Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-12-2024 20:42

General

  • Target

    f09ac1ca6f0a58119f285ce700aa4db3_JaffaCakes118.exe

  • Size

    994KB

  • MD5

    f09ac1ca6f0a58119f285ce700aa4db3

  • SHA1

    c6d431c82c2f51d947b7dab195958f93316bc5e6

  • SHA256

    dc171a147f2b811cce1a408893b0b28a1c422e975100eb3e810d94c9cad05ce6

  • SHA512

    1e68cfba1a84d431d0f95305d20960d08a9fdcebc117e1341e922efa9473594d92e22ef06b8699f19eafc8a9bc82bcc5bad33a65da9b2c2e095739ad8db77638

  • SSDEEP

    24576:V2vsI2u+v3xG6/jEn0r3Kd3YJs4PKxzOT29XnBNeze3zV7rwQ7VCJuOemqsHG6YC:V2h0LL6Dx0yMxMiMlfl8B3

Malware Config

Extracted

Family

darkcomet

Botnet

kingspyulen

C2

127.0.0.1:1604

delikralll.dyndns.org:1604

Mutex

DC_MUTEX-U3PPGJ4

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    6o6pESzMr3zh

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • 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
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • 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.

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f09ac1ca6f0a58119f285ce700aa4db3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f09ac1ca6f0a58119f285ce700aa4db3_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4896
    • C:\Users\Admin\AppData\Local\Temp\f09ac1ca6f0a58119f285ce700aa4db3_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\f09ac1ca6f0a58119f285ce700aa4db3_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • 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:4928
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
          PID:876
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 876 -s 80
            4⤵
            • Program crash
            PID:3080
        • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
          "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:232
          • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
            C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:2188
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 876 -ip 876
      1⤵
        PID:4784

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        994KB

        MD5

        f09ac1ca6f0a58119f285ce700aa4db3

        SHA1

        c6d431c82c2f51d947b7dab195958f93316bc5e6

        SHA256

        dc171a147f2b811cce1a408893b0b28a1c422e975100eb3e810d94c9cad05ce6

        SHA512

        1e68cfba1a84d431d0f95305d20960d08a9fdcebc117e1341e922efa9473594d92e22ef06b8699f19eafc8a9bc82bcc5bad33a65da9b2c2e095739ad8db77638

      • memory/876-8-0x0000000000CE0000-0x0000000000CE1000-memory.dmp

        Filesize

        4KB

      • memory/2188-79-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/2188-87-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/2188-91-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/2188-90-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/2188-73-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/2188-74-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/2188-89-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/2188-78-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/2188-88-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/2188-80-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/2188-81-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/2188-82-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/2188-83-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/2188-84-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/2188-85-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/2188-86-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/4928-5-0x0000000002280000-0x0000000002281000-memory.dmp

        Filesize

        4KB

      • memory/4928-2-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/4928-75-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/4928-3-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB

      • memory/4928-4-0x0000000000400000-0x00000000004B5000-memory.dmp

        Filesize

        724KB