Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/07/2024, 22:26

General

  • Target
    6037995835a785a752639476e649a992_JaffaCakes118.exe
  • Size 946KB
  • Sample240720-2ch4rayalb
  • SHA256 c0d60354f5ab983f7d3cadc96d2b9b28467524617ab1e9be23d6a705921fc969
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • Zombi

C2
  • ozowarac.no-ip.org:1604

Mutex
  • DC_MUTEX-TF3J9AX

Attributes
  • gencode

    7zTW8Ld2Lb3z

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 17 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).

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6037995835a785a752639476e649a992_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\6037995835a785a752639476e649a992_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1116
    • C:\Users\Admin\AppData\Local\Temp\Software\PATCH.exe
      "C:\Users\Admin\AppData\Local\Temp\Software\PATCH.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2312
    • C:\Users\Admin\AppData\Local\Temp\Software\server.exe
      "C:\Users\Admin\AppData\Local\Temp\Software\server.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1068
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Software\server.exe" +s +h
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4540
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\Software\server.exe" +s +h
          4⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:2160
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Software" +s +h
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4652
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\Software" +s +h
          4⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:4412
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
          PID:4236
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x4c4 0x408
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4584

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          PATCH.exe

          • Path C:\Users\Admin\AppData\Local\Temp\Software\PATCH.exe
          • Size 660KB
          • SHA256 81420759e9c7e78cdfcd9f9762cddefb0a762b51ea16ca590dc32e586add555b
          • MD5 SHA1 SHA512 SSDEEP

          server.exe

          • Path C:\Users\Admin\AppData\Local\Temp\Software\server.exe
          • Size 252KB
          • SHA256 41441df8090040c6c1120a93dc1f5ff52f6ac775164671fd1f132b4447bca6cd
          • MD5 SHA1 SHA512 SSDEEP

          bassmod.dll

          • Path C:\Users\Admin\AppData\Local\Temp\bassmod.dll
          • Size 9KB
          • SHA256 844eb66a10b848d3a71a8c63c35f0a01550a46d2ff8503e2ca8947978b03b4d2
          • MD5 SHA1 SHA512 SSDEEP

          memory/1068-44-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1068-45-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1068-50-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1068-49-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1068-48-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1068-27-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1068-29-0x0000000002410000-0x0000000002411000-memory.dmp

          memory/1068-47-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1068-46-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1068-43-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1068-36-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1068-37-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1068-38-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1068-39-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1068-40-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1068-41-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1068-42-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1116-0-0x00007FF8383B5000-0x00007FF8383B6000-memory.dmp

          memory/1116-4-0x00007FF838100000-0x00007FF838AA1000-memory.dmp

          memory/1116-34-0x00007FF838100000-0x00007FF838AA1000-memory.dmp

          memory/1116-1-0x00007FF838100000-0x00007FF838AA1000-memory.dmp

          memory/1116-2-0x0000028F747D0000-0x0000028F747DA000-memory.dmp

          memory/1116-3-0x0000028F76A60000-0x0000028F76B06000-memory.dmp

          memory/2312-23-0x0000000000400000-0x00000000004B8000-memory.dmp

          memory/4236-35-0x0000000001110000-0x0000000001111000-memory.dmp