Analysis

  • max time kernel
    153s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-10-2022 12:49

General

  • Target

    3d04e67b03b57c0010a3c6aac0b77a267190412042cfb73c62ed53532a9160f8.exe

  • Size

    1015KB

  • MD5

    c99e3c046b196e1089652cb92b4acdd2

  • SHA1

    7ceafb7f7118307dfd1e304b2c017aaab4d538ec

  • SHA256

    3d04e67b03b57c0010a3c6aac0b77a267190412042cfb73c62ed53532a9160f8

  • SHA512

    8f3b5b4191a04a293d6f0b094261787594012870c55e43fe6d3f0d5e20438b76415611e08e7faf89ab765851498d65cfbb0bf6437098d1ec8bba765a713c6506

  • SSDEEP

    24576:/u+rKUm3C6xhvGhT72BFoSwKcid+anGwC0Nw6bPihjOGOiRVDC8X:WuQFQ/2/olKcioy5NwyPyOGv

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

adigoldinnnn.no-ip.biz:200

Mutex

DC_MUTEX-TAY064U

Attributes
  • gencode

    ydCsEuj082Up

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • 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.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3d04e67b03b57c0010a3c6aac0b77a267190412042cfb73c62ed53532a9160f8.exe
    "C:\Users\Admin\AppData\Local\Temp\3d04e67b03b57c0010a3c6aac0b77a267190412042cfb73c62ed53532a9160f8.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3992
    • C:\Users\Admin\AppData\Local\Temp\3d04e67b03b57c0010a3c6aac0b77a267190412042cfb73c62ed53532a9160f8.exe
      "C:\Users\Admin\AppData\Local\Temp\3d04e67b03b57c0010a3c6aac0b77a267190412042cfb73c62ed53532a9160f8.exe"
      2⤵
        PID:3944
      • C:\Users\Admin\AppData\Local\Temp\3d04e67b03b57c0010a3c6aac0b77a267190412042cfb73c62ed53532a9160f8.exe
        "C:\Users\Admin\AppData\Local\Temp\3d04e67b03b57c0010a3c6aac0b77a267190412042cfb73c62ed53532a9160f8.exe"
        2⤵
          PID:4604
        • C:\Users\Admin\AppData\Local\Temp\3d04e67b03b57c0010a3c6aac0b77a267190412042cfb73c62ed53532a9160f8.exe
          "C:\Users\Admin\AppData\Local\Temp\3d04e67b03b57c0010a3c6aac0b77a267190412042cfb73c62ed53532a9160f8.exe"
          2⤵
          • Modifies WinLogon for persistence
          • Drops file in Drivers directory
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:3280
          • C:\Users\Admin\AppData\Local\Temp\3d04e67b03b57c0010a3c6aac0b77a267190412042cfb73c62ed53532a9160f8.exe
            "C:\Users\Admin\AppData\Local\Temp\3d04e67b03b57c0010a3c6aac0b77a267190412042cfb73c62ed53532a9160f8.exe"
            3⤵
              PID:4084
            • C:\Users\Admin\AppData\Local\Temp\3d04e67b03b57c0010a3c6aac0b77a267190412042cfb73c62ed53532a9160f8.exe
              "C:\Users\Admin\AppData\Local\Temp\3d04e67b03b57c0010a3c6aac0b77a267190412042cfb73c62ed53532a9160f8.exe"
              3⤵
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              PID:1688
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3992 -s 1192
            2⤵
            • Program crash
            PID:3020
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3992 -ip 3992
          1⤵
            PID:4064

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1688-142-0x0000000000000000-mapping.dmp

          • memory/1688-147-0x0000000000400000-0x00000000004B2000-memory.dmp

            Filesize

            712KB

          • memory/1688-146-0x0000000000400000-0x00000000004B2000-memory.dmp

            Filesize

            712KB

          • memory/1688-145-0x0000000000400000-0x00000000004B2000-memory.dmp

            Filesize

            712KB

          • memory/1688-144-0x0000000000400000-0x00000000004B2000-memory.dmp

            Filesize

            712KB

          • memory/1688-143-0x0000000000400000-0x00000000004B2000-memory.dmp

            Filesize

            712KB

          • memory/3280-136-0x0000000000000000-mapping.dmp

          • memory/3280-140-0x0000000074F10000-0x00000000754C1000-memory.dmp

            Filesize

            5.7MB

          • memory/3280-138-0x0000000074F10000-0x00000000754C1000-memory.dmp

            Filesize

            5.7MB

          • memory/3280-137-0x0000000000400000-0x0000000000498000-memory.dmp

            Filesize

            608KB

          • memory/3944-134-0x0000000000000000-mapping.dmp

          • memory/3992-139-0x0000000074F10000-0x00000000754C1000-memory.dmp

            Filesize

            5.7MB

          • memory/3992-132-0x0000000074F10000-0x00000000754C1000-memory.dmp

            Filesize

            5.7MB

          • memory/3992-133-0x0000000074F10000-0x00000000754C1000-memory.dmp

            Filesize

            5.7MB

          • memory/4084-141-0x0000000000000000-mapping.dmp

          • memory/4604-135-0x0000000000000000-mapping.dmp