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Windows Analysis Report
Stub.exe

Overview

General Information

Sample Name:	Stub.exe
Analysis ID:	778238
MD5:	da5c4dbbc80ca5da70237ef8bc281476
SHA1:	c6689884e4bf3360fceacbdaff09d211cef3a49d
SHA256:	4981bda443713f5cecb9df4d163cd62f1bd038cb897895bb2f81015796676371
Tags:	AsyncRATexe
Infos:

Detection

AsyncRAT

Score:	92
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Yara detected AsyncRAT

Snort IDS alert for network traffic

Yara detected Generic Downloader

C2 URLs / IPs found in malware configuration

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Machine Learning detection for sample

.NET source code contains potential unpacker

Uses 32bit PE files

Found a high number of Window / User specific system calls (may be a loop to detect user behavior)

AV process strings found (often used to terminate AV products)

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

Yara signature match

Antivirus or Machine Learning detection for unpacked file

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

May sleep (evasive loops) to hinder dynamic analysis

Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)

Detected TCP or UDP traffic on non-standard ports

Detected potential crypto function

Creates a window with clipboard capturing capabilities

Monitors certain registry keys / values for changes (often done to protect autostart functionality)

Contains long sleeps (>= 3 min)

Enables debug privileges

Classification

Process Tree

System is w10x64

Stub.exe (PID: 5484 cmdline: C:\Users\user\Desktop\Stub.exe MD5: DA5C4DBBC80CA5DA70237EF8BC281476)

cleanup

Malware Configuration

Threatname: AsyncRAT

{"Server": "egrh.linkpc.net", "Port": "5505", "Version": "| Edit 3LOSH RAT", "MutexName": "AsyncMutex_6SI8OkPnk", "Autorun": "false", "Group": "true"}

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
Stub.exe	JoeSecurity_AsyncRAT	Yara detected AsyncRAT	Joe Security
Stub.exe	JoeSecurity_GenericDownloader_1	Yara detected Generic Downloader	Joe Security
Stub.exe	INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse	Detects file containing reversed ASEP Autorun registry keys	ditekSHen	0xd0e6:$s1: nuR\noisreVtnerruC\swodniW\tfosorciM
Stub.exe	Windows_Trojan_Asyncrat_11a11ba1	unknown	unknown	0xd054:$a1: /c schtasks /create /f /sc onlogon /rl highest /tn " 0xec38:$a2: Stub.exe 0xecc8:$a2: Stub.exe 0x940c:$a3: get_ActivatePong 0xd26c:$a4: vmware 0xd0e4:$a5: \nuR\noisreVtnerruC\swodniW\tfosorciM\erawtfoS 0xa49d:$a6: get_SslClient

PCAP (Network Traffic)

Source	Rule	Description	Author	Strings
dump.pcap	MALWARE_Win_AsyncRAT	Detects AsyncRAT	ditekSHen	0x3ea:$x1: AsyncRAT 0x428:$x1: AsyncRAT

Memory Dumps

Source	Rule	Description	Author	Strings
00000000.00000002.510364745.0000000004966000.00000004.00000800.00020000.00000000.sdmp	MALWARE_Win_AsyncRAT	Detects AsyncRAT	ditekSHen	0xa7bb:$x1: AsyncRAT 0xa7f9:$x1: AsyncRAT
00000000.00000003.474031615.0000000000633000.00000004.00000020.00020000.00000000.sdmp	MALWARE_Win_AsyncRAT	Detects AsyncRAT	ditekSHen	0x5a7:$x1: AsyncRAT 0x5e5:$x1: AsyncRAT
00000000.00000002.505594690.0000000000633000.00000004.00000020.00020000.00000000.sdmp	MALWARE_Win_AsyncRAT	Detects AsyncRAT	ditekSHen	0x5a7:$x1: AsyncRAT 0x5e5:$x1: AsyncRAT
00000000.00000000.237566508.0000000000052000.00000002.00000001.01000000.00000003.sdmp	JoeSecurity_AsyncRAT	Yara detected AsyncRAT	Joe Security
00000000.00000000.237566508.0000000000052000.00000002.00000001.01000000.00000003.sdmp	INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse	Detects file containing reversed ASEP Autorun registry keys	ditekSHen	0xcee6:$s1: nuR\noisreVtnerruC\swodniW\tfosorciM
00000000.00000003.384798750.000000000061D000.00000004.00000020.00020000.00000000.sdmp	MALWARE_Win_AsyncRAT	Detects AsyncRAT	ditekSHen	0x165a7:$x1: AsyncRAT 0x165e5:$x1: AsyncRAT 0x232d8:$s4: Stub.exe
00000000.00000003.432092160.0000000000631000.00000004.00000020.00020000.00000000.sdmp	MALWARE_Win_AsyncRAT	Detects AsyncRAT	ditekSHen	0x25a7:$x1: AsyncRAT 0x25e5:$x1: AsyncRAT
00000000.00000002.508243418.0000000002511000.00000004.00000800.00020000.00000000.sdmp	JoeSecurity_AsyncRAT	Yara detected AsyncRAT	Joe Security
00000000.00000002.508243418.0000000002511000.00000004.00000800.00020000.00000000.sdmp	MALWARE_Win_AsyncRAT	Detects AsyncRAT	ditekSHen	0x37db3:$x1: AsyncRAT 0x37df1:$x1: AsyncRAT 0x2c6:$s4: Stub.exe 0x42c:$s4: Stub.exe 0x117ee:$s4: Stub.exe 0x3b1ba:$s4: Stub.exe
Process Memory Space: Stub.exe PID: 5484	JoeSecurity_AsyncRAT	Yara detected AsyncRAT	Joe Security
Process Memory Space: Stub.exe PID: 5484	INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse	Detects file containing reversed ASEP Autorun registry keys	ditekSHen	0x4ca26:$s1: nuR\noisreVtnerruC\swodniW\tfosorciM
Process Memory Space: Stub.exe PID: 5484	MALWARE_Win_AsyncRAT	Detects AsyncRAT	ditekSHen	0x87a7:$x1: AsyncRAT 0x87d9:$x1: AsyncRAT 0x430e3:$x1: AsyncRAT 0x43115:$x1: AsyncRAT 0x4312f:$x1: AsyncRAT 0x46e7:$s4: Stub.exe 0x56d0:$s4: Stub.exe 0x6e91:$s4: Stub.exe 0xaeff:$s4: Stub.exe 0xb1cc:$s4: Stub.exe 0xb30b:$s4: Stub.exe 0xc946:$s4: Stub.exe 0xddca:$s4: Stub.exe 0x24018:$s4: Stub.exe 0x2682d:$s4: Stub.exe 0x2770e:$s4: Stub.exe 0x2c072:$s4: Stub.exe 0x2c093:$s4: Stub.exe 0x33914:$s4: Stub.exe 0x348be:$s4: Stub.exe 0x348de:$s4: Stub.exe
Click to see the 7 entries

