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Windows Analysis Report
file.exe

Overview

General Information

Sample Name:	file.exe
Analysis ID:	882705
MD5:	58a91896eaf6efe03ffe6ebb7b731792
SHA1:	e3ec7807b22e91e887dd1bc752c426041607216f
SHA256:	dc984e3a8de291d49bab5940b8f8047d2a7d8f0dab4231342c36edcee9cbb92e
Tags:	NETexeMSILx64zgRAT
Infos:

Detection

Remcos, zgRAT

Score:	100
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Found malware configuration

Yara detected UAC Bypass using CMSTP

Contains functionality to bypass UAC (CMSTPLUA)

Multi AV Scanner detection for submitted file

Yara detected zgRAT

Malicious sample detected (through community Yara rule)

Yara detected Remcos RAT

Sigma detected: Remcos

Writes to foreign memory regions

Contains functionality to steal Firefox passwords or cookies

Delayed program exit found

Machine Learning detection for sample

Allocates memory in foreign processes

Contains functionality to modify clipboard data

.NET source code contains potential unpacker

Injects a PE file into a foreign processes

Contains functionality to steal Chrome passwords or cookies

.NET source code contains method to dynamically call methods (often used by packers)

C2 URLs / IPs found in malware configuration

Queries the volume information (name, serial number etc) of a device

Yara signature match

Contains functionality to enumerate process and check for explorer.exe or svchost.exe (often used for thread injection)

Contains functionality to check if a debugger is running (IsDebuggerPresent)

Contains functionality to query locales information (e.g. system language)

May sleep (evasive loops) to hinder dynamic analysis

Uses code obfuscation techniques (call, push, ret)

Internet Provider seen in connection with other malware

Detected potential crypto function

Contains functionality to query CPU information (cpuid)

Found potential string decryption / allocating functions

Sample execution stops while process was sleeping (likely an evasion)

Contains functionality to launch a control a shell (cmd.exe)

Contains functionality to enumerate running services

Contains functionality to dynamically determine API calls

Contains functionality to read the clipboard data

HTTP GET or POST without a user agent

Contains functionality which may be used to detect a debugger (GetProcessHeap)

IP address seen in connection with other malware

Contains long sleeps (>= 3 min)

Enables debug privileges

PE file does not import any functions

Sample file is different than original file name gathered from version info

Extensive use of GetProcAddress (often used to hide API calls)

Contains functionality to read the PEB

Detected TCP or UDP traffic on non-standard ports

Contains functionality to download and launch executables

Binary contains a suspicious time stamp

Contains functionality to retrieve information about pressed keystrokes

Uses Microsoft's Enhanced Cryptographic Provider

Creates a process in suspended mode (likely to inject code)

Contains functionality to simulate mouse events

Contains functionality for read data from the clipboard

Classification

Process Tree

System is w10x64

file.exe (PID: 3852 cmdline: C:\Users\user\Desktop\file.exe MD5: 58A91896EAF6EFE03FFE6EBB7B731792)

aspnet_compiler.exe (PID: 6780 cmdline: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe MD5: 17CC69238395DF61AAF483BCEF02E7C9)

aspnet_compiler.exe (PID: 6768 cmdline: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe MD5: 17CC69238395DF61AAF483BCEF02E7C9)

aspnet_compiler.exe (PID: 5828 cmdline: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe MD5: 17CC69238395DF61AAF483BCEF02E7C9)

aspnet_compiler.exe (PID: 5796 cmdline: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe MD5: 17CC69238395DF61AAF483BCEF02E7C9)

cleanup

Malware Threat Intel

Provided by

Name	Description	Attribution	Blogpost URLs	Link
Remcos, RemcosRAT	Remcos (acronym of Remote Control & Surveillance Software) is a commercial Remote Access Tool to remotely control computers.Remcos is advertised as legitimate software which can be used for surveillance and penetration testing purposes, but has been used in numerous hacking campaigns.Remcos, once installed, opens a backdoor on the computer, granting full access to the remote user.Remcos is developed by the cybersecurity company BreakingSecurity.	APT33 The Gorgon Group	http://malware-traffic-analysis.net/2017/12/22/index.html https://asec.ahnlab.com/en/32376/ https://asec.ahnlab.com/ko/25837/ https://asec.ahnlab.com/ko/32101/ https://blog.360totalsecurity.com/en/vendetta-new-threat-actor-from-europe/	https://malpedia.caad.fkie.fraunhofer.de/details/win.remcos

Name	Description	Attribution	Blogpost URLs	Link
zgRAT		No Attribution	https://bazaar.abuse.ch/browse/signature/zgRAT/	https://malpedia.caad.fkie.fraunhofer.de/details/win.zgrat

Malware Configuration

Threatname: Remcos

{"Host:Port:Password": "127.0.0.1:55433:1185.65.134.166:55433:110.11.0.5:55433:145.128.234.54:55433:1", "Assigned name": "RemoteHost", "Copy file": "remcos.exe", "Startup value": "Remcos", "Mutex": "Rmc-UQ90W9", "Keylog file": "logs.dat", "Screenshot file": "Screenshots", "Audio folder": "MicRecords", "Copy folder": "Remcos", "Keylog folder": "remcos", "Keylog file max size": "100000"}

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
file.exe	JoeSecurity_zgRAT_1	Yara detected zgRAT	Joe Security
file.exe	MALWARE_Win_zgRAT	Detects zgRAT	ditekSHen	0x33851:$s1: file:/// 0x337ad:$s2: {11111-22222-10009-11112} 0x337e1:$s3: {11111-22222-50001-00000} 0x2f33d:$s4: get_Module 0x2ba2e:$s5: Reverse 0x2baeb:$s6: BlockCopy 0x2c1ba:$s7: ReadByte 0x33865:$s8: 4C 00 6F 00 63 00 61 00 74 00 69 00 6F 00 6E 00 00 0B 46 00 69 00 6E 00 64 00 20 00 00 13 52 00 65 00 73 00 6F 00 75 00 72 00 63 00 65 00 41 00 00 11 56 00 69 00 72 00 74 00 75 00 61 00 6C 00 ...

Memory Dumps

Source	Rule	Description	Author	Strings
00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp	JoeSecurity_Remcos	Yara detected Remcos RAT	Joe Security
00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp	JoeSecurity_UACBypassusingCMSTP	Yara detected UAC Bypass using CMSTP	Joe Security
00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp	JoeSecurity_Remcos	Yara detected Remcos RAT	Joe Security
00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM	Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)	ditekSHen	0x643b8:$guid1: {3E5FC7F9-9A51-4367-9063-A120244FBEC7} 0x6434c:$s1: CoGetObject 0x64360:$s1: CoGetObject 0x6437c:$s1: CoGetObject 0x6e15e:$s1: CoGetObject 0x6430c:$s2: Elevation:Administrator!new:
00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp	Windows_Trojan_Remcos_b296e965	unknown	unknown	0x6a470:$a1: Remcos restarted by watchdog! 0x6a9d4:$a3: %02i:%02i:%02i:%03i
00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp	REMCOS_RAT_variants	unknown	unknown	0x644c4:$str_a1: C:\Windows\System32\cmd.exe 0x64440:$str_a3: /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWOR 0x64440:$str_a4: /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWOR 0x64938:$str_a5: \AppData\Local\Google\Chrome\User Data\Default\Login Data 0x65168:$str_b1: CreateObject("Scripting.FileSystemObject").DeleteFile(Wscript.ScriptFullName) 0x64534:$str_b2: Executing file: 0x655b4:$str_b3: GetDirectListeningPort 0x64f58:$str_b4: Set fso = CreateObject("Scripting.FileSystemObject") 0x650d8:$str_b7: \update.vbs 0x6455c:$str_b9: Downloaded file: 0x64548:$str_b10: Downloading file: 0x645ec:$str_b12: Failed to upload file: 0x6557c:$str_b13: StartForward 0x6559c:$str_b14: StopForward 0x65030:$str_b15: fso.DeleteFile " 0x64fc4:$str_b16: On Error Resume Next 0x65060:$str_b17: fso.DeleteFolder " 0x645dc:$str_b18: Uploaded file: 0x6459c:$str_b19: Unable to delete: 0x64ff8:$str_b20: while fso.FileExists(" 0x64a71:$str_c0: [Firefox StoredLogins not found]
00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_UACBypassusingCMSTP	Yara detected UAC Bypass using CMSTP	Joe Security
00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_Remcos	Yara detected Remcos RAT	Joe Security
00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp	Windows_Trojan_Remcos_b296e965	unknown	unknown	0x6f8308:$a1: Remcos restarted by watchdog! 0x76f778:$a1: Remcos restarted by watchdog! 0x6f886c:$a3: %02i:%02i:%02i:%03i 0x76fcdc:$a3: %02i:%02i:%02i:%03i
Process Memory Space: file.exe PID: 3852	JoeSecurity_UACBypassusingCMSTP	Yara detected UAC Bypass using CMSTP	Joe Security
Process Memory Space: file.exe PID: 3852	JoeSecurity_Remcos	Yara detected Remcos RAT	Joe Security
Process Memory Space: file.exe PID: 3852	Windows_Trojan_Remcos_b296e965	unknown	unknown	0x2f4ad4:$a1: Remcos restarted by watchdog! 0x2f5028:$a3: %02i:%02i:%02i:%03i 0x2f53ea:$a3: %02i:%02i:%02i:%03i
Process Memory Space: aspnet_compiler.exe PID: 5796	JoeSecurity_UACBypassusingCMSTP	Yara detected UAC Bypass using CMSTP	Joe Security
Process Memory Space: aspnet_compiler.exe PID: 5796	JoeSecurity_Remcos	Yara detected Remcos RAT	Joe Security
Process Memory Space: aspnet_compiler.exe PID: 5796	Windows_Trojan_Remcos_b296e965	unknown	unknown	0x13b68:$a1: Remcos restarted by watchdog! 0x140bc:$a3: %02i:%02i:%02i:%03i 0x1447e:$a3: %02i:%02i:%02i:%03i
Click to see the 10 entries

