Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/07/2024, 20:36

General

  • Target

    64b632051e51d8fbb8fe3ddfb55c9eef_JaffaCakes118.exe

  • Size

    311KB

  • MD5

    64b632051e51d8fbb8fe3ddfb55c9eef

  • SHA1

    f96da73b616ba82da7a2be1dd4ddbafb9b682159

  • SHA256

    20bf4c494b3c46dea4ed862d11f5c1763fd5ce362391ed576c3d042aaf877f98

  • SHA512

    401ed854fabd60b46dccf3d5d9a9f944beb0a38ebe39acb770024a20cc821a023d860530b87b72418b983894addf19f6183945ee5e2931f250506548a7b0b811

  • SSDEEP

    6144:gDwD7cY2fgssM7Wirg9KXylmRiL+QMeC/i6isqX7UovnONztByipwxZfrC87FCWd:g8l8E4w5huat7UovONzbXwLrj7cq

Malware Config

Extracted

Family

darkcomet

Botnet

SAMEDI

C2

straydz.no-ip.org:5000

Mutex

DC_MUTEX-BQTQ7VQ

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    2PQNXXEJtZlz

  • 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
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\64b632051e51d8fbb8fe3ddfb55c9eef_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\64b632051e51d8fbb8fe3ddfb55c9eef_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5088
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • System policy modification
      PID:3856

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    311KB

    MD5

    64b632051e51d8fbb8fe3ddfb55c9eef

    SHA1

    f96da73b616ba82da7a2be1dd4ddbafb9b682159

    SHA256

    20bf4c494b3c46dea4ed862d11f5c1763fd5ce362391ed576c3d042aaf877f98

    SHA512

    401ed854fabd60b46dccf3d5d9a9f944beb0a38ebe39acb770024a20cc821a023d860530b87b72418b983894addf19f6183945ee5e2931f250506548a7b0b811

  • memory/3856-70-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/3856-74-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/3856-80-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/3856-64-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/3856-65-0x00000000020E0000-0x00000000020E1000-memory.dmp

    Filesize

    4KB

  • memory/3856-66-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/3856-67-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/3856-68-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/3856-79-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/3856-78-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/3856-73-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/3856-72-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/3856-71-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/3856-69-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/3856-75-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/3856-76-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/3856-77-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/5088-1-0x0000000000860000-0x0000000000861000-memory.dmp

    Filesize

    4KB

  • memory/5088-0-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/5088-63-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB