Analysis

  • max time kernel
    150s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-07-2024 15:02

General

  • Target

    7489d6d9182cfb315a028a9670a1eaa7_JaffaCakes118.exe

  • Size

    501KB

  • MD5

    7489d6d9182cfb315a028a9670a1eaa7

  • SHA1

    6248b643e2700e60960d7ea7911926310d6bdb41

  • SHA256

    539cb4699daed68cce319ba88bb97ed2211321ab7d8342370bcd958f3de6af38

  • SHA512

    8e795753a7818a5818f29586b57750f6e397475299924624d4a27fb9a8c81194bf16b7c6af108dbc4961b222dfe7a3cfedcf8c7be040bde27b3cf6ec485dc4ea

  • SSDEEP

    6144:+pnVaARrQbqPwZQU+gr+h8Ug1Dgpfd+5R8Kyt9oXtzYYjsUE+ksQIPSkh7h/SL:Wnka8AHeb405Rt9Je4/Skh9/S

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

speeed.zapto.org:15963

speeed.hopto.org:15963

Mutex

DC_MUTEX-WLBBHZN

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    3Vr9Alq967cJ

  • install

    true

  • offline_keylogger

    true

  • 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
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 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 3 IoCs

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

  • Modifies registry class 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7489d6d9182cfb315a028a9670a1eaa7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\7489d6d9182cfb315a028a9670a1eaa7_JaffaCakes118.exe"
    1⤵
    • 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:2288
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1196
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2368

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    501KB

    MD5

    7489d6d9182cfb315a028a9670a1eaa7

    SHA1

    6248b643e2700e60960d7ea7911926310d6bdb41

    SHA256

    539cb4699daed68cce319ba88bb97ed2211321ab7d8342370bcd958f3de6af38

    SHA512

    8e795753a7818a5818f29586b57750f6e397475299924624d4a27fb9a8c81194bf16b7c6af108dbc4961b222dfe7a3cfedcf8c7be040bde27b3cf6ec485dc4ea

  • memory/1196-72-0x0000000000400000-0x0000000000567591-memory.dmp

    Filesize

    1.4MB

  • memory/2288-3-0x0000000000400000-0x0000000000567591-memory.dmp

    Filesize

    1.4MB

  • memory/2288-0-0x0000000000400000-0x0000000000567591-memory.dmp

    Filesize

    1.4MB

  • memory/2288-4-0x0000000000400000-0x0000000000567591-memory.dmp

    Filesize

    1.4MB

  • memory/2288-5-0x0000000000400000-0x0000000000567591-memory.dmp

    Filesize

    1.4MB

  • memory/2288-7-0x0000000000400000-0x0000000000567591-memory.dmp

    Filesize

    1.4MB

  • memory/2288-8-0x0000000000400000-0x0000000000567591-memory.dmp

    Filesize

    1.4MB

  • memory/2288-6-0x0000000000400000-0x0000000000567591-memory.dmp

    Filesize

    1.4MB

  • memory/2288-2-0x0000000000401000-0x00000000004EA000-memory.dmp

    Filesize

    932KB

  • memory/2288-59-0x0000000000400000-0x0000000000567591-memory.dmp

    Filesize

    1.4MB

  • memory/2288-61-0x0000000000400000-0x0000000000567591-memory.dmp

    Filesize

    1.4MB

  • memory/2288-1-0x0000000000400000-0x0000000000567591-memory.dmp

    Filesize

    1.4MB

  • memory/2288-73-0x0000000000401000-0x00000000004EA000-memory.dmp

    Filesize

    932KB

  • memory/2368-71-0x0000000000400000-0x0000000000568000-memory.dmp

    Filesize

    1.4MB