Unpacked PEs

Source	Rule	Description	Author	Strings
4.2.aspnet_compiler.exe.400000.0.unpack	JoeSecurity_UACBypassusingCMSTP	Yara detected UAC Bypass using CMSTP	Joe Security
4.2.aspnet_compiler.exe.400000.0.unpack	JoeSecurity_Remcos	Yara detected Remcos RAT	Joe Security
4.2.aspnet_compiler.exe.400000.0.unpack	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM	Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)	ditekSHen	0x633b8:$guid1: {3E5FC7F9-9A51-4367-9063-A120244FBEC7} 0x6334c:$s1: CoGetObject 0x63360:$s1: CoGetObject 0x6337c:$s1: CoGetObject 0x6d15e:$s1: CoGetObject 0x6330c:$s2: Elevation:Administrator!new:
4.2.aspnet_compiler.exe.400000.0.unpack	Windows_Trojan_Remcos_b296e965	unknown	unknown	0x69470:$a1: Remcos restarted by watchdog! 0x699d4:$a3: %02i:%02i:%02i:%03i
4.2.aspnet_compiler.exe.400000.0.unpack	REMCOS_RAT_variants	unknown	unknown	0x634c4:$str_a1: C:\Windows\System32\cmd.exe 0x63440:$str_a3: /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWOR 0x63440:$str_a4: /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWOR 0x63938:$str_a5: \AppData\Local\Google\Chrome\User Data\Default\Login Data 0x64168:$str_b1: CreateObject("Scripting.FileSystemObject").DeleteFile(Wscript.ScriptFullName) 0x63534:$str_b2: Executing file: 0x645b4:$str_b3: GetDirectListeningPort 0x63f58:$str_b4: Set fso = CreateObject("Scripting.FileSystemObject") 0x640d8:$str_b7: \update.vbs 0x6355c:$str_b9: Downloaded file: 0x63548:$str_b10: Downloading file: 0x635ec:$str_b12: Failed to upload file: 0x6457c:$str_b13: StartForward 0x6459c:$str_b14: StopForward 0x64030:$str_b15: fso.DeleteFile " 0x63fc4:$str_b16: On Error Resume Next 0x64060:$str_b17: fso.DeleteFolder " 0x635dc:$str_b18: Uploaded file: 0x6359c:$str_b19: Unable to delete: 0x63ff8:$str_b20: while fso.FileExists(" 0x63a71:$str_c0: [Firefox StoredLogins not found]
0.2.file.exe.17793a03e98.2.unpack	JoeSecurity_UACBypassusingCMSTP	Yara detected UAC Bypass using CMSTP	Joe Security
0.2.file.exe.17793a03e98.2.unpack	JoeSecurity_Remcos	Yara detected Remcos RAT	Joe Security
0.2.file.exe.17793a03e98.2.unpack	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM	Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)	ditekSHen	0x623b8:$guid1: {3E5FC7F9-9A51-4367-9063-A120244FBEC7} 0x6234c:$s1: CoGetObject 0x62360:$s1: CoGetObject 0x6237c:$s1: CoGetObject 0x6c15e:$s1: CoGetObject 0x6230c:$s2: Elevation:Administrator!new:
0.2.file.exe.17793a03e98.2.unpack	Windows_Trojan_Remcos_b296e965	unknown	unknown	0x68470:$a1: Remcos restarted by watchdog! 0x689d4:$a3: %02i:%02i:%02i:%03i
0.2.file.exe.17793a03e98.2.unpack	REMCOS_RAT_variants	unknown	unknown	0x624c4:$str_a1: C:\Windows\System32\cmd.exe 0x62440:$str_a3: /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWOR 0x62440:$str_a4: /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWOR 0x62938:$str_a5: \AppData\Local\Google\Chrome\User Data\Default\Login Data 0x63168:$str_b1: CreateObject("Scripting.FileSystemObject").DeleteFile(Wscript.ScriptFullName) 0x62534:$str_b2: Executing file: 0x635b4:$str_b3: GetDirectListeningPort 0x62f58:$str_b4: Set fso = CreateObject("Scripting.FileSystemObject") 0x630d8:$str_b7: \update.vbs 0x6255c:$str_b9: Downloaded file: 0x62548:$str_b10: Downloading file: 0x625ec:$str_b12: Failed to upload file: 0x6357c:$str_b13: StartForward 0x6359c:$str_b14: StopForward 0x63030:$str_b15: fso.DeleteFile " 0x62fc4:$str_b16: On Error Resume Next 0x63060:$str_b17: fso.DeleteFolder " 0x625dc:$str_b18: Uploaded file: 0x6259c:$str_b19: Unable to delete: 0x62ff8:$str_b20: while fso.FileExists(" 0x62a71:$str_c0: [Firefox StoredLogins not found]
0.0.file.exe.177e97b0000.0.unpack	JoeSecurity_zgRAT_1	Yara detected zgRAT	Joe Security
0.0.file.exe.177e97b0000.0.unpack	MALWARE_Win_zgRAT	Detects zgRAT	ditekSHen	0x33851:$s1: file:/// 0x337ad:$s2: {11111-22222-10009-11112} 0x337e1:$s3: {11111-22222-50001-00000} 0x2f33d:$s4: get_Module 0x2ba2e:$s5: Reverse 0x2baeb:$s6: BlockCopy 0x2c1ba:$s7: ReadByte 0x33865:$s8: 4C 00 6F 00 63 00 61 00 74 00 69 00 6F 00 6E 00 00 0B 46 00 69 00 6E 00 64 00 20 00 00 13 52 00 65 00 73 00 6F 00 75 00 72 00 63 00 65 00 41 00 00 11 56 00 69 00 72 00 74 00 75 00 61 00 6C 00 ...
0.2.file.exe.177e97b0000.3.unpack	JoeSecurity_zgRAT_1	Yara detected zgRAT	Joe Security
0.2.file.exe.177e97b0000.3.unpack	MALWARE_Win_zgRAT	Detects zgRAT	ditekSHen	0x33851:$s1: file:/// 0x337ad:$s2: {11111-22222-10009-11112} 0x337e1:$s3: {11111-22222-50001-00000} 0x2f33d:$s4: get_Module 0x2ba2e:$s5: Reverse 0x2baeb:$s6: BlockCopy 0x2c1ba:$s7: ReadByte 0x33865:$s8: 4C 00 6F 00 63 00 61 00 74 00 69 00 6F 00 6E 00 00 0B 46 00 69 00 6E 00 64 00 20 00 00 13 52 00 65 00 73 00 6F 00 75 00 72 00 63 00 65 00 41 00 00 11 56 00 69 00 72 00 74 00 75 00 61 00 6C 00 ...
4.2.aspnet_compiler.exe.400000.0.raw.unpack	JoeSecurity_UACBypassusingCMSTP	Yara detected UAC Bypass using CMSTP	Joe Security
4.2.aspnet_compiler.exe.400000.0.raw.unpack	JoeSecurity_Remcos	Yara detected Remcos RAT	Joe Security
4.2.aspnet_compiler.exe.400000.0.raw.unpack	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM	Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)	ditekSHen	0x643b8:$guid1: {3E5FC7F9-9A51-4367-9063-A120244FBEC7} 0x6434c:$s1: CoGetObject 0x64360:$s1: CoGetObject 0x6437c:$s1: CoGetObject 0x6e15e:$s1: CoGetObject 0x6430c:$s2: Elevation:Administrator!new:
4.2.aspnet_compiler.exe.400000.0.raw.unpack	Windows_Trojan_Remcos_b296e965	unknown	unknown	0x6a470:$a1: Remcos restarted by watchdog! 0x6a9d4:$a3: %02i:%02i:%02i:%03i
4.2.aspnet_compiler.exe.400000.0.raw.unpack	REMCOS_RAT_variants	unknown	unknown	0x644c4:$str_a1: C:\Windows\System32\cmd.exe 0x64440:$str_a3: /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWOR 0x64440:$str_a4: /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWOR 0x64938:$str_a5: \AppData\Local\Google\Chrome\User Data\Default\Login Data 0x65168:$str_b1: CreateObject("Scripting.FileSystemObject").DeleteFile(Wscript.ScriptFullName) 0x64534:$str_b2: Executing file: 0x655b4:$str_b3: GetDirectListeningPort 0x64f58:$str_b4: Set fso = CreateObject("Scripting.FileSystemObject") 0x650d8:$str_b7: \update.vbs 0x6455c:$str_b9: Downloaded file: 0x64548:$str_b10: Downloading file: 0x645ec:$str_b12: Failed to upload file: 0x6557c:$str_b13: StartForward 0x6559c:$str_b14: StopForward 0x65030:$str_b15: fso.DeleteFile " 0x64fc4:$str_b16: On Error Resume Next 0x65060:$str_b17: fso.DeleteFolder " 0x645dc:$str_b18: Uploaded file: 0x6459c:$str_b19: Unable to delete: 0x64ff8:$str_b20: while fso.FileExists(" 0x64a71:$str_c0: [Firefox StoredLogins not found]
0.2.file.exe.17793a03e98.2.raw.unpack	JoeSecurity_UACBypassusingCMSTP	Yara detected UAC Bypass using CMSTP	Joe Security
0.2.file.exe.17793a03e98.2.raw.unpack	JoeSecurity_Remcos	Yara detected Remcos RAT	Joe Security
0.2.file.exe.17793a03e98.2.raw.unpack	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM	Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)	ditekSHen	0x633b8:$guid1: {3E5FC7F9-9A51-4367-9063-A120244FBEC7} 0xda828:$guid1: {3E5FC7F9-9A51-4367-9063-A120244FBEC7} 0x6334c:$s1: CoGetObject 0x63360:$s1: CoGetObject 0x6337c:$s1: CoGetObject 0x6d15e:$s1: CoGetObject 0xda7bc:$s1: CoGetObject 0xda7d0:$s1: CoGetObject 0xda7ec:$s1: CoGetObject 0xe45ce:$s1: CoGetObject 0x6330c:$s2: Elevation:Administrator!new: 0xda77c:$s2: Elevation:Administrator!new:
0.2.file.exe.17793a03e98.2.raw.unpack	Windows_Trojan_Remcos_b296e965	unknown	unknown	0x69470:$a1: Remcos restarted by watchdog! 0xe08e0:$a1: Remcos restarted by watchdog! 0x699d4:$a3: %02i:%02i:%02i:%03i 0xe0e44:$a3: %02i:%02i:%02i:%03i
Click to see the 18 entries

Sigma Signatures

Stealing of Sensitive Information

Sigma detected: Remcos

Source: Registry Key set

Author: Joe Security: Data: Details: B8 44 BD 83 D8 99 C8 1A 1F B1 2D B6 25 A1 5D 8A 03 5A B2 9B E4 8C 13 84 AA 33 63 EB 80 AF 7A 48 CB F5 21 D2 59 12 53 78 41 FD 3C 3E FC E0 99 D2 EF C8 AE 2A AB A8 F5 EF FE 5B F1 7F 36 AD 4B 29 AC 6A 0B 2C 7E 19 B1 0F E4 48 4F A9 3D 87 DA 03 93 BB 9F DA ED 8E A0 DD CC E5 F1 B7 02 19 23 C1 63 53 44 B9 17 19 14 64 43 E6 AD BC 04 35 F1 20 6B 9F 4E B8 0E 8E 0E 69 39 51 E0 75 1C BD 62 DC C2 F7 D3 DD , EventID: 13, EventType: SetValue, Image: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe, ProcessId: 5796, TargetObject: HKEY_CURRENT_USER\Software\Rmc-UQ90W9\exepath

