Analysis

  • max time kernel
    149s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2024 05:54

General

  • Target

    6e60134d0fe3e65aa45deb9c3e84b1a4_JaffaCakes118.exe

  • Size

    236KB

  • MD5

    6e60134d0fe3e65aa45deb9c3e84b1a4

  • SHA1

    0f221294e3937bcc25691f5d707889d8c5f11eee

  • SHA256

    df0cad739821bec80626a98c9bc52d501ceda97649bb1f8decff2bd97f41f68a

  • SHA512

    aa68c008beb86baa0894dda845e966c83598fff08f41ae7d37e6f2d681178e919975e520e6fce649362afe75cf55eff14a1b8a6d645bc440a3251fdd6611f7c0

  • SSDEEP

    6144:gmDUj24gqU85IzrFA9NfmDuLpNr5NhWudrWDh:gqUj2LkizrzDujVNhWucD

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

mkidech.zapto.org:1604

Mutex

DC_MUTEX-NB20Q2J

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    STjsNl3PnbGg

  • install

    true

  • offline_keylogger

    true

  • 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 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 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6e60134d0fe3e65aa45deb9c3e84b1a4_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\6e60134d0fe3e65aa45deb9c3e84b1a4_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:4328
    • C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Desktop\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
      PID:2488

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    236KB

    MD5

    6e60134d0fe3e65aa45deb9c3e84b1a4

    SHA1

    0f221294e3937bcc25691f5d707889d8c5f11eee

    SHA256

    df0cad739821bec80626a98c9bc52d501ceda97649bb1f8decff2bd97f41f68a

    SHA512

    aa68c008beb86baa0894dda845e966c83598fff08f41ae7d37e6f2d681178e919975e520e6fce649362afe75cf55eff14a1b8a6d645bc440a3251fdd6611f7c0

  • memory/2488-24-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2488-16-0x0000000002180000-0x0000000002181000-memory.dmp

    Filesize

    4KB

  • memory/2488-17-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2488-19-0x0000000002180000-0x0000000002181000-memory.dmp

    Filesize

    4KB

  • memory/2488-20-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2488-22-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2488-26-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2488-28-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/2488-30-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/4328-1-0x00000000006D0000-0x00000000006D1000-memory.dmp

    Filesize

    4KB

  • memory/4328-15-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB

  • memory/4328-0-0x0000000000400000-0x00000000004B8000-memory.dmp

    Filesize

    736KB