Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-04-2024 15:15

General

  • Target

    f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe

  • Size

    373KB

  • MD5

    f15c951b1ec384cab7e3bee192122626

  • SHA1

    e58821eb0fdc4d4eed85265ba4c495b7ddb371a1

  • SHA256

    d1b35bd0810cc6590b227a815ace1a9cf795f9a917bba2fa74ce5f1262387f23

  • SHA512

    18d83c4482e5d8762ca241f8935e88464e43801af96876a8cd2c299a07eb41dcc977afe12766b478ecc98c0dea485e186553c79dbc12df788361411961e7f946

  • SSDEEP

    6144:wdd8xHVErhawhgnzvD624tOUAZKpwx730qSgj2a76cjWLLeMdWnpQZh9h4/:wd+xHUwAK224xAtPSw2SjbMd0QZh9u

Malware Config

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 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 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 8 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Checks computer location settings
    • Adds Run key to start application
    • Checks processor information in registry
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4188
    • C:\install\taskeng.exe
      "C:\install\taskeng.exe"
      2⤵
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious use of AdjustPrivilegeToken
      PID:4720

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\install\taskeng.exe

    Filesize

    373KB

    MD5

    f15c951b1ec384cab7e3bee192122626

    SHA1

    e58821eb0fdc4d4eed85265ba4c495b7ddb371a1

    SHA256

    d1b35bd0810cc6590b227a815ace1a9cf795f9a917bba2fa74ce5f1262387f23

    SHA512

    18d83c4482e5d8762ca241f8935e88464e43801af96876a8cd2c299a07eb41dcc977afe12766b478ecc98c0dea485e186553c79dbc12df788361411961e7f946

  • memory/4188-0-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4188-1-0x00000000027E0000-0x00000000027E1000-memory.dmp

    Filesize

    4KB

  • memory/4188-35-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-42-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-45-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-38-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-39-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-40-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-41-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-36-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-43-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-44-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-37-0x00000000027D0000-0x00000000027D1000-memory.dmp

    Filesize

    4KB

  • memory/4720-46-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-47-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-48-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-49-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-50-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-51-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB

  • memory/4720-52-0x0000000000400000-0x00000000004FBE40-memory.dmp

    Filesize

    1007KB