Snort Signatures

⊘No Snort rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Found malware configuration

Source: 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp

Malware Configuration Extractor: Remcos {"Host:Port:Password": "127.0.0.1:55433:1185.65.134.166:55433:110.11.0.5:55433:145.128.234.54:55433:1", "Assigned name": "RemoteHost", "Copy file": "remcos.exe", "Startup value": "Remcos", "Mutex": "Rmc-UQ90W9", "Keylog file": "logs.dat", "Screenshot file": "Screenshots", "Audio folder": "MicRecords", "Copy folder": "Remcos", "Keylog folder": "remcos", "Keylog file max size": "100000"}

Multi AV Scanner detection for submitted file

Source: file.exe	ReversingLabs: Detection: 35%
Source: file.exe	Virustotal: Detection: 46%			Perma Link

Yara detected Remcos RAT

Source: Yara match	File source: 4.2.aspnet_compiler.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.17793a03e98.2.unpack, type: UNPACKEDPE
Source: Yara match	File source: 4.2.aspnet_compiler.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.17793a03e98.2.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: file.exe PID: 3852, type: MEMORYSTR
Source: Yara match	File source: Process Memory Space: aspnet_compiler.exe PID: 5796, type: MEMORYSTR

Machine Learning detection for sample

Source: file.exe

Joe Sandbox ML: detected

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_00432142 CryptAcquireContextA,CryptGenRandom,CryptReleaseContext,

Source: file.exe, 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp

Binary or memory string: -----BEGIN PUBLIC KEY-----

Exploits

Yara detected UAC Bypass using CMSTP

Source: Yara match	File source: 4.2.aspnet_compiler.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.17793a03e98.2.unpack, type: UNPACKEDPE
Source: Yara match	File source: 4.2.aspnet_compiler.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.17793a03e98.2.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: file.exe PID: 3852, type: MEMORYSTR
Source: Yara match	File source: Process Memory Space: aspnet_compiler.exe PID: 5796, type: MEMORYSTR

Privilege Escalation

Contains functionality to bypass UAC (CMSTPLUA)

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_00406B71 _wcslen,CoGetObject,

Source: file.exe

Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Source:	Binary string: CEMENT.pdb source: file.exe, 00000000.00000002.567234773.00000177EB320000.00000004.08000000.00040000.00000000.sdmp, file.exe, 00000000.00000002.564438533.000001778003B000.00000004.00000800.00020000.00000000.sdmp
Source:	Binary string: NBNNhH873.pdb source: file.exe

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0044D0F9 FindFirstFileExA,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0040B0AA FindFirstFileA,FindClose,DeleteFileA,GetLastError,DeleteFileA,GetLastError,FindNextFileA,FindClose,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0040B2B1 FindFirstFileA,FindClose,DeleteFileA,GetLastError,FindNextFileA,FindClose,FindClose,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00418650 FindFirstFileW,FindNextFileW,FindNextFileW,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0040B8C7 FindFirstFileW,PathFileExistsW,FindNextFileW,FindClose,FindClose,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00408909 __EH_prolog,__CxxThrowException@8,FindFirstFileW,FindNextFileW,FindClose,FindClose,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0041AC0A FindFirstFileW,FindNextFileW,RemoveDirectoryW,SetFileAttributesW,DeleteFileW,GetLastError,FindClose,RemoveDirectoryW,FindClose,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00408D1B __EH_prolog,FindFirstFileW,FindNextFileW,FindClose,FindClose,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00407E80 __EH_prolog,FindFirstFileW,__CxxThrowException@8,FindNextFileW,FindClose,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00406EB0 FindFirstFileW,FindNextFileW,

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_0040730B SetEvent,GetFileAttributesW,DeleteFileW,ShellExecuteW,GetLogicalDriveStringsA,SetFileAttributesW,DeleteFileA,Sleep,StrToIntA,CreateDirectoryW,

Networking

C2 URLs / IPs found in malware configuration

Source: Malware configuration extractor

URLs: 127.0.0.1

Source: Joe Sandbox View

ASN Name: ESAB-ASSE ESAB-ASSE

Source: global traffic

HTTP traffic detected: GET /json.gp HTTP/1.1Host: geoplugin.netCache-Control: no-cache

Source: Joe Sandbox View

IP Address: 178.237.33.50 178.237.33.50

Source: global traffic	TCP traffic: 192.168.2.4:49693 -> 185.65.134.166:55433
Source: global traffic	TCP traffic: 192.168.2.4:49698 -> 45.128.234.54:55433

Source: unknown	TCP traffic detected without corresponding DNS query: 185.65.134.166
Source: unknown	TCP traffic detected without corresponding DNS query: 185.65.134.166
Source: unknown	TCP traffic detected without corresponding DNS query: 185.65.134.166
Source: unknown	TCP traffic detected without corresponding DNS query: 45.128.234.54
Source: unknown	TCP traffic detected without corresponding DNS query: 45.128.234.54
Source: unknown	TCP traffic detected without corresponding DNS query: 45.128.234.54
Source: unknown	TCP traffic detected without corresponding DNS query: 45.128.234.54
Source: unknown	TCP traffic detected without corresponding DNS query: 45.128.234.54
Source: unknown	TCP traffic detected without corresponding DNS query: 45.128.234.54
Source: unknown	TCP traffic detected without corresponding DNS query: 45.128.234.54
Source: unknown	TCP traffic detected without corresponding DNS query: 45.128.234.54
Source: unknown	TCP traffic detected without corresponding DNS query: 45.128.234.54
Source: unknown	TCP traffic detected without corresponding DNS query: 45.128.234.54
Source: unknown	TCP traffic detected without corresponding DNS query: 45.128.234.54

Source: aspnet_compiler.exe, 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://geoplugin.net/j
Source: aspnet_compiler.exe, 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp, aspnet_compiler.exe, 00000004.00000002.814983139.0000000000F4B000.00000004.00000020.00020000.00000000.sdmp, aspnet_compiler.exe, 00000004.00000003.658074028.0000000000F10000.00000004.00000020.00020000.00000000.sdmp, aspnet_compiler.exe, 00000004.00000003.658074028.0000000000F4B000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://geoplugin.net/json.gp
Source: file.exe, 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp, aspnet_compiler.exe, 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp	String found in binary or memory: http://geoplugin.net/json.gp/C
Source: aspnet_compiler.exe, 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://geoplugin.net/json.gp1
Source: aspnet_compiler.exe, 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://geoplugin.net/json.gp2C9DCABD6423689A465F00D4F
Source: aspnet_compiler.exe, 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://geoplugin.net/json.gpESS
Source: aspnet_compiler.exe, 00000004.00000002.814983139.0000000000F4B000.00000004.00000020.00020000.00000000.sdmp, aspnet_compiler.exe, 00000004.00000003.658074028.0000000000F4B000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://geoplugin.net/json.gpf
Source: aspnet_compiler.exe, 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://geoplugin.net/json.gples8
Source: aspnet_compiler.exe, 00000004.00000002.814983139.0000000000F4B000.00000004.00000020.00020000.00000000.sdmp, aspnet_compiler.exe, 00000004.00000003.658074028.0000000000F4B000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://geoplugin.net/json.gprol

Source: unknown

DNS traffic detected: queries for: geoplugin.net

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_004255BC recv,

Source: global traffic

HTTP traffic detected: GET /json.gp HTTP/1.1Host: geoplugin.netCache-Control: no-cache

Key, Mouse, Clipboard, Microphone and Screen Capturing

Contains functionality to modify clipboard data

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_00415802 OpenClipboard,EmptyClipboard,GlobalAlloc,GlobalLock,GlobalUnlock,SetClipboardData,CloseClipboard,OpenClipboard,GetClipboardData,GlobalLock,GlobalUnlock,CloseClipboard,

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_00415802 OpenClipboard,EmptyClipboard,GlobalAlloc,GlobalLock,GlobalUnlock,SetClipboardData,CloseClipboard,OpenClipboard,GetClipboardData,GlobalLock,GlobalUnlock,CloseClipboard,

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_004099E3 GetForegroundWindow,GetWindowThreadProcessId,GetKeyboardLayout,GetKeyState,GetKeyboardState,ToUnicodeEx,

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_00415802 OpenClipboard,EmptyClipboard,GlobalAlloc,GlobalLock,GlobalUnlock,SetClipboardData,CloseClipboard,OpenClipboard,GetClipboardData,GlobalLock,GlobalUnlock,CloseClipboard,

E-Banking Fraud

Yara detected Remcos RAT

Source: Yara match	File source: 4.2.aspnet_compiler.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.17793a03e98.2.unpack, type: UNPACKEDPE
Source: Yara match	File source: 4.2.aspnet_compiler.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.17793a03e98.2.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: file.exe PID: 3852, type: MEMORYSTR
Source: Yara match	File source: Process Memory Space: aspnet_compiler.exe PID: 5796, type: MEMORYSTR

System Summary

Malicious sample detected (through community Yara rule)

Source: file.exe, type: SAMPLE	Matched rule: Detects zgRAT Author: ditekSHen
Source: 4.2.aspnet_compiler.exe.400000.0.unpack, type: UNPACKEDPE	Matched rule: Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) Author: ditekSHen
Source: 4.2.aspnet_compiler.exe.400000.0.unpack, type: UNPACKEDPE	Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 4.2.aspnet_compiler.exe.400000.0.unpack, type: UNPACKEDPE	Matched rule: REMCOS_RAT_variants Author: unknown
Source: 0.2.file.exe.17793a03e98.2.unpack, type: UNPACKEDPE	Matched rule: Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) Author: ditekSHen
Source: 0.2.file.exe.17793a03e98.2.unpack, type: UNPACKEDPE	Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 0.2.file.exe.17793a03e98.2.unpack, type: UNPACKEDPE	Matched rule: REMCOS_RAT_variants Author: unknown
Source: 0.0.file.exe.177e97b0000.0.unpack, type: UNPACKEDPE	Matched rule: Detects zgRAT Author: ditekSHen
Source: 0.2.file.exe.177e97b0000.3.unpack, type: UNPACKEDPE	Matched rule: Detects zgRAT Author: ditekSHen
Source: 4.2.aspnet_compiler.exe.400000.0.raw.unpack, type: UNPACKEDPE	Matched rule: Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) Author: ditekSHen
Source: 4.2.aspnet_compiler.exe.400000.0.raw.unpack, type: UNPACKEDPE	Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 4.2.aspnet_compiler.exe.400000.0.raw.unpack, type: UNPACKEDPE	Matched rule: REMCOS_RAT_variants Author: unknown
Source: 0.2.file.exe.17793a03e98.2.raw.unpack, type: UNPACKEDPE	Matched rule: Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) Author: ditekSHen
Source: 0.2.file.exe.17793a03e98.2.raw.unpack, type: UNPACKEDPE	Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY	Matched rule: Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) Author: ditekSHen
Source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY	Matched rule: REMCOS_RAT_variants Author: unknown
Source: 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: Process Memory Space: file.exe PID: 3852, type: MEMORYSTR	Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: Process Memory Space: aspnet_compiler.exe PID: 5796, type: MEMORYSTR	Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown

Source: file.exe, type: SAMPLE	Matched rule: MALWARE_Win_zgRAT author = ditekSHen, description = Detects zgRAT
Source: 4.2.aspnet_compiler.exe.400000.0.unpack, type: UNPACKEDPE	Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM author = ditekSHen, description = Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Source: 4.2.aspnet_compiler.exe.400000.0.unpack, type: UNPACKEDPE	Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 4.2.aspnet_compiler.exe.400000.0.unpack, type: UNPACKEDPE	Matched rule: REMCOS_RAT_variants Description = Detects multiple variants of REMCOS seen in the wild. Created by modifying and combining several of Florian\'s recent REMCOS ruleset. This rule aims for broader detection than the original ruleset, which used separate rules for each variant. If you do decide to break it into individual rules, the YARA strings variable names are grouped by the REMCOS variant type., Website = https://www.deadbits.org, Date = 2019-07-18, Repo = https://github.com/deadbits/yara-rules, Author = Adam M. Swanda
Source: 0.2.file.exe.17793a03e98.2.unpack, type: UNPACKEDPE	Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM author = ditekSHen, description = Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Source: 0.2.file.exe.17793a03e98.2.unpack, type: UNPACKEDPE	Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 0.2.file.exe.17793a03e98.2.unpack, type: UNPACKEDPE	Matched rule: REMCOS_RAT_variants Description = Detects multiple variants of REMCOS seen in the wild. Created by modifying and combining several of Florian\'s recent REMCOS ruleset. This rule aims for broader detection than the original ruleset, which used separate rules for each variant. If you do decide to break it into individual rules, the YARA strings variable names are grouped by the REMCOS variant type., Website = https://www.deadbits.org, Date = 2019-07-18, Repo = https://github.com/deadbits/yara-rules, Author = Adam M. Swanda
Source: 0.0.file.exe.177e97b0000.0.unpack, type: UNPACKEDPE	Matched rule: MALWARE_Win_zgRAT author = ditekSHen, description = Detects zgRAT
Source: 0.2.file.exe.177e97b0000.3.unpack, type: UNPACKEDPE	Matched rule: MALWARE_Win_zgRAT author = ditekSHen, description = Detects zgRAT
Source: 4.2.aspnet_compiler.exe.400000.0.raw.unpack, type: UNPACKEDPE	Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM author = ditekSHen, description = Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Source: 4.2.aspnet_compiler.exe.400000.0.raw.unpack, type: UNPACKEDPE	Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 4.2.aspnet_compiler.exe.400000.0.raw.unpack, type: UNPACKEDPE	Matched rule: REMCOS_RAT_variants Description = Detects multiple variants of REMCOS seen in the wild. Created by modifying and combining several of Florian\'s recent REMCOS ruleset. This rule aims for broader detection than the original ruleset, which used separate rules for each variant. If you do decide to break it into individual rules, the YARA strings variable names are grouped by the REMCOS variant type., Website = https://www.deadbits.org, Date = 2019-07-18, Repo = https://github.com/deadbits/yara-rules, Author = Adam M. Swanda
Source: 0.2.file.exe.17793a03e98.2.raw.unpack, type: UNPACKEDPE	Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM author = ditekSHen, description = Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Source: 0.2.file.exe.17793a03e98.2.raw.unpack, type: UNPACKEDPE	Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY	Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM author = ditekSHen, description = Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY	Matched rule: REMCOS_RAT_variants Description = Detects multiple variants of REMCOS seen in the wild. Created by modifying and combining several of Florian\'s recent REMCOS ruleset. This rule aims for broader detection than the original ruleset, which used separate rules for each variant. If you do decide to break it into individual rules, the YARA strings variable names are grouped by the REMCOS variant type., Website = https://www.deadbits.org, Date = 2019-07-18, Repo = https://github.com/deadbits/yara-rules, Author = Adam M. Swanda
Source: 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY	Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: Process Memory Space: file.exe PID: 3852, type: MEMORYSTR	Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: Process Memory Space: aspnet_compiler.exe PID: 5796, type: MEMORYSTR	Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23

Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_00007FF814F23AAA
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00437040
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_004361CE
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_004131DA
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0044C249
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00432251
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00426351
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0041C46D
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_004264BA
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00436603
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0043C76D
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00425719
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00434731
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_004358BA
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_004529D9
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0043C99C
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0041DA05
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00436A38
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00444AF0
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0043CBCB
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00451BAB
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00425CA8
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00435DB6
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0043CE28

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: String function: 0043307B appears 41 times
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: String function: 00402073 appears 50 times
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: String function: 00433700 appears 54 times

Source: file.exe

Static PE information: No import functions for PE file found

Source: file.exe, 00000000.00000002.567234773.00000177EB320000.00000004.08000000.00040000.00000000.sdmp	Binary or memory string: OriginalFilenameCEMENT.dll. vs file.exe
Source: file.exe, 00000000.00000002.566970526.00000177E991C000.00000004.00000020.00020000.00000000.sdmp	Binary or memory string: OriginalFilenameclr.dllT vs file.exe
Source: file.exe, 00000000.00000002.566934362.00000177E9842000.00000002.00000001.01000000.00000003.sdmp	Binary or memory string: OriginalFilenameNBNNhH873.exe4 vs file.exe
Source: file.exe, 00000000.00000002.564438533.000001778003B000.00000004.00000800.00020000.00000000.sdmp	Binary or memory string: OriginalFilenameCEMENT.dll. vs file.exe
Source: file.exe	Binary or memory string: OriginalFilenameNBNNhH873.exe4 vs file.exe

Source: file.exe

Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ

Source: file.exe	ReversingLabs: Detection: 35%
Source: file.exe	Virustotal: Detection: 46%

Source: file.exe

Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ

Source: C:\Users\user\Desktop\file.exe

Key opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Source: unknown	Process created: C:\Users\user\Desktop\file.exe C:\Users\user\Desktop\file.exe
Source: C:\Users\user\Desktop\file.exe	Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Source: C:\Users\user\Desktop\file.exe	Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Source: C:\Users\user\Desktop\file.exe	Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Source: C:\Users\user\Desktop\file.exe	Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Source: C:\Users\user\Desktop\file.exe	Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Source: C:\Users\user\Desktop\file.exe	Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Source: C:\Users\user\Desktop\file.exe	Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Source: C:\Users\user\Desktop\file.exe	Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{057EEE47-2572-4AA1-88D7-60CE2149E33C}\InProcServer32

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_00416840 GetCurrentProcess,OpenProcessToken,LookupPrivilegeValueA,AdjustTokenPrivileges,GetLastError,

Source: C:\Users\user\Desktop\file.exe

File created: C:\Users\user\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\file.exe.log

Jump to behavior

Source: classification engine

Classification label: mal100.troj.spyw.expl.evad.winEXE@9/2@1/5

Source: file.exe	Static file information: TRID: Win64 Executable GUI Net Framework (217006/5) 49.88%
Source: C:\Users\user\Desktop\file.exe	Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_64\mscorlib\ac26e2af62f23e37e645b5e44068a025\mscorlib.ni.dll

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_004195A5 OpenSCManagerW,OpenServiceW,CloseServiceHandle,StartServiceW,CloseServiceHandle,CloseServiceHandle,CloseServiceHandle,

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_0040E991 GetModuleFileNameW,CreateToolhelp32Snapshot,Process32FirstW,Process32NextW,CloseHandle,CreateMutexA,CloseHandle,

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Mutant created: \Sessions\1\BaseNamedObjects\Rmc-UQ90W9

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_0041A003 FindResourceA,LoadResource,LockResource,SizeofResource,

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	File read: C:\Windows\System32\drivers\etc\hosts			Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	File read: C:\Windows\System32\drivers\etc\hosts			Jump to behavior

Source: file.exe

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR

Source: file.exe

Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Source: file.exe

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Source:	Binary string: CEMENT.pdb source: file.exe, 00000000.00000002.567234773.00000177EB320000.00000004.08000000.00040000.00000000.sdmp, file.exe, 00000000.00000002.564438533.000001778003B000.00000004.00000800.00020000.00000000.sdmp
Source:	Binary string: NBNNhH873.pdb source: file.exe

Data Obfuscation

.NET source code contains potential unpacker

Source: file.exe, JLcALfheHFNKcZnPLt/EP1EGhU66g5S5M02Ye.cs

.Net Code: Ref8At7ZI System.Reflection.Assembly System.Reflection.Assembly::Load(System.Byte[])

.NET source code contains method to dynamically call methods (often used by packers)

Source: file.exe, rU0ptD4llTJ1hV0R3g/X0fs42yqQa7Qy1FGHk.cs

.Net Code: X0fs42yqQa7Qy1FGHk.rA1j5nF0vJo1tmjB8Xu(typeof(Marshal).TypeHandle).GetMethod("GetDelegateForFunctionPointer", new Type[] { typeof(IntPtr), X0fs42yqQa7Qy1FGHk.rA1j5nF0vJo1tmjB8Xu(typeof(Type).TypeHandle) })

Source: C:\Users\user\Desktop\file.exe	Code function: 0_2_00000177E97B2C75 push FFFFFFBAh; iretd
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00456328 push eax; ret
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0045C51D push esi; ret
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00433746 push ecx; ret
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00455A06 push ecx; ret

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_0041B4C9 LoadLibraryA,LoadLibraryA,GetProcAddress,GetProcAddress,GetModuleHandleA,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,

Source: file.exe

Static PE information: 0xEACDEA53 [Sun Oct 31 11:36:51 2094 UTC]