Unpacked PEs

Source	Rule	Description	Author	Strings
0.0.Stub.exe.50000.0.unpack	JoeSecurity_AsyncRAT	Yara detected AsyncRAT	Joe Security
0.0.Stub.exe.50000.0.unpack	JoeSecurity_GenericDownloader_1	Yara detected Generic Downloader	Joe Security
0.0.Stub.exe.50000.0.unpack	INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse	Detects file containing reversed ASEP Autorun registry keys	ditekSHen	0xd0e6:$s1: nuR\noisreVtnerruC\swodniW\tfosorciM
0.0.Stub.exe.50000.0.unpack	Windows_Trojan_Asyncrat_11a11ba1	unknown	unknown	0xd054:$a1: /c schtasks /create /f /sc onlogon /rl highest /tn " 0xec38:$a2: Stub.exe 0xecc8:$a2: Stub.exe 0x940c:$a3: get_ActivatePong 0xd26c:$a4: vmware 0xd0e4:$a5: \nuR\noisreVtnerruC\swodniW\tfosorciM\erawtfoS 0xa49d:$a6: get_SslClient

Snort Signatures

ET TROJAN Observed Malicious SSL Cert (AsyncRAT Server) - Source IP: 142.202.240.108 - Destination IP: 192.168.2.3

Timestamp:	142.202.240.108192.168.2.35505496892030673 01/05/23-09:16:11.192042
SID:	2030673
Source Port:	5505
Destination Port:	49689
Protocol:	TCP
Classtype:	A Network Trojan was detected

ET TROJAN Generic AsyncRAT Style SSL Cert - Source IP: 142.202.240.108 - Destination IP: 192.168.2.3

Timestamp:	142.202.240.108192.168.2.35505496892035595 01/05/23-09:16:11.192042
SID:	2035595
Source Port:	5505
Destination Port:	49689
Protocol:	TCP
Classtype:	A Network Trojan was detected

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: Stub.exe

Avira: detected

Machine Learning detection for sample

Source: Stub.exe

Joe Sandbox ML: detected

Source: 0.0.Stub.exe.50000.0.unpack

Avira: Label: TR/Dropper.Gen

Source: 00000000.00000002.508243418.0000000002511000.00000004.00000800.00020000.00000000.sdmp

Malware Configuration Extractor: AsyncRAT {"Server": "egrh.linkpc.net", "Port": "5505", "Version": "| Edit 3LOSH RAT", "MutexName": "AsyncMutex_6SI8OkPnk", "Autorun": "false", "Group": "true"}

Source: Stub.exe

Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE

Source: Stub.exe

Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Networking

Snort IDS alert for network traffic

Source: Traffic	Snort IDS: 2035595 ET TROJAN Generic AsyncRAT Style SSL Cert 142.202.240.108:5505 -> 192.168.2.3:49689
Source: Traffic	Snort IDS: 2030673 ET TROJAN Observed Malicious SSL Cert (AsyncRAT Server) 142.202.240.108:5505 -> 192.168.2.3:49689

Yara detected Generic Downloader

Source: Yara match	File source: Stub.exe, type: SAMPLE
Source: Yara match	File source: 0.0.Stub.exe.50000.0.unpack, type: UNPACKEDPE

C2 URLs / IPs found in malware configuration

Source: Malware configuration extractor

URLs: egrh.linkpc.net

Source: global traffic

TCP traffic: 192.168.2.3:49689 -> 142.202.240.108:5505

Source: Stub.exe, 00000000.00000002.510490105.00000000049AD000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: http://crl.globalsign.net/root-r2.crl0
Source: Stub.exe, 00000000.00000003.256955733.00000000006A5000.00000004.00000020.00020000.00000000.sdmp, Stub.exe, 00000000.00000002.510364745.0000000004966000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: http://ctldl.windowsupdate.com/
Source: Stub.exe, 00000000.00000003.256955733.00000000006A5000.00000004.00000020.00020000.00000000.sdmp, Stub.exe, 00000000.00000003.257540314.00000000006A9000.00000004.00000020.00020000.00000000.sdmp, Stub.exe, 00000000.00000003.257743735.00000000006A9000.00000004.00000020.00020000.00000000.sdmp	String found in binary or memory: http://ctldl.windowsupdate.com/G
Source: 77EC63BDA74BD0D0E0426DC8F80085060.0.dr	String found in binary or memory: http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
Source: Stub.exe, 00000000.00000003.257368805.00000000049B9000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab33
Source: Stub.exe, 00000000.00000002.508243418.0000000002511000.00000004.00000800.00020000.00000000.sdmp	String found in binary or memory: http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name

