Analysis

  • max time kernel
    150s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    13-12-2024 12:54

General

  • Target

    eb9929b2a05ca8aaffe501e498bd0301_JaffaCakes118.exe

  • Size

    747KB

  • MD5

    eb9929b2a05ca8aaffe501e498bd0301

  • SHA1

    2a648717022fbe526f07c6827796d0f2a767cae2

  • SHA256

    f0904890533c32e6fcbe160eb0055c55d7eff868002cf638b4806b26593c2638

  • SHA512

    3b0f9441f72b1ddafd121da04e53fd89af2e68cf37aeb92c9aea5d9b47a21b5d4f4fa7bd85196b08442c18e5423182f1cc9d3d71ed9fd5ec518fd48ef0c33f20

  • SSDEEP

    12288:ek0QVlhmPojAPTMEsUTg0oChO/Q2JbsbjPbN5qhRTtYe3f+Iw86k/9/+rnkT:z0QRWoJEfg0oChGdJQbjPbNW5tYeP+Gp

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

melidas.no-ip.org:1604

Mutex

DC_MUTEX-W6URBQG

Attributes
  • InstallPath

    MSDCSC\Rundll32.exe

  • gencode

    tduXnWzfAFR4

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    Rundll32

Signatures

  • Darkcomet

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

  • Darkcomet family
  • 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 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eb9929b2a05ca8aaffe501e498bd0301_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\eb9929b2a05ca8aaffe501e498bd0301_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Windows\MSDCSC\Rundll32.exe
      "C:\Windows\MSDCSC\Rundll32.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Executes dropped EXE
      • Windows security modification
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3004

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\MSDCSC\Rundll32.exe

    Filesize

    747KB

    MD5

    eb9929b2a05ca8aaffe501e498bd0301

    SHA1

    2a648717022fbe526f07c6827796d0f2a767cae2

    SHA256

    f0904890533c32e6fcbe160eb0055c55d7eff868002cf638b4806b26593c2638

    SHA512

    3b0f9441f72b1ddafd121da04e53fd89af2e68cf37aeb92c9aea5d9b47a21b5d4f4fa7bd85196b08442c18e5423182f1cc9d3d71ed9fd5ec518fd48ef0c33f20

  • memory/1200-0-0x00000000001D0000-0x00000000001D1000-memory.dmp

    Filesize

    4KB

  • memory/1200-12-0x0000000000400000-0x00000000004C8000-memory.dmp

    Filesize

    800KB

  • memory/3004-19-0x0000000000400000-0x00000000004C8000-memory.dmp

    Filesize

    800KB

  • memory/3004-21-0x0000000000400000-0x00000000004C8000-memory.dmp

    Filesize

    800KB

  • memory/3004-16-0x0000000000400000-0x00000000004C8000-memory.dmp

    Filesize

    800KB

  • memory/3004-17-0x0000000000400000-0x00000000004C8000-memory.dmp

    Filesize

    800KB

  • memory/3004-18-0x0000000000400000-0x00000000004C8000-memory.dmp

    Filesize

    800KB

  • memory/3004-14-0x0000000000400000-0x00000000004C8000-memory.dmp

    Filesize

    800KB

  • memory/3004-20-0x0000000000400000-0x00000000004C8000-memory.dmp

    Filesize

    800KB

  • memory/3004-15-0x0000000000400000-0x00000000004C8000-memory.dmp

    Filesize

    800KB

  • memory/3004-22-0x0000000000400000-0x00000000004C8000-memory.dmp

    Filesize

    800KB

  • memory/3004-23-0x0000000000400000-0x00000000004C8000-memory.dmp

    Filesize

    800KB

  • memory/3004-24-0x0000000000400000-0x00000000004C8000-memory.dmp

    Filesize

    800KB

  • memory/3004-25-0x0000000000400000-0x00000000004C8000-memory.dmp

    Filesize

    800KB

  • memory/3004-26-0x0000000000400000-0x00000000004C8000-memory.dmp

    Filesize

    800KB

  • memory/3004-27-0x0000000000400000-0x00000000004C8000-memory.dmp

    Filesize

    800KB