Source: initial sample

Static PE information: section name: .text entropy: 7.511239938683684

Source: file.exe, c2VdCkcfuulLVd3JSVN/dMdjZgcZKPfS5AC2lDf.cs	High entropy of concatenated method names: 'WcocIY8WWi', 'KHTcmWEX8l', 'ReIcHq3C21', 'rtAc6rInaP', 'SCxcOUCgho', 'HRxcCvZRpO', 'Ce4cNESpOo', '.ctor', '.cctor', 'B49EjuYwa6e1tR1hSn7'
Source: file.exe, rU0ptD4llTJ1hV0R3g/X0fs42yqQa7Qy1FGHk.cs	High entropy of concatenated method names: '.cctor', 'X1reT73iit', 'Au7kmKk34', 'grrJKvsrg', 'RLK0bfYJn', 'MrGifVCYO', 'y84SWi6la', 'xJLo4XVgE', 'AlD1yfQTm', '.ctor'

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_00406524 ShellExecuteW,URLDownloadToFileW,

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_004195A5 OpenSCManagerW,OpenServiceW,CloseServiceHandle,StartServiceW,CloseServiceHandle,CloseServiceHandle,CloseServiceHandle,

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Source: C:\Users\user\Desktop\file.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\file.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\file.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\file.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\file.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\file.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\file.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\file.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\file.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\file.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\file.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\file.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\file.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Process information set: NOOPENFILEERRORBOX

Malware Analysis System Evasion

Delayed program exit found

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_0040ECEA Sleep,ExitProcess,

Source: C:\Users\user\Desktop\file.exe TID: 5464	Thread sleep time: -922337203685477s >= -30000s
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe TID: 944	Thread sleep count: 176 > 30
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe TID: 944	Thread sleep time: -88000s >= -30000s

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Last function: Thread delayed
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Last function: Thread delayed

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: OpenSCManagerA,EnumServicesStatusW,GetLastError,EnumServicesStatusW,OpenServiceW,QueryServiceConfigW,GetLastError,QueryServiceConfigW,CloseServiceHandle,CloseServiceHandle,

Source: C:\Users\user\Desktop\file.exe

Thread delayed: delay time: 922337203685477

Source: C:\Users\user\Desktop\file.exe

Process information queried: ProcessInformation

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0044D0F9 FindFirstFileExA,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0040B0AA FindFirstFileA,FindClose,DeleteFileA,GetLastError,DeleteFileA,GetLastError,FindNextFileA,FindClose,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0040B2B1 FindFirstFileA,FindClose,DeleteFileA,GetLastError,FindNextFileA,FindClose,FindClose,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00418650 FindFirstFileW,FindNextFileW,FindNextFileW,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0040B8C7 FindFirstFileW,PathFileExistsW,FindNextFileW,FindClose,FindClose,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00408909 __EH_prolog,__CxxThrowException@8,FindFirstFileW,FindNextFileW,FindClose,FindClose,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0041AC0A FindFirstFileW,FindNextFileW,RemoveDirectoryW,SetFileAttributesW,DeleteFileW,GetLastError,FindClose,RemoveDirectoryW,FindClose,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00408D1B __EH_prolog,FindFirstFileW,FindNextFileW,FindClose,FindClose,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00407E80 __EH_prolog,FindFirstFileW,__CxxThrowException@8,FindNextFileW,FindClose,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00406EB0 FindFirstFileW,FindNextFileW,

Source: C:\Users\user\Desktop\file.exe

Thread delayed: delay time: 922337203685477

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_0040730B SetEvent,GetFileAttributesW,DeleteFileW,ShellExecuteW,GetLogicalDriveStringsA,SetFileAttributesW,DeleteFileA,Sleep,StrToIntA,CreateDirectoryW,

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

API call chain: ExitProcess graph end node

Source: file.exe, 00000000.00000002.564591902.00000177920B6000.00000004.00000800.00020000.00000000.sdmp	Binary or memory string: HgfsSa/7Mz4
Source: file.exe, 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp	Binary or memory string: %bl%HgfsSa/7Mz4AIvfRNmLk/Cs/YU5W
Source: file.exe, 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp	Binary or memory string: %bVHgfsSa/7Mz4AIvfRNmLk/Cs/YU5W
Source: aspnet_compiler.exe, 00000004.00000002.814983139.0000000000F51000.00000004.00000020.00020000.00000000.sdmp, aspnet_compiler.exe, 00000004.00000002.814983139.0000000000F57000.00000004.00000020.00020000.00000000.sdmp, aspnet_compiler.exe, 00000004.00000003.658074028.0000000000F4B000.00000004.00000020.00020000.00000000.sdmp	Binary or memory string: Hyper-V RAW
Source: file.exe, 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp	Binary or memory string: %bl%HgfsSa/7Mz4
Source: aspnet_compiler.exe, 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp	Binary or memory string: Hyper-V RAW`
Source: file.exe, 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp	Binary or memory string: %bVHgfsSa/7Mz4AIvfRNmLk/Cs/YU5WBLrwdvF/nOMbOXnxggMpO2I4rdwEEEPuX43KdCEpLr8hfjnvbzKgncgEFnjBxtlFg4TfjKuZ4Cr/qhLBl/Kscx8p3EhZQxAe2rApE/tcOjHfPhRncUf4Rk3/wAyaUcppDB

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_00433304 IsProcessorFeaturePresent,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_00411241 SetLastError,GetNativeSystemInfo,SetLastError,GetProcessHeap,HeapAlloc,SetLastError,

Source: C:\Users\user\Desktop\file.exe

Process token adjusted: Debug

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_00441B85 mov eax, dword ptr fs:[00000030h]

Source: C:\Users\user\Desktop\file.exe

Memory allocated: page read and write | page guard

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00433452 SetUnhandledExceptionFilter,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_00433304 IsProcessorFeaturePresent,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_0043A3F1 IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: 4_2_004338CC SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess,

HIPS / PFW / Operating System Protection Evasion

Writes to foreign memory regions

Source: C:\Users\user\Desktop\file.exe	Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe base: 400000
Source: C:\Users\user\Desktop\file.exe	Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe base: 401000
Source: C:\Users\user\Desktop\file.exe	Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe base: 457000
Source: C:\Users\user\Desktop\file.exe	Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe base: 46F000
Source: C:\Users\user\Desktop\file.exe	Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe base: 475000
Source: C:\Users\user\Desktop\file.exe	Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe base: 476000
Source: C:\Users\user\Desktop\file.exe	Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe base: 477000
Source: C:\Users\user\Desktop\file.exe	Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe base: 47C000
Source: C:\Users\user\Desktop\file.exe	Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe base: B04008

Allocates memory in foreign processes

Source: C:\Users\user\Desktop\file.exe

Memory allocated: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe base: 400000 protect: page execute and read and write

Injects a PE file into a foreign processes

Source: C:\Users\user\Desktop\file.exe

Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe base: 400000 value starts with: 4D5A

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: GetCurrentProcessId,OpenMutexA,CloseHandle,CreateThread,CloseHandle,Sleep,OpenProcess, svchost.exe

Source: C:\Users\user\Desktop\file.exe	Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Source: C:\Users\user\Desktop\file.exe	Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Source: C:\Users\user\Desktop\file.exe	Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Source: C:\Users\user\Desktop\file.exe	Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_00418186 mouse_event,

Source: aspnet_compiler.exe, 00000004.00000002.814760961.0000000000F32000.00000004.00000020.00020000.00000000.sdmp	Binary or memory string: program managerW9\
Source: aspnet_compiler.exe, 00000004.00000002.814760961.0000000000F32000.00000004.00000020.00020000.00000000.sdmp, aspnet_compiler.exe, 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp	Binary or memory string: \|Program Manager\|

Source: C:\Users\user\Desktop\file.exe

Queries volume information: C:\Users\user\Desktop\file.exe VolumeInformation

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: GetLocaleInfoW,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: IsValidCodePage,_wcschr,_wcschr,GetLocaleInfoW,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: GetLocaleInfoW,GetLocaleInfoW,GetLocaleInfoW,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: GetLocaleInfoW,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: EnumSystemLocalesW,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: GetLocaleInfoW,GetLocaleInfoW,GetACP,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: GetLocaleInfoW,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: GetLocaleInfoA,
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: GetUserDefaultLCID,IsValidCodePage,IsValidLocale,GetLocaleInfoW,GetLocaleInfoW,

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_0043354D cpuid

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_00404F31 GetLocalTime,CreateEventA,CreateThread,

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_00447A10 _free,_free,_free,GetTimeZoneInformation,WideCharToMultiByte,WideCharToMultiByte,_free,

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: 4_2_0041A168 GetUserNameW,

Stealing of Sensitive Information

Yara detected zgRAT

Source: Yara match	File source: file.exe, type: SAMPLE
Source: Yara match	File source: 0.0.file.exe.177e97b0000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.177e97b0000.3.unpack, type: UNPACKEDPE

Yara detected Remcos RAT

Source: Yara match	File source: 4.2.aspnet_compiler.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.17793a03e98.2.unpack, type: UNPACKEDPE
Source: Yara match	File source: 4.2.aspnet_compiler.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.17793a03e98.2.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: file.exe PID: 3852, type: MEMORYSTR
Source: Yara match	File source: Process Memory Space: aspnet_compiler.exe PID: 5796, type: MEMORYSTR

Contains functionality to steal Firefox passwords or cookies

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: \AppData\Roaming\Mozilla\Firefox\Profiles\
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe	Code function: \key3.db

Contains functionality to steal Chrome passwords or cookies

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: \AppData\Local\Google\Chrome\User Data\Default\Login Data

Remote Access Functionality

Yara detected zgRAT

Source: Yara match	File source: file.exe, type: SAMPLE
Source: Yara match	File source: 0.0.file.exe.177e97b0000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.177e97b0000.3.unpack, type: UNPACKEDPE

Yara detected Remcos RAT

Source: Yara match	File source: 4.2.aspnet_compiler.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.17793a03e98.2.unpack, type: UNPACKEDPE
Source: Yara match	File source: 4.2.aspnet_compiler.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.2.file.exe.17793a03e98.2.raw.unpack, type: UNPACKEDPE
Source: Yara match	File source: 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: file.exe PID: 3852, type: MEMORYSTR
Source: Yara match	File source: Process Memory Space: aspnet_compiler.exe PID: 5796, type: MEMORYSTR

Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe

Code function: cmd.exe

Mitre Att&ck Matrix

Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Exfiltration	Command and Control	Network Effects	Remote Service Effects	Impact
Valid Accounts	1 Native API	1 Windows Service	1 Bypass User Access Control	1 Disable or Modify Tools	1 OS Credential Dumping	2 System Time Discovery	Remote Services	11 Archive Collected Data	Exfiltration Over Other Network Medium	12 Ingress Tool Transfer	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
Default Accounts	1 Command and Scripting Interpreter	Boot or Logon Initialization Scripts	1 Access Token Manipulation	1 Deobfuscate/Decode Files or Information	11 Input Capture	1 Account Discovery	Remote Desktop Protocol	11 Input Capture	Exfiltration Over Bluetooth	2 Encrypted Channel	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	2 Service Execution	Logon Script (Windows)	1 Windows Service	3 Obfuscated Files or Information	2 Credentials In Files	1 System Service Discovery	SMB/Windows Admin Shares	12 Clipboard Data	Automated Exfiltration	1 Non-Standard Port	Exploit SS7 to Track Device Location	Obtain Device Cloud Backups	Delete Device Data
Local Accounts	At (Windows)	Logon Script (Mac)	322 Process Injection	22 Software Packing	NTDS	2 File and Directory Discovery	Distributed Component Object Model	Input Capture	Scheduled Transfer	2 Non-Application Layer Protocol	SIM Card Swap		Carrier Billing Fraud
Cloud Accounts	Cron	Network Logon Script	Network Logon Script	1 Timestomp	LSA Secrets	33 System Information Discovery	SSH	Keylogging	Data Transfer Size Limits	12 Application Layer Protocol	Manipulate Device Communication		Manipulate App Store Rankings or Ratings
Replication Through Removable Media	Launchd	Rc.common	Rc.common	1 Bypass User Access Control	Cached Domain Credentials	21 Security Software Discovery	VNC	GUI Input Capture	Exfiltration Over C2 Channel	Multiband Communication	Jamming or Denial of Service		Abuse Accessibility Features
External Remote Services	Scheduled Task	Startup Items	Startup Items	1 Masquerading	DCSync	21 Virtualization/Sandbox Evasion	Windows Remote Management	Web Portal Capture	Exfiltration Over Alternative Protocol	Commonly Used Port	Rogue Wi-Fi Access Points		Data Encrypted for Impact
Drive-by Compromise	Command and Scripting Interpreter	Scheduled Task/Job	Scheduled Task/Job	21 Virtualization/Sandbox Evasion	Proc Filesystem	3 Process Discovery	Shared Webroot	Credential API Hooking	Exfiltration Over Symmetric Encrypted Non-C2 Protocol	Application Layer Protocol	Downgrade to Insecure Protocols		Generate Fraudulent Advertising Revenue
Exploit Public-Facing Application	PowerShell	At (Linux)	At (Linux)	1 Access Token Manipulation	/etc/passwd and /etc/shadow	1 System Owner/User Discovery	Software Deployment Tools	Data Staged	Exfiltration Over Asymmetric Encrypted Non-C2 Protocol	Web Protocols	Rogue Cellular Base Station		Data Destruction
Supply Chain Compromise	AppleScript	At (Windows)	At (Windows)	322 Process Injection	Network Sniffing	1 Remote System Discovery	Taint Shared Content	Local Data Staging	Exfiltration Over Unencrypted/Obfuscated Non-C2 Protocol	File Transfer Protocols			Data Encrypted for Impact

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Source	Detection	Scanner	Label	Link
file.exe	35%	ReversingLabs	Win64.Trojan.Cerbu
file.exe	46%	Virustotal		Browse
file.exe	100%	Joe Sandbox ML

Source	Detection	Scanner	Label	Link
geoplugin.net	1%	Virustotal		Browse

URLs

Source	Detection	Scanner	Label	Link
http://geoplugin.net/json.gp	0%	URL Reputation	safe
http://geoplugin.net/json.gp	0%	URL Reputation	safe
http://geoplugin.net/json.gples8	0%	Avira URL Cloud	safe
http://geoplugin.net/json.gp/C	0%	URL Reputation	safe
http://geoplugin.net/j	0%	URL Reputation	safe
http://geoplugin.net/json.gp2C9DCABD6423689A465F00D4F	0%	Avira URL Cloud	safe
http://geoplugin.net/json.gp1	0%	Avira URL Cloud	safe
http://geoplugin.net/json.gprol	0%	Avira URL Cloud	safe
http://geoplugin.net/json.gpESS	0%	Avira URL Cloud	safe
http://geoplugin.net/json.gpf	0%	Avira URL Cloud	safe
127.0.0.1	0%	Avira URL Cloud	safe
http://geoplugin.net/json.gpf	0%	Virustotal		Browse

Domains and IPs

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
geoplugin.net	178.237.33.50	true	false	1%, Virustotal, Browse	unknown

Contacted URLs

Name	Malicious	Antivirus Detection	Reputation
http://geoplugin.net/json.gp	false	URL Reputation: safe URL Reputation: safe	unknown
127.0.0.1	true	Avira URL Cloud: safe	unknown

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://geoplugin.net/json.gples8	aspnet_compiler.exe, 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp	false	Avira URL Cloud: safe	unknown
http://geoplugin.net/json.gprol	aspnet_compiler.exe, 00000004.00000002.814983139.0000000000F4B000.00000004.00000020.00020000.00000000.sdmp, aspnet_compiler.exe, 00000004.00000003.658074028.0000000000F4B000.00000004.00000020.00020000.00000000.sdmp	false	Avira URL Cloud: safe	unknown
http://geoplugin.net/json.gp1	aspnet_compiler.exe, 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp	false	Avira URL Cloud: safe	unknown
http://geoplugin.net/json.gp2C9DCABD6423689A465F00D4F	aspnet_compiler.exe, 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp	false	Avira URL Cloud: safe	unknown
http://geoplugin.net/json.gpf	aspnet_compiler.exe, 00000004.00000002.814983139.0000000000F4B000.00000004.00000020.00020000.00000000.sdmp, aspnet_compiler.exe, 00000004.00000003.658074028.0000000000F4B000.00000004.00000020.00020000.00000000.sdmp	false	0%, Virustotal, Browse Avira URL Cloud: safe	unknown
http://geoplugin.net/json.gp/C	file.exe, 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp, aspnet_compiler.exe, 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp	false	URL Reputation: safe	unknown
http://geoplugin.net/json.gpESS	aspnet_compiler.exe, 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp	false	Avira URL Cloud: safe	unknown
http://geoplugin.net/j	aspnet_compiler.exe, 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp	false	URL Reputation: safe	unknown

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	ASN	ASN Name	Malicious
185.65.134.166	unknown	Sweden	39351	ESAB-ASSE	true
178.237.33.50	geoplugin.net	Netherlands	8455	ATOM86-ASATOM86NL	false
45.128.234.54	unknown	United Kingdom	208861	RACKTECHRU	true

Private

IP
10.11.0.5
127.0.0.1

General Information

Joe Sandbox Version:	37.1.0 Beryl
Analysis ID:	882705
Start date and time:	2023-06-06 17:16:58 +02:00
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 9m 50s
Hypervisor based Inspection enabled:	false
Report type:	light
Cookbook file name:	default.jbs
Analysis system description:	Windows 10 64 bit v1803 with Office Professional Plus 2016, Chrome 104, IE 11, Adobe Reader DC 19, Java 8 Update 211
Number of analysed new started processes analysed:	5
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	HCA enabled EGA enabled HDC enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Sample file name:	file.exe
Detection:	MAL
Classification:	mal100.troj.spyw.expl.evad.winEXE@9/2@1/5
EGA Information:	Successful, ratio: 50%
HDC Information:	Successful, ratio: 83.7% (good quality ratio 79.2%) Quality average: 83.6% Quality standard deviation: 26.6%
HCA Information:	Successful, ratio: 71% Number of executed functions: 0 Number of non-executed functions: 0
Cookbook Comments:	Found application associated with file extension: .exe

Warnings

Excluded domains from analysis (whitelisted): ctldl.windowsupdate.com
Execution Graph export aborted for target file.exe, PID 3852 because it is empty
Report size getting too big, too many NtQueryValueKey calls found.

Process:	C:\Users\user\Desktop\file.exe
File Type:	CSV text
Category:	dropped
Size (bytes):	226
Entropy (8bit):	5.354940450065058
Encrypted:	false
SSDEEP:	6:Q3La/xw5DLIP12MUAvvR+uTL2wlAsDZiIv:Q3La/KDLI4MWuPTxAIv
MD5:	B10E37251C5B495643F331DB2EEC3394
SHA1:	25A5FFE4C2554C2B9A7C2794C9FE215998871193
SHA-256:	8A6B926C70F8DCFD915D68F167A1243B9DF7B9F642304F570CE584832D12102D
SHA-512:	296BC182515900934AA96E996FC48B565B7857801A07FEFA0D3D1E0C165981B266B084E344DB5B53041D1171F9C6708B4EE0D444906391C4FC073BCC23B92C37
Malicious:	true
Reputation:	high, very likely benign file
Preview:	1,"fusion","GAC",0..1,"WinRT","NotApp",1..3,"System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089","C:\Windows\assembly\NativeImages_v4.0.30319_64\System\10a17139182a9efd561f01fada9688a5\System.ni.dll",0..

C:\Users\user\AppData\Local\Microsoft\Windows\INetCache\IE\2WF3MMUU\json[1].json

Download File

Process:	C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
File Type:	JSON data
Category:	dropped
Size (bytes):	944
Entropy (8bit):	4.990870805423288
Encrypted:	false
SSDEEP:	12:tkEI7nd6CsGkMyGWKyMPVGADRPrmai+H0mGdAPORkoao9W7im51w7CSD9pF6RjSu:qHdRNuKyM8kzst7266m7RJaCo
MD5:	F415E2ACABAFB737E34EA7C1A7E9AE08
SHA1:	6CFEF6515535A0D3820C8F9B0C1882DC0D47F808
SHA-256:	97ABDE670EC722AA8D24DBB5DCA416ECF3AFC766FD627A4831E00E52855435D1
SHA-512:	B8DDB221554A642E08539C8E63D916773C26D37078AC3B4E3A96CA54C7F4391349FFD069E8B01C820B8E0D7968EE21CAF24AFFD07EA40B208214C68530BEB5E9
Malicious:	false
Preview:	{. "geoplugin_request":"102.129.143.77",. "geoplugin_status":200,. "geoplugin_delay":"1ms",. "geoplugin_credit":"Some of the returned data includes GeoLite data created by MaxMind, available from <a href='http:\/\/www.maxmind.com'>http:\/\/www.maxmind.com<\/a>.",. "geoplugin_city":"Hunenberg",. "geoplugin_region":"Zug",. "geoplugin_regionCode":"ZG",. "geoplugin_regionName":"Zug",. "geoplugin_areaCode":"",. "geoplugin_dmaCode":"",. "geoplugin_countryCode":"CH",. "geoplugin_countryName":"Switzerland",. "geoplugin_inEU":0,. "geoplugin_euVATrate":false,. "geoplugin_continentCode":"EU",. "geoplugin_continentName":"Europe",. "geoplugin_latitude":"47.173",. "geoplugin_longitude":"8.4204",. "geoplugin_locationAccuracyRadius":"20",. "geoplugin_timezone":"Europe\/Zurich",. "geoplugin_currencyCode":"CHF",. "geoplugin_currencySymbol":"CHF",. "geoplugin_currencySymbol_UTF8":"CHF",. "geoplugin_currencyConverter":0.9045.}

