Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-01-2025 15:07

General

  • Target

    JaffaCakes118_6d818dc8eac5696f3169d335aa12db90.exe

  • Size

    756KB

  • MD5

    6d818dc8eac5696f3169d335aa12db90

  • SHA1

    add3b0edfc541372fbf4181ea78483de04c21c7d

  • SHA256

    3e2b70491923a6e129272cb9a61a16034c9775ef0c4602a06737dd4035f19df3

  • SHA512

    acecbf393b2029985a166ed938230f201ff33b01f35e01af42762289d1651d91b12d63f63c92b1315ec81eac5a91c007d32a3d81b9e18efbb181e4540caf42ff

  • SSDEEP

    12288:o9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hiGC:cZ1xuVVjfFoynPaVBUR8f+kN10EBJC

Malware Config

Extracted

Family

darkcomet

Botnet

newHack

C2

hackerproff.no-ip.biz:1604

Mutex

DC_MUTEX-AEEZXYW

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    kFnezybML1Fw

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Windows security bypass 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 1 IoCs
  • Windows security modification 2 TTPs 1 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).

  • System Location Discovery: System Language Discovery 1 TTPs 7 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 37 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d818dc8eac5696f3169d335aa12db90.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d818dc8eac5696f3169d335aa12db90.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:4736
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d818dc8eac5696f3169d335aa12db90.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:848
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d818dc8eac5696f3169d335aa12db90.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:2700
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4384
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:4316
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      2⤵
      • Windows security bypass
      • 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
      PID:1704
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2876

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    756KB

    MD5

    6d818dc8eac5696f3169d335aa12db90

    SHA1

    add3b0edfc541372fbf4181ea78483de04c21c7d

    SHA256

    3e2b70491923a6e129272cb9a61a16034c9775ef0c4602a06737dd4035f19df3

    SHA512

    acecbf393b2029985a166ed938230f201ff33b01f35e01af42762289d1651d91b12d63f63c92b1315ec81eac5a91c007d32a3d81b9e18efbb181e4540caf42ff

  • memory/1704-70-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/1704-79-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/1704-69-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/1704-78-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/1704-65-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/1704-66-0x00000000005C0000-0x00000000005C1000-memory.dmp

    Filesize

    4KB

  • memory/1704-67-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/1704-68-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/1704-77-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/1704-62-0x00000000005C0000-0x00000000005C1000-memory.dmp

    Filesize

    4KB

  • memory/1704-72-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/1704-71-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/1704-73-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/1704-74-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/1704-75-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/1704-76-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/2876-63-0x0000000000790000-0x0000000000791000-memory.dmp

    Filesize

    4KB

  • memory/4736-64-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/4736-0-0x00000000006C0000-0x00000000006C1000-memory.dmp

    Filesize

    4KB