Source: unknown

DNS traffic detected: queries for: egrh.linkpc.net

Key, Mouse, Clipboard, Microphone and Screen Capturing

Yara detected AsyncRAT

Source: Yara match	File source: Stub.exe, type: SAMPLE
Source: Yara match	File source: 0.0.Stub.exe.50000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 00000000.00000000.237566508.0000000000052000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.508243418.0000000002511000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: Stub.exe PID: 5484, type: MEMORYSTR

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

Window created: window name: CLIPBRDWNDCLASS

System Summary

Malicious sample detected (through community Yara rule)

Source: Stub.exe, type: SAMPLE	Matched rule: Detects file containing reversed ASEP Autorun registry keys Author: ditekSHen
Source: Stub.exe, type: SAMPLE	Matched rule: Windows_Trojan_Asyncrat_11a11ba1 Author: unknown
Source: dump.pcap, type: PCAP	Matched rule: Detects AsyncRAT Author: ditekSHen
Source: 0.0.Stub.exe.50000.0.unpack, type: UNPACKEDPE	Matched rule: Detects file containing reversed ASEP Autorun registry keys Author: ditekSHen
Source: 0.0.Stub.exe.50000.0.unpack, type: UNPACKEDPE	Matched rule: Windows_Trojan_Asyncrat_11a11ba1 Author: unknown
Source: 00000000.00000002.510364745.0000000004966000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY	Matched rule: Detects AsyncRAT Author: ditekSHen
Source: 00000000.00000003.474031615.0000000000633000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY	Matched rule: Detects AsyncRAT Author: ditekSHen
Source: 00000000.00000002.505594690.0000000000633000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY	Matched rule: Detects AsyncRAT Author: ditekSHen
Source: 00000000.00000000.237566508.0000000000052000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY	Matched rule: Detects file containing reversed ASEP Autorun registry keys Author: ditekSHen
Source: 00000000.00000003.384798750.000000000061D000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY	Matched rule: Detects AsyncRAT Author: ditekSHen
Source: 00000000.00000003.432092160.0000000000631000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY	Matched rule: Detects AsyncRAT Author: ditekSHen
Source: 00000000.00000002.508243418.0000000002511000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY	Matched rule: Detects AsyncRAT Author: ditekSHen
Source: Process Memory Space: Stub.exe PID: 5484, type: MEMORYSTR	Matched rule: Detects file containing reversed ASEP Autorun registry keys Author: ditekSHen
Source: Process Memory Space: Stub.exe PID: 5484, type: MEMORYSTR	Matched rule: Detects AsyncRAT Author: ditekSHen

Source: Stub.exe

Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE

Source: Stub.exe, type: SAMPLE	Matched rule: INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse author = ditekSHen, description = Detects file containing reversed ASEP Autorun registry keys
Source: Stub.exe, type: SAMPLE	Matched rule: Windows_Trojan_Asyncrat_11a11ba1 reference_sample = fe09cd1d13b87c5e970d3cbc1ebc02b1523c0a939f961fc02c1395707af1c6d1, os = windows, severity = x86, creation_date = 2021-08-05, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Asyncrat, fingerprint = 715ede969076cd413cebdfcf0cdda44e3a6feb5343558f18e656f740883b41b8, id = 11a11ba1-c178-4415-9c09-45030b500f50, last_modified = 2021-10-04
Source: dump.pcap, type: PCAP	Matched rule: MALWARE_Win_AsyncRAT author = ditekSHen, description = Detects AsyncRAT
Source: 0.0.Stub.exe.50000.0.unpack, type: UNPACKEDPE	Matched rule: INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse author = ditekSHen, description = Detects file containing reversed ASEP Autorun registry keys
Source: 0.0.Stub.exe.50000.0.unpack, type: UNPACKEDPE	Matched rule: Windows_Trojan_Asyncrat_11a11ba1 reference_sample = fe09cd1d13b87c5e970d3cbc1ebc02b1523c0a939f961fc02c1395707af1c6d1, os = windows, severity = x86, creation_date = 2021-08-05, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Asyncrat, fingerprint = 715ede969076cd413cebdfcf0cdda44e3a6feb5343558f18e656f740883b41b8, id = 11a11ba1-c178-4415-9c09-45030b500f50, last_modified = 2021-10-04
Source: 00000000.00000002.510364745.0000000004966000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY	Matched rule: MALWARE_Win_AsyncRAT author = ditekSHen, description = Detects AsyncRAT
Source: 00000000.00000003.474031615.0000000000633000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY	Matched rule: MALWARE_Win_AsyncRAT author = ditekSHen, description = Detects AsyncRAT
Source: 00000000.00000002.505594690.0000000000633000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY	Matched rule: MALWARE_Win_AsyncRAT author = ditekSHen, description = Detects AsyncRAT
Source: 00000000.00000000.237566508.0000000000052000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY	Matched rule: INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse author = ditekSHen, description = Detects file containing reversed ASEP Autorun registry keys
Source: 00000000.00000003.384798750.000000000061D000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY	Matched rule: MALWARE_Win_AsyncRAT author = ditekSHen, description = Detects AsyncRAT
Source: 00000000.00000003.432092160.0000000000631000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY	Matched rule: MALWARE_Win_AsyncRAT author = ditekSHen, description = Detects AsyncRAT
Source: 00000000.00000002.508243418.0000000002511000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY	Matched rule: MALWARE_Win_AsyncRAT author = ditekSHen, description = Detects AsyncRAT
Source: Process Memory Space: Stub.exe PID: 5484, type: MEMORYSTR	Matched rule: INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse author = ditekSHen, description = Detects file containing reversed ASEP Autorun registry keys
Source: Process Memory Space: Stub.exe PID: 5484, type: MEMORYSTR	Matched rule: MALWARE_Win_AsyncRAT author = ditekSHen, description = Detects AsyncRAT

Source: Stub.exe, 00000000.00000002.510626345.0000000004BE9000.00000004.00000010.00020000.00000000.sdmp

Binary or memory string: OriginalFilenameUNKNOWN_FILET vs Stub.exe

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

Code function: 0_2_0098C51C

Source: Stub.exe

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

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

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

Source: Stub.exe	Static file information: TRID: Win32 Executable (generic) Net Framework (10011505/4) 49.83%
Source: C:\Users\user\Desktop\Stub.exe	Section loaded: C:\Windows\assembly\NativeImages_v4.0.30319_32\mscorlib\a152fe02a317a77aeee36903305e8ba6\mscorlib.ni.dll

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

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CF4CC405-E2C5-4DDD-B3CE-5E7582D8C9FA}\InprocServer32

Source: Stub.exe, eGlSQbxmQMrQhm/plUQqHPHKqQ.cs	Base64 encoded string: 'laukwBCTjYRoqHFCmAt9kjzyfCkFf18LOnFD55PbbIYaigees0liP+EQECnHEGgsV/dSMIxuUxZJha8SsnKbpA==', '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', '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
Source: 0.0.Stub.exe.50000.0.unpack, eGlSQbxmQMrQhm/plUQqHPHKqQ.cs	Base64 encoded string: 'laukwBCTjYRoqHFCmAt9kjzyfCkFf18LOnFD55PbbIYaigees0liP+EQECnHEGgsV/dSMIxuUxZJha8SsnKbpA==', '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', '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

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

Mutant created: \Sessions\1\BaseNamedObjects\AsyncMutex_6SI8OkPnk

Source: classification engine

Classification label: mal92.troj.evad.winEXE@1/2@1/1

Source: C:\Users\user\Desktop\Stub.exe	File read: C:\Windows\System32\drivers\etc\hosts	Jump to behavior
Source: C:\Users\user\Desktop\Stub.exe	File read: C:\Windows\System32\drivers\etc\hosts	Jump to behavior
Source: C:\Users\user\Desktop\Stub.exe	File read: C:\Windows\System32\drivers\etc\hosts	Jump to behavior

Source: Stub.exe, fPDRbydmMY/ZawhPWlnTeTuyN.cs	Security API names: System.Security.Principal.WindowsIdentity System.Security.Principal.WindowsIdentity::GetCurrent()
Source: Stub.exe, fPDRbydmMY/ZawhPWlnTeTuyN.cs	Security API names: System.Boolean System.Security.Principal.WindowsPrincipal::IsInRole(System.Security.Principal.WindowsBuiltInRole)
Source: 0.0.Stub.exe.50000.0.unpack, fPDRbydmMY/ZawhPWlnTeTuyN.cs	Security API names: System.Security.Principal.WindowsIdentity System.Security.Principal.WindowsIdentity::GetCurrent()
Source: 0.0.Stub.exe.50000.0.unpack, fPDRbydmMY/ZawhPWlnTeTuyN.cs	Security API names: System.Boolean System.Security.Principal.WindowsPrincipal::IsInRole(System.Security.Principal.WindowsBuiltInRole)

Source: Stub.exe

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR

Source: Stub.exe

Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Data Obfuscation

.NET source code contains potential unpacker

Source: Stub.exe, ZpwfMOVejXXJG/lzYzeBBbDjkdfho.cs	.Net Code: fbPMNBgcthZje System.Reflection.Assembly System.Reflection.Assembly::Load(System.Byte[])
Source: Stub.exe, ZpwfMOVejXXJG/lzYzeBBbDjkdfho.cs	.Net Code: QCOFEyuSJQQB System.Reflection.Assembly System.AppDomain::Load(System.Byte[])
Source: Stub.exe, ZpwfMOVejXXJG/lzYzeBBbDjkdfho.cs	.Net Code: CeqMJMrYMRORV System.Reflection.Assembly System.AppDomain::Load(System.Byte[])
Source: 0.0.Stub.exe.50000.0.unpack, ZpwfMOVejXXJG/lzYzeBBbDjkdfho.cs	.Net Code: fbPMNBgcthZje System.Reflection.Assembly System.Reflection.Assembly::Load(System.Byte[])
Source: 0.0.Stub.exe.50000.0.unpack, ZpwfMOVejXXJG/lzYzeBBbDjkdfho.cs	.Net Code: QCOFEyuSJQQB System.Reflection.Assembly System.AppDomain::Load(System.Byte[])
Source: 0.0.Stub.exe.50000.0.unpack, ZpwfMOVejXXJG/lzYzeBBbDjkdfho.cs	.Net Code: CeqMJMrYMRORV System.Reflection.Assembly System.AppDomain::Load(System.Byte[])

Boot Survival

Yara detected AsyncRAT

Source: Yara match	File source: Stub.exe, type: SAMPLE
Source: Yara match	File source: 0.0.Stub.exe.50000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 00000000.00000000.237566508.0000000000052000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.508243418.0000000002511000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: Stub.exe PID: 5484, type: MEMORYSTR

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

Registry key monitored for changes: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot

Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\Stub.exe	Process information set: NOOPENFILEERRORBOX

Malware Analysis System Evasion

Yara detected AsyncRAT

Source: Yara match	File source: Stub.exe, type: SAMPLE
Source: Yara match	File source: 0.0.Stub.exe.50000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 00000000.00000000.237566508.0000000000052000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.508243418.0000000002511000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: Stub.exe PID: 5484, type: MEMORYSTR

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Source: Stub.exe

Binary or memory string: SBIEDLL.DLLM\B(BC1|[13])[A-ZA-HJ-NP-Z0-9]{26,45}\B

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

Window / User API: threadDelayed 9730

Source: C:\Users\user\Desktop\Stub.exe TID: 5740	Thread sleep time: -30000s >= -30000s
Source: C:\Users\user\Desktop\Stub.exe TID: 6036	Thread sleep time: -922337203685477s >= -30000s

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

Thread delayed: delay time: 922337203685477

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

Process information queried: ProcessInformation

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

Thread delayed: delay time: 922337203685477

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

File Volume queried: C:\ FullSizeInformation

Source: Stub.exe	Binary or memory string: vmware
Source: Stub.exe, 00000000.00000002.511377724.0000000005DD0000.00000004.00000800.00020000.00000000.sdmp	Binary or memory string: Hyper-V RAWM
Source: Stub.exe, 00000000.00000002.511377724.0000000005DD0000.00000004.00000800.00020000.00000000.sdmp, Stub.exe, 00000000.00000002.510401327.000000000497F000.00000004.00000800.00020000.00000000.sdmp	Binary or memory string: Hyper-V RAW

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

Process token adjusted: Debug

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

Memory allocated: page read and write | page guard

Source: Stub.exe, 00000000.00000002.508379142.000000000257D000.00000004.00000800.00020000.00000000.sdmp, Stub.exe, 00000000.00000002.508407256.0000000002588000.00000004.00000800.00020000.00000000.sdmp, Stub.exe, 00000000.00000002.508461952.00000000025AB000.00000004.00000800.00020000.00000000.sdmp

Binary or memory string: Program Manager

Source: C:\Users\user\Desktop\Stub.exe	Queries volume information: C:\Users\user\Desktop\Stub.exe VolumeInformation
Source: C:\Users\user\Desktop\Stub.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll VolumeInformation
Source: C:\Users\user\Desktop\Stub.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll VolumeInformation
Source: C:\Users\user\Desktop\Stub.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Accessibility\v4.0_4.0.0.0__b03f5f7f11d50a3a\Accessibility.dll VolumeInformation
Source: C:\Users\user\Desktop\Stub.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.VisualBasic\v4.0_10.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualBasic.dll VolumeInformation
Source: C:\Users\user\Desktop\Stub.exe	Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Management\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Management.dll VolumeInformation

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

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

Lowering of HIPS / PFW / Operating System Security Settings

Yara detected AsyncRAT

Source: Yara match	File source: Stub.exe, type: SAMPLE
Source: Yara match	File source: 0.0.Stub.exe.50000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 00000000.00000000.237566508.0000000000052000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.508243418.0000000002511000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: Stub.exe PID: 5484, type: MEMORYSTR

Source: Stub.exe, 00000000.00000002.510401327.000000000497F000.00000004.00000800.00020000.00000000.sdmp, Stub.exe, 00000000.00000003.259928413.0000000005EC8000.00000004.00000800.00020000.00000000.sdmp

Binary or memory string: %ProgramFiles%\Windows Defender\MsMpeng.exe

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

WMI Queries: IWbemServices::ExecQuery - root\SecurityCenter2 : Select * from AntivirusProduct

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 Windows Management Instrumentation	1 Scheduled Task/Job	1 Process Injection	1 Disable or Modify Tools	OS Credential Dumping	1 Query Registry	Remote Services	1 Archive Collected Data	Exfiltration Over Other Network Medium	1 Encrypted Channel	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
Default Accounts	1 Scheduled Task/Job	Boot or Logon Initialization Scripts	1 Scheduled Task/Job	21 Virtualization/Sandbox Evasion	LSASS Memory	121 Security Software Discovery	Remote Desktop Protocol	1 Clipboard Data	Exfiltration Over Bluetooth	1 Non-Standard Port	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	1 Process Injection	Security Account Manager	2 Process Discovery	SMB/Windows Admin Shares	Data from Network Shared Drive	Automated Exfiltration	1 Non-Application Layer Protocol	Exploit SS7 to Track Device Location	Obtain Device Cloud Backups	Delete Device Data
Local Accounts	At (Windows)	Logon Script (Mac)	Logon Script (Mac)	11 Obfuscated Files or Information	NTDS	21 Virtualization/Sandbox Evasion	Distributed Component Object Model	Input Capture	Scheduled Transfer	11 Application Layer Protocol	SIM Card Swap		Carrier Billing Fraud
Cloud Accounts	Cron	Network Logon Script	Network Logon Script	11 Software Packing	LSA Secrets	1 Application Window Discovery	SSH	Keylogging	Data Transfer Size Limits	Fallback Channels	Manipulate Device Communication		Manipulate App Store Rankings or Ratings
Replication Through Removable Media	Launchd	Rc.common	Rc.common	Steganography	Cached Domain Credentials	1 Remote System 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	Compile After Delivery	DCSync	13 System Information Discovery	Windows Remote Management	Web Portal Capture	Exfiltration Over Alternative Protocol	Commonly Used Port	Rogue Wi-Fi Access Points		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
Stub.exe	100%	Avira	TR/Dropper.Gen
Stub.exe	100%	Joe Sandbox ML

Dropped Files

⊘No Antivirus matches

Unpacked PE Files

Source	Detection	Scanner	Label	Link	Download
0.0.Stub.exe.50000.0.unpack	100%	Avira	TR/Dropper.Gen		Download File

Name	IP	Active	Malicious	Antivirus Detection	Reputation
egrh.linkpc.net	142.202.240.108	true	false		high
windowsupdatebg.s.llnwi.net	41.63.96.128	true	false		unknown

Contacted URLs

Name	Malicious	Antivirus Detection	Reputation
egrh.linkpc.net	false		high

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name	Stub.exe, 00000000.00000002.508243418.0000000002511000.00000004.00000800.00020000.00000000.sdmp	false		high

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	Flag	ASN	ASN Name	Malicious
142.202.240.108	egrh.linkpc.net	Reserved		14315	1GSERVERSUS	false

