Analysis

  • max time kernel
    142s
  • max time network
    147s
  • 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 18:42

General

  • Target

    JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe

  • Size

    687KB

  • MD5

    6eb71d39333e2eddb8d4387f4693e810

  • SHA1

    1a871240a1ade30e60c42442d780a246ac3b8be0

  • SHA256

    5a70d8b487c09a757e4edd118d30ac9c37d8fe24b0009289c79e060446144fd9

  • SHA512

    beb5d7a9a5f59d8f996bb093e323fde8b52df97b5124881fde19b0d2985d99ce75f3398ce3ca3ea9e2f638fde24bbaab53649af9ae1a447101400e424cf1d77e

  • SSDEEP

    12288:AUcrY8driIQHG2D1axkPKdbo4vp+II3993kdqmeCdgb0oU+XpZyjUpPy31c:jWY8BiIwG2BJ94vp+I09Voqmh+5ZyjcC

Malware Config

Signatures

  • Darkcomet

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

  • Darkcomet family
  • 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
  • UPX packed file 11 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies registry class 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.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:4332
    • C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe
      "C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.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:1940
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:4780
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 5
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:1364

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\BASEOP.EXE

    Filesize

    372KB

    MD5

    9ce2fb91af234d8397b659236b330be2

    SHA1

    3de776d6a0bc8bdf5e01297f2ed3e529ca71886a

    SHA256

    63bfa235ccb82b7fb27b6ad2ef615081457117964ffa2aedc11e2cf823657b14

    SHA512

    fa22f02a2951251a14ff46128e2d3048016879957a896849f576b7bc60d140a93561fa9d28387d3b382898a3d119170d27fe11dc5f5e2ee0e7de68d6a2c24112

  • C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe

    Filesize

    687KB

    MD5

    6eb71d39333e2eddb8d4387f4693e810

    SHA1

    1a871240a1ade30e60c42442d780a246ac3b8be0

    SHA256

    5a70d8b487c09a757e4edd118d30ac9c37d8fe24b0009289c79e060446144fd9

    SHA512

    beb5d7a9a5f59d8f996bb093e323fde8b52df97b5124881fde19b0d2985d99ce75f3398ce3ca3ea9e2f638fde24bbaab53649af9ae1a447101400e424cf1d77e

  • memory/1940-53-0x0000000000400000-0x0000000000526000-memory.dmp

    Filesize

    1.1MB

  • memory/1940-44-0x0000000000400000-0x0000000000526000-memory.dmp

    Filesize

    1.1MB

  • memory/1940-45-0x0000000002240000-0x0000000002241000-memory.dmp

    Filesize

    4KB

  • memory/1940-48-0x0000000000400000-0x0000000000526000-memory.dmp

    Filesize

    1.1MB

  • memory/1940-51-0x0000000000400000-0x0000000000526000-memory.dmp

    Filesize

    1.1MB

  • memory/1940-55-0x0000000000400000-0x0000000000526000-memory.dmp

    Filesize

    1.1MB

  • memory/1940-57-0x0000000000400000-0x0000000000526000-memory.dmp

    Filesize

    1.1MB

  • memory/1940-59-0x0000000000400000-0x0000000000526000-memory.dmp

    Filesize

    1.1MB

  • memory/1940-61-0x0000000000400000-0x0000000000526000-memory.dmp

    Filesize

    1.1MB

  • memory/4332-1-0x0000000000B40000-0x0000000000B41000-memory.dmp

    Filesize

    4KB

  • memory/4332-47-0x0000000000400000-0x0000000000526000-memory.dmp

    Filesize

    1.1MB

  • memory/4332-0-0x0000000000400000-0x0000000000526000-memory.dmp

    Filesize

    1.1MB