Analysis

  • max time kernel
    151s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2022 08:07

General

  • Target

    43c1580313aa7402fa73a8765479800a6e5adc77e4fae6a573643d3b7163b1e3.exe

  • Size

    757KB

  • MD5

    5b6c2380d485e135ae0a557c411d9be3

  • SHA1

    1a95c16d0e67926dc90dbfe333989331a1782f47

  • SHA256

    43c1580313aa7402fa73a8765479800a6e5adc77e4fae6a573643d3b7163b1e3

  • SHA512

    921f35f39e085ee297de57fe764a893e174f21e57a90ff8480b41ed435fb53e8e91e8086005eaee792c35de24c9af7c82de5b499c9b3da3ce4d1d2a98125833a

  • SSDEEP

    12288:v9AFlAd0Z+89cxTGzO4AucTD8QP2lmFSrVs9LqnK7Qb:VAQ6Zx9cxTmOrucTIEFSpOGh

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
  • 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 WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\43c1580313aa7402fa73a8765479800a6e5adc77e4fae6a573643d3b7163b1e3.exe
    "C:\Users\Admin\AppData\Local\Temp\43c1580313aa7402fa73a8765479800a6e5adc77e4fae6a573643d3b7163b1e3.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:4960
    • C:\Windows\SysWOW64\notepad.exe
      notepad
      2⤵
      • Adds Run key to start application
      PID:3668
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      2⤵
      • Modifies firewall policy 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 WriteProcessMemory
      PID:4428
      • C:\Windows\SysWOW64\notepad.exe
        C:\Windows\SysWOW64\notepad.exe
        3⤵
          PID:1380
      • C:\Windows\SysWOW64\notepad.exe
        C:\Windows\SysWOW64\notepad.exe
        2⤵
          PID:4432

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/1380-138-0x0000000000000000-mapping.dmp

      • memory/3668-132-0x0000000000000000-mapping.dmp

      • memory/4428-133-0x0000000000000000-mapping.dmp

      • memory/4428-134-0x0000000013140000-0x000000001320F000-memory.dmp

        Filesize

        828KB

      • memory/4428-135-0x0000000013140000-0x000000001320F000-memory.dmp

        Filesize

        828KB

      • memory/4428-137-0x0000000013140000-0x000000001320F000-memory.dmp

        Filesize

        828KB

      • memory/4428-139-0x0000000013140000-0x000000001320F000-memory.dmp

        Filesize

        828KB

      • memory/4428-140-0x0000000013140000-0x000000001320F000-memory.dmp

        Filesize

        828KB

      • memory/4432-136-0x0000000000000000-mapping.dmp