General Information

Joe Sandbox Version:	36.0.0 Rainbow Opal
Analysis ID:	778238
Start date and time:	2023-01-05 09:15:14 +01:00
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 4m 55s
Hypervisor based Inspection enabled:	false
Report type:	light
Sample file name:	Stub.exe
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:	12
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
Detection:	MAL
Classification:	mal92.troj.evad.winEXE@1/2@1/1
EGA Information:	Successful, ratio: 100%
HDC Information:	Failed
HCA Information:	Successful, ratio: 100% Number of executed functions: 0 Number of non-executed functions: 0
Cookbook Comments:	Found application associated with file extension: .exe

Warnings

Exclude process from analysis (whitelisted): MpCmdRun.exe, SgrmBroker.exe, conhost.exe, svchost.exe
TCP Packets have been reduced to 100
Excluded IPs from analysis (whitelisted): 8.238.88.254, 8.238.85.126, 8.253.207.121, 8.248.113.254, 8.238.85.254, 209.197.3.8, 93.184.221.240
Excluded domains from analysis (whitelisted): www.bing.com, fg.download.windowsupdate.com.c.footprint.net, fs.microsoft.com, wu.ec.azureedge.net, bg.apr-52dd2-0503.edgecastdns.net, cs11.wpc.v0cdn.net, hlb.apr-52dd2-0.edgecastdns.net, ctldl.windowsupdate.com, cds.d2s7q6s2.hwcdn.net, wu-bg-shim.trafficmanager.net, wu.azureedge.net
Not all processes where analyzed, report is missing behavior information
Report size getting too big, too many NtOpenKeyEx calls found.
Report size getting too big, too many NtProtectVirtualMemory calls found.
Report size getting too big, too many NtQueryValueKey calls found.
VT rate limit hit for: Stub.exe

Simulations

Behavior and APIs

Time	Type	Description
09:16:12	API Interceptor	2x Sleep call for process: Stub.exe modified

Process:	C:\Users\user\Desktop\Stub.exe
File Type:	Microsoft Cabinet archive data, Windows 2000/XP setup, 62932 bytes, 1 file, at 0x2c +A "authroot.stl", number 1, 6 datablocks, 0x1 compression
Category:	dropped
Size (bytes):	62932
Entropy (8bit):	7.9958071285043335
Encrypted:	true
SSDEEP:	1536:pvl2gmukMiArbge/oKIxf+Q9yNJLaRCfIElhUuDz:pvl2gmZhpehIxfJsJLawfIElhUu3
MD5:	FC4666CBCA561E864E7FDF883A9E6661
SHA1:	2F8D6094C7A34BF12EA0BBF0D51EE9C5BB7939A5
SHA-256:	10F3DEB6C452D749A7451B5D065F4C0449737E5EE8A44F4D15844B503141E65B
SHA-512:	C71F54B571E01F247F072BE4BBEBDF5D8410B67EB79A61E7E0D9853FE857AB9BD12F53E6AF3394B935560178107291FC4BE351B27DEB388EBA90BA949633D57D
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	MSCF............,...................I.................oU.s .authroot.stl......5..CK..8U[...q.yL;sf!d.D..."2."C...2....RRRHnT...\...!2.)QQ2..nN.\7.....lgYk;.^.....}..h4.....Kc.cG.q.tY..Drg<..G.D....c.qnx..G.......r.8.....w...;.Q6..o.xf:f..:NL[.`..]I.@ ,W..J..Qf.z9.<.../.D.p:0R...#..I,.%.+."...B.n)...[Y=.,0...R.#..G5..2..]........$p..3.M.O...._L.......g.....?=.J..!...G~.#.J:.Wj.........9(:..g.8,.o.b...3..C..t.7L=..+~%pc...%..b(.q.......F.'...@~P .6CA.(d.Z~..6....=.).9......A........p...Gy....7U.L....S...^.R.T.p...R..:.hr./..8...a&p.l(....g.3a)...[.M..v.......g,.U..l.F..._kJv.4.rG.{.K.6.X.rz.8.r..&..G.j..p".z...L...EUX.......;...Y.................j}..FrT.,J3.d?T.T}Q..hn.?.4F...~K...........'...c...X,.v..yk..0._.j\|.(.q4k1....^b..6...z..\9'}.%....S.[..D.k....J.../D$.#..O.o~%S.9u....\|61.........~....Q+.w.e....7}..:.....^.p.mKm._9v......'.3T..bY3..9a..p.'1..Lx.O.g..J5w+.r..K.R.P.....E0bf*r...c..;...`.j...i.;y.C..#\|L.e.(.....w.X'...z../.-...c.......

C:\Users\user\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506

Download File

Process:	C:\Users\user\Desktop\Stub.exe
File Type:	data
Category:	modified
Size (bytes):	328
Entropy (8bit):	3.1786749463541457
Encrypted:	false
SSDEEP:	6:kK3dh+qz7ksN+SkQlPlEGYRMY9z+4KlDA3RUe+OGNglcy:fTUkPlE99SNxAhUefblcy
MD5:	2E0F10B259BAF2EE99431DF49C886A0B
SHA1:	0708B9E03DE5A9A7637F4461D840EDC9E4414A6A
SHA-256:	1333401AA1A0F6D497C63B5B1D1E01F2595FD0380CB2A984102A65E6B26B6023
SHA-512:	76C6D7BDF682AEAB9104A81F0BE7E92EA452A68F4AC13741380DF10BCF878DC35895E16FAADD62C7437B41647A457E7E56C4FBDBF0E3EA6F1505D11BAAE0CD59
Malicious:	false
Reputation:	low
Preview:	p...... ...........i)!..(....................................................... .........g.%.......&...............h.t.t.p.:././.c.t.l.d.l...w.i.n.d.o.w.s.u.p.d.a.t.e...c.o.m./.m.s.d.o.w.n.l.o.a.d./.u.p.d.a.t.e./.v.3./.s.t.a.t.i.c./.t.r.u.s.t.e.d.r./.e.n./.a.u.t.h.r.o.o.t.s.t.l...c.a.b...".8.0.a.1.6.7.1.3.2.5.4.d.9.1.:.0."...

Static File Info

General

File type:	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
Entropy (8bit):	5.627060592579058
TrID:	Win32 Executable (generic) Net Framework (10011505/4) 49.83% Win32 Executable (generic) a (10002005/4) 49.78% Generic CIL Executable (.NET, Mono, etc.) (73296/58) 0.36% Generic Win/DOS Executable (2004/3) 0.01% DOS Executable Generic (2002/1) 0.01%
File name:	Stub.exe
File size:	62464
MD5:	da5c4dbbc80ca5da70237ef8bc281476
SHA1:	c6689884e4bf3360fceacbdaff09d211cef3a49d
SHA256:	4981bda443713f5cecb9df4d163cd62f1bd038cb897895bb2f81015796676371
SHA512:	40210ddddaae84fa45d758831491cc3b609c3194862f8fad8938e713fa5033eaf473c44bb0bc345ea46fc302264f5628b6793339bf0cb5f2aea2c316a0c115f4
SSDEEP:	1536:+/KCnABwEttYQuT68QKzWbVSDRDZLbxx:+/KrBwEttYm8BabVSjLVx
TLSH:	EE532B043BE9C129F1BE8F709DF376444AB9F1677906DA0E1CD451DA0622BC68A427EF
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..L.....7c............................^.... ... ....@.. .......................`............@................................

File Icon


Icon Hash:	00828e8e8686b000

Static PE Info

General

Entrypoint:	0x41075e
Entrypoint Section:	.text
Digitally signed:	false
Imagebase:	0x400000
Subsystem:	windows gui
Image File Characteristics:	EXECUTABLE_IMAGE, 32BIT_MACHINE
DLL Characteristics:	DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Time Stamp:	0x633700E3 [Fri Sep 30 14:44:51 2022 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:	f34d5f2d4577ed6d9ceec516c1f5a744

Entrypoint Preview

Instruction
jmp dword ptr [00402000h]
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Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x1070c	0x4f	.text
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x12000	0x7ff	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x14000	0xc	.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG	0x0	0x0
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	0x2000	0x8	.text
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x2008	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	0xe764	0xe800	False	0.5357623922413793	data	5.673338999412451	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.rsrc	0x12000	0x7ff	0x800	False	0.41650390625	data	4.884866150337139	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.reloc	0x14000	0xc	0x200	False	0.044921875	data	0.08153941234324169	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country
RT_VERSION	0x120a0	0x2cc	data
RT_MANIFEST	0x1236c	0x493	exported SGML document, Unicode text, UTF-8 (with BOM) text, with CRLF line terminators

Imports

DLL	Import
mscoree.dll	_CorExeMain

Network Behavior

Snort IDS Alerts

Timestamp	Protocol	SID	Message	Source Port	Dest Port	Source IP	Dest IP
142.202.240.108192.168.2.35505496892030673 01/05/23-09:16:11.192042	TCP	2030673	ET TROJAN Observed Malicious SSL Cert (AsyncRAT Server)	5505	49689	142.202.240.108	192.168.2.3
142.202.240.108192.168.2.35505496892035595 01/05/23-09:16:11.192042	TCP	2035595	ET TROJAN Generic AsyncRAT Style SSL Cert	5505	49689	142.202.240.108	192.168.2.3

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 5, 2023 09:16:10.446110964 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:10.608800888 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:10.609150887 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:11.019267082 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:11.192042112 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:11.192109108 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:11.192358017 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:11.211710930 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:11.376323938 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:11.420284033 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:14.210656881 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:14.413397074 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:14.413630962 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:14.616478920 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:24.083786011 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:24.287956953 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:24.288218021 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:24.450222969 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:24.499444008 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:24.660866022 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:24.702743053 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:25.105531931 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:25.319370985 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:25.319547892 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:25.522351980 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:33.945424080 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:34.147113085 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:34.147206068 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:34.309361935 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:34.359613895 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:34.520828962 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:34.556056976 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:34.771938086 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:34.774681091 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:34.990674973 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:37.736253977 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:37.781907082 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:37.943053961 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:37.985011101 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:43.769193888 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:43.974895954 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:43.975084066 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:44.137037039 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:44.188657999 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:44.349960089 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:44.367060900 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:44.568764925 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:44.568924904 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:44.771676064 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:53.594084978 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:53.802622080 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:53.802706003 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:53.964433908 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:54.017430067 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:54.178270102 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:54.220592976 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:54.596527100 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:54.802869081 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:16:54.803147078 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:16:55.005819082 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:03.475423098 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:03.677582026 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:03.677704096 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:03.840008974 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:03.893325090 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:04.054852962 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:04.086241007 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:04.302668095 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:04.305140018 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:04.521357059 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:07.741579056 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:07.784228086 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:07.945435047 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:08.003063917 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:13.312128067 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:13.521106005 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:13.521403074 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:13.684165955 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:13.737871885 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:13.899128914 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:13.941026926 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:14.171483040 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:14.380517960 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:14.382247925 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:14.599172115 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:23.155992031 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:23.380219936 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:23.380513906 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:23.543056965 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:23.598146915 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:23.759288073 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:23.776537895 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:23.989550114 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:23.989643097 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:24.192562103 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:33.781151056 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:33.989244938 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:33.989427090 CET	49689	5505	192.168.2.3	142.202.240.108
Jan 5, 2023 09:17:34.164716005 CET	5505	49689	142.202.240.108	192.168.2.3
Jan 5, 2023 09:17:34.208254099 CET	49689	5505	192.168.2.3	142.202.240.108

