Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/03/2025, 19:04

General

  • Target

    JaffaCakes118_93b1c468ecc1ffe8c90dc09ce42186ee.exe

  • Size

    756KB

  • MD5

    93b1c468ecc1ffe8c90dc09ce42186ee

  • SHA1

    cc89f8e98cf706f742a438ab905719f4aebfa745

  • SHA256

    51b13246e64c7be1bd213ff7403c7473bd2162b3590faab70482b0b20ef6675a

  • SHA512

    8ad6d62e7e1a87e74e37dce6532452e89a1e8775aac7f7765919d614bbed849bedf2cb78d9c15275a98cd82070aa8cbe57e588aa8d48c42bb4d1c308e82f3617

  • SSDEEP

    12288:q9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hEl:mZ1xuVVjfFoynPaVBUR8f+kN10EBql

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

havefunscape.no-ip.biz:1604

Mutex

DC_MUTEX-D2V16DJ

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    TWV4VFeCiHnT

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • 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
  • Drops file in Drivers directory 1 IoCs
  • 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.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_93b1c468ecc1ffe8c90dc09ce42186ee.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_93b1c468ecc1ffe8c90dc09ce42186ee.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Drivers directory
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:460
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_93b1c468ecc1ffe8c90dc09ce42186ee.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5740
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_93b1c468ecc1ffe8c90dc09ce42186ee.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:436
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5800
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:932
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:704
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3600
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1168
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        3⤵
          PID:1284
        • C:\Windows\explorer.exe
          "C:\Windows\explorer.exe"
          3⤵
            PID:1824
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            3⤵
            • System Location Discovery: System Language Discovery
            PID:3060

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

        Filesize

        756KB

        MD5

        93b1c468ecc1ffe8c90dc09ce42186ee

        SHA1

        cc89f8e98cf706f742a438ab905719f4aebfa745

        SHA256

        51b13246e64c7be1bd213ff7403c7473bd2162b3590faab70482b0b20ef6675a

        SHA512

        8ad6d62e7e1a87e74e37dce6532452e89a1e8775aac7f7765919d614bbed849bedf2cb78d9c15275a98cd82070aa8cbe57e588aa8d48c42bb4d1c308e82f3617

      • memory/460-0-0x0000000000600000-0x0000000000601000-memory.dmp

        Filesize

        4KB

      • memory/460-11-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/704-10-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/1168-16-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/1168-17-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/1168-12-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/1168-13-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/1168-14-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/1168-15-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/1168-7-0x0000000002180000-0x0000000002181000-memory.dmp

        Filesize

        4KB

      • memory/1168-25-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/1168-18-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/1168-19-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/1168-20-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/1168-21-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/1168-22-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/1168-23-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/1168-24-0x0000000000400000-0x00000000004CA000-memory.dmp

        Filesize

        808KB

      • memory/3060-8-0x0000000001040000-0x0000000001041000-memory.dmp

        Filesize

        4KB