Analysis

  • max time kernel
    205s
  • max time network
    215s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/10/2022, 13:50

General

  • Target

    8c07e75a34d360f39dbef294d9c37afb165db551358cb4edac9fe8becd451957.exe

  • Size

    659KB

  • MD5

    a0ead7d616cdf13e4e8150ad875b4655

  • SHA1

    db562ca8e596756b35dc73da58b01e930d375599

  • SHA256

    8c07e75a34d360f39dbef294d9c37afb165db551358cb4edac9fe8becd451957

  • SHA512

    6b432da9d8490a00c708b775e59ea8869f74c7db90fdc0c9ae0282b3d890e37614321a027945e2ffbca1ad4aa8dd59683e6dc14ee57668e1360f3e2ad41a16d5

  • SSDEEP

    12288:h9AFlAd0Z+89cxTGzO4AucTD8QP2lmFSrVs9LqnKu:XAQ6Zx9cxTmOrucTIEFSpOGD

Malware Config

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 2 TTPs 3 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • 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
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8c07e75a34d360f39dbef294d9c37afb165db551358cb4edac9fe8becd451957.exe
    "C:\Users\Admin\AppData\Local\Temp\8c07e75a34d360f39dbef294d9c37afb165db551358cb4edac9fe8becd451957.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4252
    • C:\Windows\SysWOW64\notepad.exe
      notepad
      2⤵
      • Adds Run key to start application
      PID:4776
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Checks BIOS information in registry
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4672
      • C:\Windows\SysWOW64\notepad.exe
        C:\Windows\SysWOW64\notepad.exe
        3⤵
          PID:2168

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • memory/4672-134-0x0000000013140000-0x00000000131F7000-memory.dmp

            Filesize

            732KB

          • memory/4672-135-0x0000000013140000-0x00000000131F7000-memory.dmp

            Filesize

            732KB

          • memory/4672-136-0x0000000013140000-0x00000000131F7000-memory.dmp

            Filesize

            732KB

          • memory/4672-138-0x0000000013140000-0x00000000131F7000-memory.dmp

            Filesize

            732KB