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 5, 2023 09:16:10.250736952 CET	59869	53	192.168.2.3	8.8.8.8
Jan 5, 2023 09:16:10.373781919 CET	53	59869	8.8.8.8	192.168.2.3

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Jan 5, 2023 09:16:10.250736952 CET	192.168.2.3	8.8.8.8	0xd24c	Standard query (0)	egrh.linkpc.net	A (IP address)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	Address	Type	Class	DNS over HTTPS
Jan 5, 2023 09:16:10.373781919 CET	8.8.8.8	192.168.2.3	0xd24c	No error (0)	egrh.linkpc.net	142.202.240.108	A (IP address)	IN (0x0001)	false
Jan 5, 2023 09:16:23.498951912 CET	8.8.8.8	192.168.2.3	0x2082	No error (0)	windowsupdatebg.s.llnwi.net	41.63.96.128	A (IP address)	IN (0x0001)	false
Jan 5, 2023 09:16:23.973170042 CET	8.8.8.8	192.168.2.3	0x96f9	No error (0)	windowsupdatebg.s.llnwi.net	41.63.96.128	A (IP address)	IN (0x0001)	false

Target ID:	0
Start time:	09:16:03
Start date:	05/01/2023
Path:	C:\Users\user\Desktop\Stub.exe
Wow64 process (32bit):	true
Commandline:	C:\Users\user\Desktop\Stub.exe
Imagebase:	0x50000
File size:	62464 bytes
MD5 hash:	DA5C4DBBC80CA5DA70237EF8BC281476
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	.Net C# or VB.NET
Yara matches:	Rule: MALWARE_Win_AsyncRAT, Description: Detects AsyncRAT, Source: 00000000.00000002.510364745.0000000004966000.00000004.00000800.00020000.00000000.sdmp, Author: ditekSHen Rule: MALWARE_Win_AsyncRAT, Description: Detects AsyncRAT, Source: 00000000.00000003.474031615.0000000000633000.00000004.00000020.00020000.00000000.sdmp, Author: ditekSHen Rule: MALWARE_Win_AsyncRAT, Description: Detects AsyncRAT, Source: 00000000.00000002.505594690.0000000000633000.00000004.00000020.00020000.00000000.sdmp, Author: ditekSHen Rule: JoeSecurity_AsyncRAT, Description: Yara detected AsyncRAT, Source: 00000000.00000000.237566508.0000000000052000.00000002.00000001.01000000.00000003.sdmp, Author: Joe Security Rule: INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse, Description: Detects file containing reversed ASEP Autorun registry keys, Source: 00000000.00000000.237566508.0000000000052000.00000002.00000001.01000000.00000003.sdmp, Author: ditekSHen Rule: MALWARE_Win_AsyncRAT, Description: Detects AsyncRAT, Source: 00000000.00000003.384798750.000000000061D000.00000004.00000020.00020000.00000000.sdmp, Author: ditekSHen Rule: MALWARE_Win_AsyncRAT, Description: Detects AsyncRAT, Source: 00000000.00000003.432092160.0000000000631000.00000004.00000020.00020000.00000000.sdmp, Author: ditekSHen Rule: JoeSecurity_AsyncRAT, Description: Yara detected AsyncRAT, Source: 00000000.00000002.508243418.0000000002511000.00000004.00000800.00020000.00000000.sdmp, Author: Joe Security Rule: MALWARE_Win_AsyncRAT, Description: Detects AsyncRAT, Source: 00000000.00000002.508243418.0000000002511000.00000004.00000800.00020000.00000000.sdmp, Author: ditekSHen
Reputation:	low

Disassembly

⊘No disassembly

Description:	Adversaries may abuse Windows Management Instrumentation (WMI) to achieve execution. WMI is a Windows administration feature that provides a uniform environment for local and remote access to Windows system components. It relies on the WMI service for local and remote access and the server message block (SMB) and Remote Procedure Call Service (RPCS) for remote access. RPCS operates over port 135.
Tactics:	Execution
Data Sources:	Authentication logs, Netflow/Enclave netflow, Process command-line parameters, Process monitoring
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may abuse task scheduling functionality to facilitate initial or recurring execution of malicious code. Utilities exist within all major operating systems to schedule programs or scripts to be executed at a specified date and time. A task can also be scheduled on a remote system, provided the proper authentication is met (ex: RPC and file and printer sharing in Windows environments). Scheduling a task on a remote system typically requires being a member of an admin or otherwise privileged group on the remote system.
Tactics:	Execution, Persistence, Privilege Escalation
Data Sources:	File monitoring, Process command-line parameters, Process monitoring, Windows event logs
Platforms:	Linux, macOS, 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 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 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 interact with the Windows Registry to gather information about the system, configuration, and installed software.
Tactics:	Discovery
Data Sources:	Process command-line parameters, Process monitoring, Windows Registry
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software 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, File monitoring, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, Azure AD, GCP, Linux, macOS, Office 365, SaaS, 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:	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:	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 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

Description:	Adversaries may communicate using application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	DNS records, Netflow/Enclave netflow, Network protocol analysis, Packet capture, Process monitoring, Process use of network
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report Stub.exe

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Threatname: AsyncRAT

Yara Signatures

Initial Sample

PCAP (Network Traffic)

Memory Dumps

Unpacked PEs

Sigma Signatures

Snort Signatures

Joe Sandbox Signatures

AV Detection

Compliance

Networking

Key, Mouse, Clipboard, Microphone and Screen Capturing

System Summary

Data Obfuscation

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

Lowering of HIPS / PFW / Operating System Security Settings

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

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\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506

C:\Users\user\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506

Static File Info

General

File Icon

Static PE Info

General

Entrypoint Preview

Data Directories

Sections

Resources

Imports

Network Behavior

Snort IDS Alerts

Network Port Distribution

TCP Packets

Windows Analysis Report
Stub.exe