Static File Info

General

File type:	PE32+ executable (GUI) x86-64 Mono/.Net assembly, for MS Windows
Entropy (8bit):	7.504178499744059
TrID:	Win64 Executable GUI Net Framework (217006/5) 49.88% Win64 Executable GUI (202006/5) 46.43% Win64 Executable (generic) (12005/4) 2.76% Generic Win/DOS Executable (2004/3) 0.46% DOS Executable Generic (2002/1) 0.46%
File name:	file.exe
File size:	585216
MD5:	58a91896eaf6efe03ffe6ebb7b731792
SHA1:	e3ec7807b22e91e887dd1bc752c426041607216f
SHA256:	dc984e3a8de291d49bab5940b8f8047d2a7d8f0dab4231342c36edcee9cbb92e
SHA512:	9c764a0ec4d5f628fe998d90836fe39b2e112ebb21dc97e323c5ef0e50d6790ed36b5d89609c4aa4be2a5aaf6f4859e6e5a70150ce8b446868189417d9dffc23
SSDEEP:	12288:OBm+u0O5pDETlQ6ocFa59nBTDvdeLu3jaLWGaGAXd:uzAgQ6Y59hDvdeLuTwK
TLSH:	CEC4BF4A776AD46ED28D673BC6C50814A7A0DD82E30BDB4630C727994D0F3A7DF0929B
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..d...S.................0.................. ....@...... .......................@............`...@......@............... .....

File Icon


Icon Hash:	90cececece8e8eb0

Static PE Info

General

Entrypoint:	0x400000
Entrypoint Section:
Digitally signed:	false
Imagebase:	0x400000
Subsystem:	windows gui
Image File Characteristics:	EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, LARGE_ADDRESS_AWARE
DLL Characteristics:	HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Time Stamp:	0xEACDEA53 [Sun Oct 31 11:36:51 2094 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:	4
OS Version Minor:	0
File Version Major:	4
File Version Minor:	0
Subsystem Version Major:	4
Subsystem Version Minor:	0
Import Hash:

Entrypoint Preview

Instruction
dec ebp
pop edx
nop
add byte ptr [ebx], al
add byte ptr [eax], al
add byte ptr [eax+eax], al
add byte ptr [eax], al

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x92000	0x5a8	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x0	0x0
IMAGE_DIRECTORY_ENTRY_DEBUG	0x903f2	0x1c	.text
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x2000	0x48	.text
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x2000	0x8e440	0x8e600	False	0.7875963701712028	data	7.511239938683684	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.rsrc	0x92000	0x5a8	0x600	False	0.419921875	data	4.123920436980398	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country
RT_VERSION	0x920a0	0x31c	data
RT_MANIFEST	0x923bc	0x1ea	XML 1.0 document, Unicode text, UTF-8 (with BOM) text, with CRLF line terminators

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jun 6, 2023 17:18:06.283744097 CEST	49693	55433	192.168.2.4	185.65.134.166
Jun 6, 2023 17:18:09.289627075 CEST	49693	55433	192.168.2.4	185.65.134.166
Jun 6, 2023 17:18:15.290169954 CEST	49693	55433	192.168.2.4	185.65.134.166
Jun 6, 2023 17:18:27.316764116 CEST	49694	55433	192.168.2.4	10.11.0.5
Jun 6, 2023 17:18:30.322700024 CEST	49694	55433	192.168.2.4	10.11.0.5
Jun 6, 2023 17:18:36.354473114 CEST	49694	55433	192.168.2.4	10.11.0.5
Jun 6, 2023 17:18:48.361797094 CEST	49698	55433	192.168.2.4	45.128.234.54
Jun 6, 2023 17:18:48.391845942 CEST	55433	49698	45.128.234.54	192.168.2.4
Jun 6, 2023 17:18:48.392015934 CEST	49698	55433	192.168.2.4	45.128.234.54
Jun 6, 2023 17:18:48.413088083 CEST	49698	55433	192.168.2.4	45.128.234.54
Jun 6, 2023 17:18:48.452032089 CEST	55433	49698	45.128.234.54	192.168.2.4
Jun 6, 2023 17:18:48.496220112 CEST	49698	55433	192.168.2.4	45.128.234.54
Jun 6, 2023 17:18:48.522089958 CEST	55433	49698	45.128.234.54	192.168.2.4
Jun 6, 2023 17:18:48.536987066 CEST	49698	55433	192.168.2.4	45.128.234.54
Jun 6, 2023 17:18:48.625186920 CEST	55433	49698	45.128.234.54	192.168.2.4
Jun 6, 2023 17:18:48.625369072 CEST	49698	55433	192.168.2.4	45.128.234.54
Jun 6, 2023 17:18:48.693269014 CEST	55433	49698	45.128.234.54	192.168.2.4
Jun 6, 2023 17:18:49.297676086 CEST	55433	49698	45.128.234.54	192.168.2.4
Jun 6, 2023 17:18:49.301040888 CEST	49698	55433	192.168.2.4	45.128.234.54
Jun 6, 2023 17:18:49.348654032 CEST	55433	49698	45.128.234.54	192.168.2.4
Jun 6, 2023 17:18:49.402436972 CEST	49698	55433	192.168.2.4	45.128.234.54
Jun 6, 2023 17:18:49.540925980 CEST	49699	80	192.168.2.4	178.237.33.50
Jun 6, 2023 17:18:49.565812111 CEST	80	49699	178.237.33.50	192.168.2.4
Jun 6, 2023 17:18:49.565912008 CEST	49699	80	192.168.2.4	178.237.33.50
Jun 6, 2023 17:18:49.566293001 CEST	49699	80	192.168.2.4	178.237.33.50
Jun 6, 2023 17:18:49.598249912 CEST	80	49699	178.237.33.50	192.168.2.4
Jun 6, 2023 17:18:49.598454952 CEST	49699	80	192.168.2.4	178.237.33.50
Jun 6, 2023 17:18:49.665569067 CEST	49698	55433	192.168.2.4	45.128.234.54
Jun 6, 2023 17:18:49.732357979 CEST	55433	49698	45.128.234.54	192.168.2.4
Jun 6, 2023 17:18:50.597860098 CEST	80	49699	178.237.33.50	192.168.2.4
Jun 6, 2023 17:18:50.597980022 CEST	49699	80	192.168.2.4	178.237.33.50
Jun 6, 2023 17:19:07.185269117 CEST	55433	49698	45.128.234.54	192.168.2.4
Jun 6, 2023 17:19:07.188301086 CEST	49698	55433	192.168.2.4	45.128.234.54
Jun 6, 2023 17:19:07.265501022 CEST	55433	49698	45.128.234.54	192.168.2.4
Jun 6, 2023 17:19:37.214919090 CEST	55433	49698	45.128.234.54	192.168.2.4
Jun 6, 2023 17:19:37.218048096 CEST	49698	55433	192.168.2.4	45.128.234.54
Jun 6, 2023 17:19:37.287739038 CEST	55433	49698	45.128.234.54	192.168.2.4

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jun 6, 2023 17:18:49.507006884 CEST	52239	53	192.168.2.4	8.8.8.8
Jun 6, 2023 17:18:49.527475119 CEST	53	52239	8.8.8.8	192.168.2.4

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Jun 6, 2023 17:18:49.507006884 CEST	192.168.2.4	8.8.8.8	0xc59a	Standard query (0)	geoplugin.net	A (IP address)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Jun 6, 2023 17:18:49.527475119 CEST	8.8.8.8	192.168.2.4	0xc59a	No error (0)	geoplugin.net		178.237.33.50	A (IP address)	IN (0x0001)	false

HTTP Request Dependency Graph

geoplugin.net

Target ID:	0
Start time:	17:17:57
Start date:	06/06/2023
Path:	C:\Users\user\Desktop\file.exe
Wow64 process (32bit):	false
Commandline:	C:\Users\user\Desktop\file.exe
Imagebase:	0x177e97b0000
File size:	585216 bytes
MD5 hash:	58A91896EAF6EFE03FFE6EBB7B731792
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	.Net C# or VB.NET
Yara matches:	Rule: JoeSecurity_UACBypassusingCMSTP, Description: Yara detected UAC Bypass using CMSTP, Source: 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp, Author: Joe Security Rule: JoeSecurity_Remcos, Description: Yara detected Remcos RAT, Source: 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp, Author: Joe Security Rule: Windows_Trojan_Remcos_b296e965, Description: unknown, Source: 00000000.00000002.564591902.0000017793375000.00000004.00000800.00020000.00000000.sdmp, Author: unknown
Reputation:	low

Analysis Process: aspnet_compiler.exePID: 6780, Parent PID: 3852

General

Target ID:	1
Start time:	17:18:04
Start date:	06/06/2023
Path:	C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Imagebase:	0x60000
File size:	55400 bytes
MD5 hash:	17CC69238395DF61AAF483BCEF02E7C9
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Analysis Process: aspnet_compiler.exePID: 6768, Parent PID: 3852

General

Target ID:	2
Start time:	17:18:04
Start date:	06/06/2023
Path:	C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Imagebase:	0x250000
File size:	55400 bytes
MD5 hash:	17CC69238395DF61AAF483BCEF02E7C9
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Analysis Process: aspnet_compiler.exePID: 5828, Parent PID: 3852

General

Target ID:	3
Start time:	17:18:04
Start date:	06/06/2023
Path:	C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Imagebase:	0x420000
File size:	55400 bytes
MD5 hash:	17CC69238395DF61AAF483BCEF02E7C9
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high

Analysis Process: aspnet_compiler.exePID: 5796, Parent PID: 3852

General

Target ID:	4
Start time:	17:18:04
Start date:	06/06/2023
Path:	C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Wow64 process (32bit):	true
Commandline:	C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
Imagebase:	0x890000
File size:	55400 bytes
MD5 hash:	17CC69238395DF61AAF483BCEF02E7C9
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Yara matches:	Rule: JoeSecurity_Remcos, Description: Yara detected Remcos RAT, Source: 00000004.00000002.814760961.0000000000EC7000.00000004.00000020.00020000.00000000.sdmp, Author: Joe Security Rule: JoeSecurity_UACBypassusingCMSTP, Description: Yara detected UAC Bypass using CMSTP, Source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, Author: Joe Security Rule: JoeSecurity_Remcos, Description: Yara detected Remcos RAT, Source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, Author: Joe Security Rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM, Description: Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003), Source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, Author: ditekSHen Rule: Windows_Trojan_Remcos_b296e965, Description: unknown, Source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, Author: unknown Rule: REMCOS_RAT_variants, Description: unknown, Source: 00000004.00000002.814452926.0000000000400000.00000040.00000400.00020000.00000000.sdmp, Author: unknown
Reputation:	high

