Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/03/2025, 19:49

General

  • Target

    JaffaCakes118_96002958065cd8da791c619e56ec787a.exe

  • Size

    945KB

  • MD5

    96002958065cd8da791c619e56ec787a

  • SHA1

    093fcf787835cf21fd45b018fb5ea18a0d99eb45

  • SHA256

    ed31c658371d0c3de5c542de9918ff6257d7f36b790fa96db7303c83bfaa7cf0

  • SHA512

    4d21766d1d99955ca30a58d64b3b068bbcb2fa613f29c23e866d430723b73e2463e653a7e6a29bb996076386b347ba78521cf8a0ee17494b0640da66769c0aa4

  • SSDEEP

    24576:BvrC5uWAyNAF6MIOOIgBWZz6OQidOLGgN4XXPHNDKW:BzYNAF6MIOPgI1QioFNetKW

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 BIOS information in registry 2 TTPs 6 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • UPX packed file 14 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 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 21 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96002958065cd8da791c619e56ec787a.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96002958065cd8da791c619e56ec787a.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1884
    • C:\PRO\nero.exe
      "C:\PRO\nero.exe"
      2⤵
      • Checks BIOS information in registry
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious use of AdjustPrivilegeToken
      PID:2656
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\PRO\nero.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5092
    • C:\PRO\nero.exe
      C:\PRO\nero.exe
      2⤵
      • Checks BIOS information in registry
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4076

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PRO\nero.exe

    Filesize

    945KB

    MD5

    96002958065cd8da791c619e56ec787a

    SHA1

    093fcf787835cf21fd45b018fb5ea18a0d99eb45

    SHA256

    ed31c658371d0c3de5c542de9918ff6257d7f36b790fa96db7303c83bfaa7cf0

    SHA512

    4d21766d1d99955ca30a58d64b3b068bbcb2fa613f29c23e866d430723b73e2463e653a7e6a29bb996076386b347ba78521cf8a0ee17494b0640da66769c0aa4

  • memory/1884-15-0x0000000032800000-0x0000000032811000-memory.dmp

    Filesize

    68KB

  • memory/1884-0-0x0000000032800000-0x0000000032811000-memory.dmp

    Filesize

    68KB

  • memory/1884-3-0x0000000032800000-0x0000000032811000-memory.dmp

    Filesize

    68KB

  • memory/1884-2-0x0000000032800000-0x0000000032811000-memory.dmp

    Filesize

    68KB

  • memory/1884-1-0x0000000032800000-0x0000000032811000-memory.dmp

    Filesize

    68KB

  • memory/2656-21-0x0000000034260000-0x0000000034271000-memory.dmp

    Filesize

    68KB

  • memory/2656-22-0x0000000034260000-0x0000000034271000-memory.dmp

    Filesize

    68KB

  • memory/2656-18-0x0000000034260000-0x0000000034271000-memory.dmp

    Filesize

    68KB

  • memory/2656-19-0x0000000034260000-0x0000000034271000-memory.dmp

    Filesize

    68KB

  • memory/2656-20-0x0000000034260000-0x0000000034271000-memory.dmp

    Filesize

    68KB

  • memory/4076-13-0x0000000032770000-0x0000000032781000-memory.dmp

    Filesize

    68KB

  • memory/4076-10-0x0000000032770000-0x0000000032781000-memory.dmp

    Filesize

    68KB

  • memory/4076-11-0x0000000032770000-0x0000000032781000-memory.dmp

    Filesize

    68KB

  • memory/4076-12-0x0000000032770000-0x0000000032781000-memory.dmp

    Filesize

    68KB