Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/07/2024, 19:35

General

  • Target
    3e9cf12f984c8952f2b48f5584354346_JaffaCakes118.exe
  • Size 976KB
  • Sample240712-yaz3psxcpm
  • SHA256 c6f42a29a513685cf009874047661eca502b4d38f970251602a7020e2a6f1ae2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3e9cf12f984c8952f2b48f5584354346_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\3e9cf12f984c8952f2b48f5584354346_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3000
    • C:\Users\Admin\AppData\Roaming\svchost.exe.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3144
    • C:\Users\Admin\AppData\Local\Temp\3e9cf12f984c8952f2b48f5584354346_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\3e9cf12f984c8952f2b48f5584354346_JaffaCakes118.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:632
      • C:\Users\Admin\AppData\Roaming\svchost.exe.exe
        C:\Users\Admin\AppData\Roaming\svchost.exe.exe
        3⤵
        • Executes dropped EXE
        PID:2124
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2124 -s 520
          4⤵
          • Program crash
          PID:1204
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 936
        3⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:3640
    • C:\Users\Admin\AppData\Local\Temp\3e9cf12f984c8952f2b48f5584354346_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\3e9cf12f984c8952f2b48f5584354346_JaffaCakes118.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4252
      • C:\Users\Admin\AppData\Roaming\svchost.exe.exe
        C:\Users\Admin\AppData\Roaming\svchost.exe.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:3124
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2124 -ip 2124
    1⤵
      PID:1856

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          svchost.exe.exe

          • Path C:\Users\Admin\AppData\Roaming\svchost.exe.exe
          • Size 1KB
          • SHA256 c0657322afdac0df459f3bc233ecf362838774a116ff8d82846914925d246e83
          • MD5 SHA1 SHA512

          memory/632-17-0x0000000074D02000-0x0000000074D03000-memory.dmp

          memory/632-31-0x0000000074D00000-0x00000000752B1000-memory.dmp

          memory/632-20-0x0000000074D00000-0x00000000752B1000-memory.dmp

          memory/632-18-0x0000000074D00000-0x00000000752B1000-memory.dmp

          memory/3000-38-0x0000000074D00000-0x00000000752B1000-memory.dmp

          memory/3000-0-0x0000000074D02000-0x0000000074D03000-memory.dmp

          memory/3000-40-0x0000000074D00000-0x00000000752B1000-memory.dmp

          memory/3000-39-0x0000000074D02000-0x0000000074D03000-memory.dmp

          memory/3000-1-0x0000000074D00000-0x00000000752B1000-memory.dmp

          memory/3000-2-0x0000000074D00000-0x00000000752B1000-memory.dmp

          memory/3124-35-0x0000000000400000-0x00000000004C3000-memory.dmp

          memory/3144-37-0x0000000000400000-0x00000000004C3000-memory.dmp

          memory/3144-6-0x0000000000400000-0x00000000004C3000-memory.dmp

          memory/3144-13-0x0000000000400000-0x00000000004C3000-memory.dmp

          memory/3144-14-0x0000000000400000-0x00000000004C3000-memory.dmp

          memory/3144-9-0x0000000000400000-0x00000000004C3000-memory.dmp

          memory/3144-16-0x00000000023A0000-0x00000000023A1000-memory.dmp

          memory/3144-10-0x0000000000400000-0x00000000004C3000-memory.dmp

          memory/3144-15-0x0000000000400000-0x00000000004C3000-memory.dmp

          memory/3144-12-0x0000000000400000-0x00000000004C3000-memory.dmp

          memory/3144-41-0x0000000000400000-0x00000000004C3000-memory.dmp

          memory/3144-42-0x0000000000400000-0x00000000004C3000-memory.dmp

          memory/3144-45-0x0000000000400000-0x00000000004C3000-memory.dmp

          memory/3144-48-0x0000000000400000-0x00000000004C3000-memory.dmp