Analysis

  • max time kernel
    150s
  • max time network
    150s
  • 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, 08:28

General

  • Target

    89ad42692fee7414e1d76e9e82ddb060_JaffaCakes118.exe

  • Size

    326KB

  • MD5

    89ad42692fee7414e1d76e9e82ddb060

  • SHA1

    0b146b9cd89888de3e11c997b5c13f6312022344

  • SHA256

    4e61ec038b087b5928e2f67763c5648f53fdf6809d884ad4767988b38ac76fef

  • SHA512

    5ab6535fb05524f8d3c7ad15f7bef77ec587fc9b0c852d63305d4883077c4603c97d8533df3c95b9e3873a752ed1e7d6aae39063096e85e75aeefbd178e2059b

  • SSDEEP

    6144:y/bxSTw4/srl69uroeLiDO5pFhLZzfe7oS3JnfAm:yjxST5s5pVD5xJmMS3mm

Malware Config

Extracted

Family

darkcomet

Botnet

TheLeGenD

C2

angham.no-ip.biz:60

Mutex

DC_MUTEX-HXHF9JH

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    2HQjSzpbPTYy

  • install

    true

  • offline_keylogger

    true

  • password

    123456

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 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
  • UPX packed file 29 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 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 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\89ad42692fee7414e1d76e9e82ddb060_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\89ad42692fee7414e1d76e9e82ddb060_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3080
    • C:\Users\Admin\AppData\Local\Temp\89ad42692fee7414e1d76e9e82ddb060_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\89ad42692fee7414e1d76e9e82ddb060_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:416
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\89ad42692fee7414e1d76e9e82ddb060_JaffaCakes118.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:344
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\89ad42692fee7414e1d76e9e82ddb060_JaffaCakes118.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:3140
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3040
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:1632
      • 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 WriteProcessMemory
        PID:3972
        • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
          C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
          4⤵
          • 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:2016
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:3100

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    326KB

    MD5

    89ad42692fee7414e1d76e9e82ddb060

    SHA1

    0b146b9cd89888de3e11c997b5c13f6312022344

    SHA256

    4e61ec038b087b5928e2f67763c5648f53fdf6809d884ad4767988b38ac76fef

    SHA512

    5ab6535fb05524f8d3c7ad15f7bef77ec587fc9b0c852d63305d4883077c4603c97d8533df3c95b9e3873a752ed1e7d6aae39063096e85e75aeefbd178e2059b

  • memory/416-1-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/416-5-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/416-65-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/416-2-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/416-3-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/416-8-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/416-11-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/416-10-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/416-9-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/416-15-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-60-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-68-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-80-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-59-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-61-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-79-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-64-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-78-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-63-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-77-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-67-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-76-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-69-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-70-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-71-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-72-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-73-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-74-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2016-75-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/3080-7-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/3080-0-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/3100-62-0x0000000001050000-0x0000000001051000-memory.dmp

    Filesize

    4KB

  • memory/3972-47-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/3972-58-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB