Analysis

  • max time kernel
    141s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/08/2024, 00:47

General

  • Target
    8857b84e74bd78ad49f04f6f8d0ce65a_JaffaCakes118.exe
  • Size 1.6MB
  • Sample240811-a5la2a1dnd
  • SHA256 3f48a0ac6fd7487e22566c17ca1eda2bc9bede54adb53cc12bcd6a6afd23cc71
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • Guest16

C2
  • black-ghost.no-ip.info:1604

  • 192.168.1.2:1604

Mutex
  • DC_MUTEX-3M3BF1V

Attributes
  • gencode

    fXTP1ELrNGMR

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

  • Drops file in Drivers directory 1 IoCs
  • Event Triggered Execution: Image File Execution Options Injection 1 TTPs 64 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • UPX packed file 8 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • AutoIT Executable 4 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in Windows directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8857b84e74bd78ad49f04f6f8d0ce65a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8857b84e74bd78ad49f04f6f8d0ce65a_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1428
    • C:\Windows\Cheat Counter Strike.exe
      "C:\Windows\Cheat Counter Strike.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1128
    • C:\Windows\sara_sexy.exe
      C:\Windows/sara_sexy.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1328
      • C:\Windows\A new game and fun.exe
        "C:\Windows/A new game and fun.exe"
        3⤵
        • Event Triggered Execution: Image File Execution Options Injection
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1932

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        aut978E.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\aut978E.tmp
        • Size 768KB
        • SHA256 6febf4f5937805e186cbddd3e257719546f40c7b4b08052640c9c6927b66c490
        • MD5 SHA1 SHA512 SSDEEP

        aut9A8B.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\aut9A8B.tmp
        • Size 472KB
        • SHA256 b8e204574f58ece85b3546e30a20610eab2a3ab8d2f8102099bab2e6e19acbc7
        • MD5 SHA1 SHA512 SSDEEP

        Cheat Counter Strike.exe

        • Path C:\Windows\Cheat Counter Strike.exe
        • Size 663KB
        • SHA256 cb1e144bca11f74425a9b52afaa443f07fca623e2a3834c142cf66c507386254
        • MD5 SHA1 SHA512 SSDEEP

        memory/1128-51-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1128-55-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1128-29-0x00000000006A0000-0x00000000006A1000-memory.dmp

        memory/1128-53-0x0000000000400000-0x00000000004B5000-memory.dmp

        memory/1328-27-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/1328-47-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/1428-28-0x0000000000400000-0x0000000000516000-memory.dmp

        memory/1428-0-0x0000000000400000-0x0000000000516000-memory.dmp

        memory/1932-50-0x0000000000400000-0x0000000000519000-memory.dmp

        memory/1932-46-0x0000000000400000-0x0000000000519000-memory.dmp