Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27/02/2025, 04:49

General

  • Target

    JaffaCakes118_2ad0882bd65c724bc72a5551cfc4deac.exe

  • Size

    251KB

  • MD5

    2ad0882bd65c724bc72a5551cfc4deac

  • SHA1

    aa4ad1269bc7852513c2c09b3b83f19b62b370e4

  • SHA256

    3764002f8b40e8752ba731f80116fa83adff90d1e142cd1a8973515418d97d7b

  • SHA512

    f554741dc123ead7faff2342467609385f020feb12c330c8090a65635c1d3cc95322a5ef886b9e88b07f60af5920babeeb6917f016c693311cdc4db352449aee

  • SSDEEP

    6144:McNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37s:McW7KEZlPzCy37

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

62.201.240.82:1604

Mutex

DC_MUTEX-Q2YYCL4

Attributes
  • InstallPath

    MSDCSC\msdcsc.bat

  • gencode

    WYKYDgPxBWPJ

  • install

    true

  • offline_keylogger

    true

  • password

    0123456789

  • persistence

    true

  • reg_key

    MicroUpdate

rc4.plain

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • UPX packed file 10 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2ad0882bd65c724bc72a5551cfc4deac.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2ad0882bd65c724bc72a5551cfc4deac.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2828
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.bat
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.bat"
      2⤵
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1832
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        3⤵
          PID:2824
        • C:\Windows\explorer.exe
          "C:\Windows\explorer.exe"
          3⤵
            PID:2124
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            3⤵
            • System Location Discovery: System Language Discovery
            PID:2128

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • \Users\Admin\Documents\MSDCSC\msdcsc.bat

        Filesize

        251KB

        MD5

        2ad0882bd65c724bc72a5551cfc4deac

        SHA1

        aa4ad1269bc7852513c2c09b3b83f19b62b370e4

        SHA256

        3764002f8b40e8752ba731f80116fa83adff90d1e142cd1a8973515418d97d7b

        SHA512

        f554741dc123ead7faff2342467609385f020feb12c330c8090a65635c1d3cc95322a5ef886b9e88b07f60af5920babeeb6917f016c693311cdc4db352449aee

      • memory/1832-48-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/1832-62-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/1832-14-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/1832-60-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/1832-56-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/1832-15-0x0000000000270000-0x0000000000271000-memory.dmp

        Filesize

        4KB

      • memory/1832-54-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/1832-52-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/1832-49-0x0000000000270000-0x0000000000271000-memory.dmp

        Filesize

        4KB

      • memory/2128-17-0x0000000000080000-0x0000000000081000-memory.dmp

        Filesize

        4KB

      • memory/2128-46-0x0000000000200000-0x0000000000201000-memory.dmp

        Filesize

        4KB

      • memory/2828-47-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/2828-0-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/2828-11-0x0000000003C70000-0x0000000003D27000-memory.dmp

        Filesize

        732KB

      • memory/2828-12-0x0000000003C70000-0x0000000003D27000-memory.dmp

        Filesize

        732KB

      • memory/2828-1-0x0000000000260000-0x0000000000261000-memory.dmp

        Filesize

        4KB