Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/02/2025, 11:29

General

  • Target

    JaffaCakes118_b687eac81347ccff4ab5feadb797d065.exe

  • Size

    687KB

  • MD5

    b687eac81347ccff4ab5feadb797d065

  • SHA1

    b8e214883fba0f86d83fe2a4654d0bd1412e04eb

  • SHA256

    6735eafee2519fb7496c70fdb64e0b337593c03c814287102138ef09620078c6

  • SHA512

    bc722ff50e5c0edc7372e99a3419f5830cfd5b1953fe94cdee306d2a4a356f339e31c2f14a4171d70c127cab73d33896a30efcd898d012ee72793e2859aeffe0

  • SSDEEP

    12288:12qpRtw2UCMV8G6bmO2g3XjOGdWVqkGZF9xeIP1o1mrfYH/GUDUtAEt:12yE2UCMWb9lDOGd0I86SmTeDUtAEt

Malware Config

Extracted

Family

darkcomet

Botnet

Crypter

C2

phishingfors.no-ip.org:1604

Mutex

DC_MUTEX-KHT0FWK

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    A/AB#SHYk5E2

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

rc4.plain

Extracted

Family

darkcomet

Attributes
  • gencode

  • install

    false

  • offline_keylogger

    false

  • persistence

    false

rc4.plain

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 security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 1 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 2 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • 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 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 behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b687eac81347ccff4ab5feadb797d065.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b687eac81347ccff4ab5feadb797d065.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:944
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b687eac81347ccff4ab5feadb797d065.exe
      C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b687eac81347ccff4ab5feadb797d065.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:2136
      • 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:1500
        • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
          C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
          4⤵
          • Modifies security service
          • Windows security bypass
          • Disables RegEdit via registry modification
          • Executes dropped EXE
          • Windows security modification
          • 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
          • System policy modification
          PID:4076
          • C:\Program Files (x86)\Internet Explorer\iexplore.exe
            "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
            5⤵
              PID:3668
            • C:\Windows\explorer.exe
              "C:\Windows\explorer.exe"
              5⤵
                PID:1220

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        687KB

        MD5

        b687eac81347ccff4ab5feadb797d065

        SHA1

        b8e214883fba0f86d83fe2a4654d0bd1412e04eb

        SHA256

        6735eafee2519fb7496c70fdb64e0b337593c03c814287102138ef09620078c6

        SHA512

        bc722ff50e5c0edc7372e99a3419f5830cfd5b1953fe94cdee306d2a4a356f339e31c2f14a4171d70c127cab73d33896a30efcd898d012ee72793e2859aeffe0

      • memory/2136-10-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/2136-9-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/2136-12-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/2136-14-0x0000000002260000-0x0000000002261000-memory.dmp

        Filesize

        4KB

      • memory/2136-13-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/2136-6-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/2136-4-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/2136-2-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/2136-8-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/2136-3-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/2136-74-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-97-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-102-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-93-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-94-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-91-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-96-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-95-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-99-0x00000000007C0000-0x00000000007C1000-memory.dmp

        Filesize

        4KB

      • memory/4076-98-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-100-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-101-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-92-0x00000000007C0000-0x00000000007C1000-memory.dmp

        Filesize

        4KB

      • memory/4076-103-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-104-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-105-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-106-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-107-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-108-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-109-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-110-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-111-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB

      • memory/4076-112-0x0000000000400000-0x00000000004AF000-memory.dmp

        Filesize

        700KB