Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2024 01:46

General

  • Target

    aa8602d918951fb5458a63a0d97c90f2_JaffaCakes118.exe

  • Size

    756KB

  • MD5

    aa8602d918951fb5458a63a0d97c90f2

  • SHA1

    b444567a71dd3347573c450835ab2ed2e00b2218

  • SHA256

    e9a15e860b9821c0baff77d16dad4e5921ac02332962659afb71bb9935797bca

  • SHA512

    81747327c499007e7df6f3d9e6c4d58c5933bd3c0b97e9c598febfac18f4c29fe29e08a1731bcd420a023b021336d5e6ad9ce8fa8325cfd2d9490c5c607eb704

  • SSDEEP

    12288:j9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hmnkD:tZ1xuVVjfFoynPaVBUR8f+kN10EBakD

Malware Config

Extracted

Family

darkcomet

Botnet

ADXA

C2

nielli.no-ip.org:54201

Mutex

DC_MUTEX-QQRNZKA

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    jlEBcbiPeKLB

  • install

    true

  • offline_keylogger

    true

  • password

    y92ngbym

  • persistence

    true

  • reg_key

    WindowsHost

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 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
  • 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 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\aa8602d918951fb5458a63a0d97c90f2_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\aa8602d918951fb5458a63a0d97c90f2_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:2220
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\aa8602d918951fb5458a63a0d97c90f2_JaffaCakes118.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1672
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\aa8602d918951fb5458a63a0d97c90f2_JaffaCakes118.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:1404
    • 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:1048
      • 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:940
    • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:984
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5004

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

    Filesize

    756KB

    MD5

    aa8602d918951fb5458a63a0d97c90f2

    SHA1

    b444567a71dd3347573c450835ab2ed2e00b2218

    SHA256

    e9a15e860b9821c0baff77d16dad4e5921ac02332962659afb71bb9935797bca

    SHA512

    81747327c499007e7df6f3d9e6c4d58c5933bd3c0b97e9c598febfac18f4c29fe29e08a1731bcd420a023b021336d5e6ad9ce8fa8325cfd2d9490c5c607eb704

  • memory/984-70-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/984-79-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/984-69-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/984-78-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/984-65-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/984-66-0x00000000007E0000-0x00000000007E1000-memory.dmp

    Filesize

    4KB

  • memory/984-67-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/984-68-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/984-77-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/984-62-0x00000000007E0000-0x00000000007E1000-memory.dmp

    Filesize

    4KB

  • memory/984-72-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/984-71-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/984-73-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/984-74-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/984-75-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/984-76-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/2220-64-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/2220-0-0x00000000006C0000-0x00000000006C1000-memory.dmp

    Filesize

    4KB

  • memory/5004-63-0x0000000000990000-0x0000000000991000-memory.dmp

    Filesize

    4KB