Analysis

  • max time kernel
    96s
  • max time network
    158s
  • 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, 21:21

General

  • Target
    edc3059056a17d92764fe565ba27ab6b03ea9a9e9d31eddc74b19893526f394d.exe
  • Size 772KB
  • Sample221019-z7ghashbfm
  • SHA256 edc3059056a17d92764fe565ba27ab6b03ea9a9e9d31eddc74b19893526f394d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • Guest

C2
  • poorme.no-ip.biz:2000

Mutex
  • DC_MUTEX-V7D2UFA

Attributes
  • InstallPath

    MSDCSC\Nod32.exe

  • gencode

    1DkFyWqFtAml

  • install

    true

  • offline_keylogger

    false

  • persistence

    true

  • reg_key

    cmD

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 5 IoCs
  • Executes dropped EXE 10 IoCs
  • Checks computer location settings 2 TTPs 5 IoCs

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

  • Adds Run key to start application 2 TTPs 5 IoCs
  • Drops file in System32 directory 16 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\edc3059056a17d92764fe565ba27ab6b03ea9a9e9d31eddc74b19893526f394d.exe
    "C:\Users\Admin\AppData\Local\Temp\edc3059056a17d92764fe565ba27ab6b03ea9a9e9d31eddc74b19893526f394d.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4920
    • C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE
      "C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4988
    • C:\Windows\SysWOW64\MSDCSC\Nod32.exe
      "C:\Windows\system32\MSDCSC\Nod32.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Checks computer location settings
      • Adds Run key to start application
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3208
      • C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE
        "C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1328
      • C:\Windows\SysWOW64\MSDCSC\1DkFyWqFtAml\Nod32.exe
        "C:\Windows\system32\MSDCSC\1DkFyWqFtAml\Nod32.exe"
        3⤵
        • Modifies WinLogon for persistence
        • Executes dropped EXE
        • Checks computer location settings
        • Adds Run key to start application
        • Drops file in System32 directory
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1140
        • C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE
          "C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:3552
        • C:\Windows\SysWOW64\MSDCSC\1DkFyWqFtAml\1DkFyWqFtAml\Nod32.exe
          "C:\Windows\system32\MSDCSC\1DkFyWqFtAml\1DkFyWqFtAml\Nod32.exe"
          4⤵
          • Modifies WinLogon for persistence
          • Executes dropped EXE
          • Checks computer location settings
          • Adds Run key to start application
          • Drops file in System32 directory
          • Modifies registry class
          • Suspicious use of WriteProcessMemory
          PID:3728
          • C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE
            "C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:1852
          • C:\Windows\SysWOW64\MSDCSC\1DkFyWqFtAml\Nod32.exe
            "C:\Windows\system32\MSDCSC\1DkFyWqFtAml\Nod32.exe"
            5⤵
            • Modifies WinLogon for persistence
            • Executes dropped EXE
            • Checks computer location settings
            • Adds Run key to start application
            • Drops file in System32 directory
            • Modifies registry class
            • Suspicious use of WriteProcessMemory
            PID:532
            • C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE
              "C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE"
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:1028
            • C:\Windows\SysWOW64\MSDCSC\1DkFyWqFtAml\1DkFyWqFtAml\Nod32.exe
              "C:\Windows\system32\MSDCSC\1DkFyWqFtAml\1DkFyWqFtAml\Nod32.exe"
              6⤵
              • Executes dropped EXE
              PID:216

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        PCG.LI6

        • Path C:\ProgramData\jI82l\PCG.LI6
        • Size 3KB
        • SHA256 752d40695f51ebb9902e16e168fc276ce3671f1b0b14c03880b277089a323691
        • MD5 SHA1 SHA512

        PCG.LI6

        • Path C:\ProgramData\jI82l\PCG.LI6
        • Size 3KB
        • SHA256 0888d61b6d9ef3f7d47bc6a7f2f32bb01cafb4ecaaab49e15188358874d9122d
        • MD5 SHA1 SHA512

        PCG.LI6

        • Path C:\ProgramData\jI82l\PCG.LI6
        • Size 3KB
        • SHA256 f246f8a62a117f09c868ef93a114db44a19391941fe139b3347d2ee70c765f78
        • MD5 SHA1 SHA512

        PCG.LI6

        • Path C:\ProgramData\jI82l\PCG.LI6
        • Size 3KB
        • SHA256 3a7d9333291a9d97125024c03a4c2d27492a37be9ed2cd1edffee077ec094816
        • MD5 SHA1 SHA512

        PCG.LI6

        • Path C:\ProgramData\jI82l\PCG.LI6
        • Size 3KB
        • SHA256 93da069f8433c7a7f5fc79b045e459558da073500e08c5789b674814b3b827b5
        • MD5 SHA1 SHA512

        ANTIDOTE8VX_PATCHER.EXE

        • Path C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE
        • Size 12KB
        • SHA256 a3e8b7f48d25c8060ec90122c2c60ffc445c2f8e3976431012dba42de001ea01
        • MD5 SHA1 SHA512 SSDEEP

        ANTIDOTE8VX_PATCHER.EXE

        • Path C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE
        • Size 12KB
        • SHA256 a3e8b7f48d25c8060ec90122c2c60ffc445c2f8e3976431012dba42de001ea01
        • MD5 SHA1 SHA512 SSDEEP

        ANTIDOTE8VX_PATCHER.EXE

        • Path C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE
        • Size 12KB
        • SHA256 a3e8b7f48d25c8060ec90122c2c60ffc445c2f8e3976431012dba42de001ea01
        • MD5 SHA1 SHA512 SSDEEP

        ANTIDOTE8VX_PATCHER.EXE

        • Path C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE
        • Size 12KB
        • SHA256 a3e8b7f48d25c8060ec90122c2c60ffc445c2f8e3976431012dba42de001ea01
        • MD5 SHA1 SHA512 SSDEEP

        ANTIDOTE8VX_PATCHER.EXE

        • Path C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE
        • Size 12KB
        • SHA256 a3e8b7f48d25c8060ec90122c2c60ffc445c2f8e3976431012dba42de001ea01
        • MD5 SHA1 SHA512 SSDEEP

        ANTIDOTE8VX_PATCHER.EXE

        • Path C:\Users\Admin\AppData\Local\Temp\ANTIDOTE8VX_PATCHER.EXE
        • Size 12KB
        • SHA256 a3e8b7f48d25c8060ec90122c2c60ffc445c2f8e3976431012dba42de001ea01
        • MD5 SHA1 SHA512 SSDEEP

        Nod32.exe

        • Path C:\Windows\SysWOW64\MSDCSC\1DkFyWqFtAml\1DkFyWqFtAml\Nod32.exe
        • Size 772KB
        • SHA256 edc3059056a17d92764fe565ba27ab6b03ea9a9e9d31eddc74b19893526f394d
        • MD5 SHA1 SHA512 SSDEEP

        Nod32.exe

        • Path C:\Windows\SysWOW64\MSDCSC\1DkFyWqFtAml\1DkFyWqFtAml\Nod32.exe
        • Size 772KB
        • SHA256 edc3059056a17d92764fe565ba27ab6b03ea9a9e9d31eddc74b19893526f394d
        • MD5 SHA1 SHA512 SSDEEP

        Nod32.exe

        • Path C:\Windows\SysWOW64\MSDCSC\1DkFyWqFtAml\1DkFyWqFtAml\Nod32.exe
        • Size 772KB
        • SHA256 edc3059056a17d92764fe565ba27ab6b03ea9a9e9d31eddc74b19893526f394d
        • MD5 SHA1 SHA512 SSDEEP

        Nod32.exe

        • Path C:\Windows\SysWOW64\MSDCSC\1DkFyWqFtAml\Nod32.exe
        • Size 772KB
        • SHA256 edc3059056a17d92764fe565ba27ab6b03ea9a9e9d31eddc74b19893526f394d
        • MD5 SHA1 SHA512 SSDEEP

        Nod32.exe

        • Path C:\Windows\SysWOW64\MSDCSC\1DkFyWqFtAml\Nod32.exe
        • Size 772KB
        • SHA256 edc3059056a17d92764fe565ba27ab6b03ea9a9e9d31eddc74b19893526f394d
        • MD5 SHA1 SHA512 SSDEEP

        Nod32.exe

        • Path C:\Windows\SysWOW64\MSDCSC\1DkFyWqFtAml\Nod32.exe
        • Size 772KB
        • SHA256 edc3059056a17d92764fe565ba27ab6b03ea9a9e9d31eddc74b19893526f394d
        • MD5 SHA1 SHA512 SSDEEP

        Nod32.exe

        • Path C:\Windows\SysWOW64\MSDCSC\1DkFyWqFtAml\Nod32.exe
        • Size 772KB
        • SHA256 edc3059056a17d92764fe565ba27ab6b03ea9a9e9d31eddc74b19893526f394d
        • MD5 SHA1 SHA512 SSDEEP

        Nod32.exe

        • Path C:\Windows\SysWOW64\MSDCSC\Nod32.exe
        • Size 772KB
        • SHA256 edc3059056a17d92764fe565ba27ab6b03ea9a9e9d31eddc74b19893526f394d
        • MD5 SHA1 SHA512 SSDEEP

        Nod32.exe

        • Path C:\Windows\SysWOW64\MSDCSC\Nod32.exe
        • Size 772KB
        • SHA256 edc3059056a17d92764fe565ba27ab6b03ea9a9e9d31eddc74b19893526f394d
        • MD5 SHA1 SHA512 SSDEEP

        memory/216-176-0x0000000000400000-0x00000000004D1000-memory.dmp

        memory/216-180-0x0000000000400000-0x00000000004D1000-memory.dmp

        memory/532-167-0x0000000000400000-0x00000000004D1000-memory.dmp

        memory/532-174-0x0000000000400000-0x00000000004D1000-memory.dmp

        memory/1028-182-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/1028-171-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/1140-157-0x0000000000400000-0x00000000004D1000-memory.dmp

        memory/1140-153-0x0000000000400000-0x00000000004D1000-memory.dmp

        memory/1328-144-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/1328-178-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/1852-181-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/1852-161-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/3208-145-0x0000000000400000-0x00000000004D1000-memory.dmp

        memory/3552-179-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/3552-152-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/3728-165-0x0000000000400000-0x00000000004D1000-memory.dmp

        memory/3728-162-0x0000000000400000-0x00000000004D1000-memory.dmp

        memory/4920-132-0x0000000000400000-0x00000000004D1000-memory.dmp

        memory/4920-140-0x0000000000400000-0x00000000004D1000-memory.dmp

        memory/4988-136-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/4988-177-0x0000000000400000-0x000000000040B000-memory.dmp