Analysis

  • max time kernel
    141s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-04-2024 23:50

General

  • Target

    f6d70f49f5591a869286ebe73d8e6a7c_JaffaCakes118.exe

  • Size

    746KB

  • MD5

    f6d70f49f5591a869286ebe73d8e6a7c

  • SHA1

    446780aff428eb8f96b136e19c2a3f591b6c1c4f

  • SHA256

    952a8b918722a1c01fe28bf5399d5410ede22e48aab8f99a277266c31de9ff76

  • SHA512

    0a78c9015877c8c80bdaaf671d120098fba9abd1be9a07155e3528c1e901e88b7c3f38ae615524f39242c7c0d05010082c046918afb29e2e16edaf2189f64c03

  • SSDEEP

    12288:Z6A84PaHhfD/tV9sj5NKR0pau9XGyu2qBVGLQyTPfh:8AmBpVKHu0Mu9Xo20VGLVP5

Malware Config

Signatures

  • Darkcomet

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

  • Modifies firewall policy service 2 TTPs 3 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Windows security modification 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • System policy modification 1 TTPs 3 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6d70f49f5591a869286ebe73d8e6a7c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f6d70f49f5591a869286ebe73d8e6a7c_JaffaCakes118.exe"
    1⤵
    • Modifies firewall policy service
    • Modifies security service
    • Windows security bypass
    • Disables RegEdit via registry modification
    • Checks computer location settings
    • Windows security modification
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2148
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\f6d70f49f5591a869286ebe73d8e6a7c_JaffaCakes118.exe" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4224
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\f6d70f49f5591a869286ebe73d8e6a7c_JaffaCakes118.exe" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:4616
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4036
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:2296

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2148-0-0x0000000002280000-0x0000000002281000-memory.dmp

    Filesize

    4KB

  • memory/2148-1-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB

  • memory/2148-3-0x0000000000400000-0x00000000004CC000-memory.dmp

    Filesize

    816KB