Disassembly

⊘No disassembly

Description:	Adversaries may directly interact with the native OS application programming interface (API) to execute behaviors. Native APIs provide a controlled means of calling low-level OS services within the kernel, such as those involving hardware/devices, memory, and processes.These native APIs are leveraged by the OS during system boot (when other system components are not yet initialized) as well as carrying out tasks and requests during routine operations.
Tactics:	Execution
Data Sources:	API monitoring, Loaded DLLs, Process monitoring, System calls
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries. These interfaces and languages provide ways of interacting with computer systems and are a common feature across many different platforms. Most systems come with some built-in command-line interface and scripting capabilities, for example, macOS and Linux distributions include some flavor of Unix Shell while Windows installations include the Windows Command Shell and PowerShell .
Tactics:	Execution
Data Sources:	PowerShell logs, Process command-line parameters, Process monitoring, Windows event logs
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may abuse the Windows service control manager to execute malicious commands or payloads. The Windows service control manager ( `services.exe` ) is an interface to manage and manipulate services.The service control manager is accessible to users via GUI components as well as system utilities such as `sc.exe` and Net .
Tactics:	Execution
Data Sources:	Process command-line parameters, Process monitoring, Windows Registry
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may create or modify Windows services to repeatedly execute malicious payloads as part of persistence. When Windows boots up, it starts programs or applications called services that perform background system functions.Windows service configuration information, including the file path to the service's executable or recovery programs/commands, is stored in the Windows Registry. Service configurations can be modified using utilities such as sc.exe and Reg .
Tactics:	Persistence, Privilege Escalation
Data Sources:	API monitoring, File monitoring, Process command-line parameters, Process monitoring, Windows Registry, Windows event logs
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may bypass UAC mechanisms to elevate process privileges on system. Windows User Account Control (UAC) allows a program to elevate its privileges (tracked as integrity levels ranging from low to high) to perform a task under administrator-level permissions, possibly by prompting the user for confirmation. The impact to the user ranges from denying the operation under high enforcement to allowing the user to perform the action if they are in the local administrators group and click through the prompt or allowing them to enter an administrator password to complete the action.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	Process command-line parameters, Process monitoring, Windows Registry
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may modify access tokens to operate under a different user or system security context to perform actions and bypass access controls. Windows uses access tokens to determine the ownership of a running process. A user can manipulate access tokens to make a running process appear as though it is the child of a different process or belongs to someone other than the user that started the process. When this occurs, the process also takes on the security context associated with the new token.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	API monitoring, Access tokens, Authentication logs, Process command-line parameters, Process monitoring, Windows event logs
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges. Process injection is a method of executing arbitrary code in the address space of a separate live process. Running code in the context of another process may allow access to the process's memory, system/network resources, and possibly elevated privileges. Execution via process injection may also evade detection from security products since the execution is masked under a legitimate process.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	API monitoring, DLL monitoring, File monitoring, Named Pipes, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may disable security tools to avoid possible detection of their tools and activities. This can take the form of killing security software or event logging processes, deleting Registry keys so that tools do not start at run time, or other methods to interfere with security tools scanning or reporting information.
Tactics:	Defense Evasion
Data Sources:	File monitoring, Process command-line parameters, Services, Windows Registry
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use Obfuscated Files or Information to hide artifacts of an intrusion from analysis. They may require separate mechanisms to decode or deobfuscate that information depending on how they intend to use it. Methods for doing that include built-in functionality of malware or by using utilities present on the system.
Tactics:	Defense Evasion
Data Sources:	File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata, Email gateway, Environment variable, File monitoring, Malware reverse engineering, Network intrusion detection system, Network protocol analysis, Process command-line parameters, Process monitoring, Process use of network, SSL/TLS inspection, Windows event logs
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may perform software packing or virtual machine software protection to conceal their code. Software packing is a method of compressing or encrypting an executable. Packing an executable changes the file signature in an attempt to avoid signature-based detection. Most decompression techniques decompress the executable code in memory. Virtual machine software protection translates an executable's original code into a special format that only a special virtual machine can run. A virtual machine is then called to run this code.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata
Platforms:	macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may modify file time attributes to hide new or changes to existing files. Timestomping is a technique that modifies the timestamps of a file (the modify, access, create, and change times), often to mimic files that are in the same folder. This is done, for example, on files that have been modified or created by the adversary so that they do not appear conspicuous to forensic investigators or file analysis tools.
Tactics:	Defense Evasion
Data Sources:	File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to manipulate features of their artifacts to make them appear legitimate or benign to users and/or security tools. Masquerading occurs when the name or location of an object, legitimate or malicious, is manipulated or abused for the sake of evading defenses and observation. This may include manipulating file metadata, tricking users into misidentifying the file type, and giving legitimate task or service names.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata, File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ various means to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core functions of the implant. They may also search for VME artifacts before dropping secondary or additional payloads. Adversaries may use the information learned from [Virtualization/Sandbox Evasion](https://attack.mitre.org/techniques/T1497) during automated discovery to shape follow-on behaviors.
Tactics:	Defense Evasion, Discovery
Data Sources:	Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password, from the operating system and software. Credentials can then be used to perform Lateral Movement and access restricted information.
Tactics:	Credential Access
Data Sources:	API monitoring, PowerShell logs, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use methods of capturing user input to obtain credentials or collect information. During normal system usage, users often provide credentials to various different locations, such as login pages/portals or system dialog boxes. Input capture mechanisms may be transparent to the user (e.g. Credential API Hooking ) or rely on deceiving the user into providing input into what they believe to be a genuine service (e.g. Web Portal Capture ).
Tactics:	Collection, Credential Access
Data Sources:	API monitoring, Binary file metadata, DLL monitoring, Kernel drivers, Loaded DLLs, PowerShell logs, Process command-line parameters, Process monitoring, User interface, Windows Registry, Windows event logs
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may search local file systems and remote file shares for files containing insecurely stored credentials. These can be files created by users to store their own credentials, shared credential stores for a group of individuals, configuration files containing passwords for a system or service, or source code/binary files containing embedded passwords.
Tactics:	Credential Access
Data Sources:	File monitoring, Process command-line parameters
Platforms:	AWS, Azure, GCP, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may gather the system time and/or time zone from a local or remote system. The system time is set and stored by the Windows Time Service within a domain to maintain time synchronization between systems and services in an enterprise network.
Tactics:	Discovery
Data Sources:	API monitoring, Process command-line parameters, Process monitoring
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of accounts on a system or within an environment. This information can help adversaries determine which accounts exist to aid in follow-on behavior.
Tactics:	Discovery
Data Sources:	API monitoring, Azure activity logs, Office 365 account logs, Process command-line parameters, Process monitoring
Platforms:	AWS, Azure, Azure AD, GCP, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may try to get information about registered services. Commands that may obtain information about services using operating system utilities are "sc," "tasklist /svc" using Tasklist , and "net start" using Net , but adversaries may also use other tools as well. Adversaries may use the information from System Service Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Process command-line parameters, Process monitoring
Platforms:	Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report file.exe

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Threat Intel

Malware Configuration

Threatname: Remcos

Yara Signatures

Initial Sample

Memory Dumps

Unpacked PEs

Sigma Signatures

Stealing of Sensitive Information

Snort Signatures

Joe Sandbox Signatures

AV Detection

Cryptography

Exploits

Privilege Escalation

Compliance

Spreading

Networking

Key, Mouse, Clipboard, Microphone and Screen Capturing

E-Banking Fraud

System Summary

Data Obfuscation

Persistence and Installation Behavior

Boot Survival

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Anti Debugging

HIPS / PFW / Operating System Protection Evasion

Language, Device and Operating System Detection

Stealing of Sensitive Information

Remote Access Functionality

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

Contacted URLs

URLs from Memory and Binaries

World Map of Contacted IPs

Public IPs

Private

General Information

Warnings

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

C:\Users\user\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\file.exe.log

C:\Users\user\AppData\Local\Microsoft\Windows\INetCache\IE\2WF3MMUU\json[1].json

Static File Info

General

File Icon

Static PE Info

General

Windows Analysis Report
file.exe

Description:	Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system. Adversaries may use the information from File and Directory Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, GCP, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get information about running processes on a system. Information obtained could be used to gain an understanding of common software/applications running on systems within the network. Adversaries may use the information from Process Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	API monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to identify the primary user, currently logged in user, set of users that commonly uses a system, or whether a user is actively using the system. They may do this, for example, by retrieving account usernames or by using OS Credential Dumping . The information may be collected in a number of different ways using other Discovery techniques, because user and username details are prevalent throughout a system and include running process ownership, file/directory ownership, session information, and system logs. Adversaries may use the information from [System Owner/User Discovery](https://attack.mitre.org/techniques/T1033) during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may compress and/or encrypt data that is collected prior to exfiltration. Compressing the data can help to obfuscate the collected data and minimize the amount of data sent over the network. Encryption can be used to hide information that is being exfiltrated from detection or make exfiltration less conspicuous upon inspection by a defender.
Tactics:	Collection
Data Sources:	Binary file metadata, File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may collect data stored in the clipboard from users copying information within or between applications.
Tactics:	Collection
Data Sources:	API monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may transfer tools or other files from an external system into a compromised environment. Files may be copied from an external adversary controlled system through the command and control channel to bring tools into the victim network or through alternate protocols with another tool such as FTP. Files can also be copied over on Mac and Linux with native tools like scp, rsync, and sftp.
Tactics:	Command and Control
Data Sources:	File monitoring, Netflow/Enclave netflow, Network protocol analysis, Packet capture, Process command-line parameters, Process monitoring, Process use of network
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Malware reverse engineering, Netflow/Enclave netflow, Packet capture, Process monitoring, Process use of network, SSL/TLS inspection
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using a protocol and port paring that are typically not associated. For example, HTTPS over port 8088or port 587as opposed to the traditional port 443. Adversaries may make changes to the standard port used by a protocol to bypass filtering or muddle analysis/parsing of network data.
Tactics:	Command and Control
Data Sources:	Netflow/Enclave netflow, Packet capture, Process monitoring, Process use of network
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use a non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Host network interface, Netflow/Enclave netflow, Network intrusion detection system, Network protocol analysis, Packet capture, Process use of network
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre