Analysis

  • max time kernel
    206s
  • max time network
    224s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/12/2022, 13:16

General

  • Target

    c9080a002d0b7151f41a005e0cb56a124470b9325d10011c61ad153ad289b9ef.exe

  • Size

    881KB

  • MD5

    30c9749d1561d80b6bf9bb3089e68bf7

  • SHA1

    420248d818c5b67f4dcdecd98034aec579b1faf6

  • SHA256

    c9080a002d0b7151f41a005e0cb56a124470b9325d10011c61ad153ad289b9ef

  • SHA512

    a33367137f33c69965498461afd1a4d6417659284a49f08ffabdb70bd1708be673f28047c695871338d6837b9f9ddcfe503565fd1ef7343ea20aa1e655fb0825

  • SSDEEP

    12288:1TZUrhi6HEVrXSDhxQp8Oj3tzilONY71SSIeogqy2GFzxN78beVapW/Uu98:Xig6kVruhxy8ctzvu0JeogybeVadU8

Malware Config

Signatures

  • Darkcomet

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

  • Modifies firewall policy service 2 TTPs 6 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c9080a002d0b7151f41a005e0cb56a124470b9325d10011c61ad153ad289b9ef.exe
    "C:\Users\Admin\AppData\Local\Temp\c9080a002d0b7151f41a005e0cb56a124470b9325d10011c61ad153ad289b9ef.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4508
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      2⤵
      • Modifies firewall policy service
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3808
    • C:\Users\Admin\AppData\Local\Temp\c9080a002d0b7151f41a005e0cb56a124470b9325d10011c61ad153ad289b9ef.exe
      "C:\Users\Admin\AppData\Local\Temp\c9080a002d0b7151f41a005e0cb56a124470b9325d10011c61ad153ad289b9ef.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4680
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        3⤵
        • Modifies firewall policy service
        • Suspicious use of AdjustPrivilegeToken
        PID:2312

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/2312-142-0x0000000000400000-0x00000000004B3000-memory.dmp

          Filesize

          716KB

        • memory/3808-135-0x0000000000400000-0x00000000004B3000-memory.dmp

          Filesize

          716KB

        • memory/3808-136-0x0000000000400000-0x00000000004B3000-memory.dmp

          Filesize

          716KB

        • memory/3808-134-0x0000000000400000-0x00000000004B3000-memory.dmp

          Filesize

          716KB

        • memory/3808-143-0x0000000000400000-0x00000000004B3000-memory.dmp

          Filesize

          716KB

        • memory/3808-146-0x0000000000400000-0x00000000004B3000-memory.dmp

          Filesize

          716KB

        • memory/4508-132-0x0000000074710000-0x0000000074CC1000-memory.dmp

          Filesize

          5.7MB

        • memory/4508-145-0x0000000074710000-0x0000000074CC1000-memory.dmp

          Filesize

          5.7MB

        • memory/4680-144-0x0000000074710000-0x0000000074CC1000-memory.dmp

          Filesize

          5.7MB

        • memory/4680-147-0x0000000074710000-0x0000000074CC1000-memory.dmp

          Filesize

          5.7MB