Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-07-2024 23:03

General

  • Target

    761b2ea3d2f05a0b94de32442ff9cd05_JaffaCakes118.exe

  • Size

    661KB

  • MD5

    761b2ea3d2f05a0b94de32442ff9cd05

  • SHA1

    a03f6454f45d207fb5821f68d4d19e76391876c0

  • SHA256

    3bb11a7d30a3e352b6a1919cdae64b58b8ed6581b5c3dc076a3f563ee88c4d86

  • SHA512

    3208510fef115b1abaf9eec90c5540a50d239583fb6fce0e6297950deb44936c653d273677ac9e50193a26199ae297162bf5aab3ce1f1bb67eca5b366994b70b

  • SSDEEP

    12288:IXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkMh/fy452U3:unAw2WWeFcfbP9VPSPMTSPL/rWvzq4JH

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

jojojijijojo.no-ip.org:7050

Mutex

DC_MUTEX-VJCE7NK

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    Qm8S8Vk13fvr

  • install

    true

  • offline_keylogger

    false

  • password

    mutexvisa

  • 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
  • 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 3 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 48 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\761b2ea3d2f05a0b94de32442ff9cd05_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\761b2ea3d2f05a0b94de32442ff9cd05_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4696
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\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 WriteProcessMemory
      PID:3120
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5040

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    661KB

    MD5

    761b2ea3d2f05a0b94de32442ff9cd05

    SHA1

    a03f6454f45d207fb5821f68d4d19e76391876c0

    SHA256

    3bb11a7d30a3e352b6a1919cdae64b58b8ed6581b5c3dc076a3f563ee88c4d86

    SHA512

    3208510fef115b1abaf9eec90c5540a50d239583fb6fce0e6297950deb44936c653d273677ac9e50193a26199ae297162bf5aab3ce1f1bb67eca5b366994b70b

  • memory/3120-23-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3120-14-0x0000000002850000-0x0000000002851000-memory.dmp

    Filesize

    4KB

  • memory/3120-21-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3120-22-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3120-16-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3120-17-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3120-18-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3120-19-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3120-29-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3120-20-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3120-28-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3120-27-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3120-24-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3120-25-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/3120-26-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/4696-0-0x00000000006B0000-0x00000000006B1000-memory.dmp

    Filesize

    4KB

  • memory/4696-13-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/5040-15-0x0000000000670000-0x0000000000671000-memory.dmp

    Filesize

    4KB