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Analysis

  • max time kernel
    151s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2022, 03:56

General

  • Target

    d6127652881b3b5458a520c3a310af7fca6a062f82c8b7949955a0d556d898b9.exe

  • Size

    1.1MB

  • MD5

    137319b57917990ab6f6194ce1e1bddb

  • SHA1

    81bf8fa08378780f518daebc73d0d75131551d59

  • SHA256

    d6127652881b3b5458a520c3a310af7fca6a062f82c8b7949955a0d556d898b9

  • SHA512

    92ddf23265a9c631ee421590d44fc19483cda59c7c93d055c434aad41a14d394797d5dd0765fb5baf67cf512ae336d7115215dfec9754e8d4ace7b514c8b335e

  • SSDEEP

    24576:tY3l3nbWmJVJFwSddIXvfhqbiaxvRxq9DmS+s+:tYxamdZdcBYJs+

Malware Config

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • 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). Likely ransomware behaviour.

  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d6127652881b3b5458a520c3a310af7fca6a062f82c8b7949955a0d556d898b9.exe
    "C:\Users\Admin\AppData\Local\Temp\d6127652881b3b5458a520c3a310af7fca6a062f82c8b7949955a0d556d898b9.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2836
    • C:\Users\Admin\AppData\LocalLzafYSOLLn.exe
      "C:\Users\Admin\AppData\LocalLzafYSOLLn.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4944
      • C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
        "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:620
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
          4⤵
            PID:4956
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            4⤵
              PID:4504

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

        Filesize

        723KB

        MD5

        f302d36bd8d7f3f84fe74ed6fdafaf0a

        SHA1

        634bf8474a6c38772190ade14a8e6a56451d3fe6

        SHA256

        a463d36d76190c6b4b2a21aeb1a30e1d647f70cfaa33718dd4c55d3076754468

        SHA512

        d329d3c1f8524c411917e838e45c22b04097eab8feb46c40136233703726a5e81a8fcd7113776db0cc9fff70dd81c5b89ab70b7714f3a03cf9c9a8fde87be483

      • C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

        Filesize

        723KB

        MD5

        f302d36bd8d7f3f84fe74ed6fdafaf0a

        SHA1

        634bf8474a6c38772190ade14a8e6a56451d3fe6

        SHA256

        a463d36d76190c6b4b2a21aeb1a30e1d647f70cfaa33718dd4c55d3076754468

        SHA512

        d329d3c1f8524c411917e838e45c22b04097eab8feb46c40136233703726a5e81a8fcd7113776db0cc9fff70dd81c5b89ab70b7714f3a03cf9c9a8fde87be483

      • C:\Users\Admin\AppData\LocalLzafYSOLLn.exe

        Filesize

        723KB

        MD5

        f302d36bd8d7f3f84fe74ed6fdafaf0a

        SHA1

        634bf8474a6c38772190ade14a8e6a56451d3fe6

        SHA256

        a463d36d76190c6b4b2a21aeb1a30e1d647f70cfaa33718dd4c55d3076754468

        SHA512

        d329d3c1f8524c411917e838e45c22b04097eab8feb46c40136233703726a5e81a8fcd7113776db0cc9fff70dd81c5b89ab70b7714f3a03cf9c9a8fde87be483

      • C:\Users\Admin\AppData\LocalLzafYSOLLn.exe

        Filesize

        723KB

        MD5

        f302d36bd8d7f3f84fe74ed6fdafaf0a

        SHA1

        634bf8474a6c38772190ade14a8e6a56451d3fe6

        SHA256

        a463d36d76190c6b4b2a21aeb1a30e1d647f70cfaa33718dd4c55d3076754468

        SHA512

        d329d3c1f8524c411917e838e45c22b04097eab8feb46c40136233703726a5e81a8fcd7113776db0cc9fff70dd81c5b89ab70b7714f3a03cf9c9a8fde87be483

      • memory/2836-132-0x00007FFFDE600000-0x00007FFFDF036000-memory.dmp

        Filesize

        10.2MB