Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    20/01/2024, 10:13

General

  • Target

    6a27d634d60cf8f2b9271c185cf76da2.exe

  • Size

    1.3MB

  • MD5

    6a27d634d60cf8f2b9271c185cf76da2

  • SHA1

    ac96a1b10ce298ee5b2a95fdf3a2eeaf200ed3b0

  • SHA256

    1d2e094fb574bb2d941f69394e1324fce3247cdfa8c5e09fee9c18a906b1e88d

  • SHA512

    9e348a29794381ac72ca20eb72f32c1f02d49011296c472e273287187364a77453573753422eed0b3f1c073b6981376474353d25b9977511622a4de1c021cdaa

  • SSDEEP

    24576:MdwQH6icoECFpWylHAy8IYQoRJCSrG1mxMJaFjEx4AFcxsv:YluoE0pWylgy8DQozCcycMJJxtFciv

Malware Config

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 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 NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6a27d634d60cf8f2b9271c185cf76da2.exe
    "C:\Users\Admin\AppData\Local\Temp\6a27d634d60cf8f2b9271c185cf76da2.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2888
    • C:\Users\Admin\AppData\Local\Temp\6a27d634d60cf8f2b9271c185cf76da2.exe
      C:\Users\Admin\AppData\Local\Temp\6a27d634d60cf8f2b9271c185cf76da2.exe
      2⤵
      • 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:2736
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • Adds Run key to start application
        PID:2028
      • C:\Windows\SysWOW64\explorer.exe
        "C:\Windows\SysWOW64\explorer.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2588
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2588 -s 176
          4⤵
          • Program crash
          PID:2724

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windupdt\winupdate.exe

          Filesize

          344KB

          MD5

          dda5c16e3bdd301ea2d7581501073ede

          SHA1

          571eb4c17a7dbe4d8f2da795bb2ba379412ecf54

          SHA256

          95e5b4e84284d0f80d94626ac2a6fb4d96e93c2ca0560c78d85734e50deda861

          SHA512

          fa55834ce4e233365fc24142b8b2759fae49fc217114189090f33ce4fc09df34b660384bfe844235c0e1c27b048fca4a857c6464094898162abe0bfd72608566

        • memory/2028-13-0x0000000000080000-0x0000000000081000-memory.dmp

          Filesize

          4KB

        • memory/2028-43-0x00000000002F0000-0x00000000002F1000-memory.dmp

          Filesize

          4KB

        • memory/2588-50-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2588-54-0x0000000000400000-0x00000000007BF000-memory.dmp

          Filesize

          3.7MB

        • memory/2588-52-0x0000000000400000-0x00000000007BF000-memory.dmp

          Filesize

          3.7MB

        • memory/2736-9-0x0000000000400000-0x00000000007BF000-memory.dmp

          Filesize

          3.7MB

        • memory/2736-11-0x0000000000280000-0x0000000000281000-memory.dmp

          Filesize

          4KB

        • memory/2736-10-0x0000000013140000-0x00000000131F6000-memory.dmp

          Filesize

          728KB

        • memory/2736-8-0x0000000013140000-0x00000000131F6000-memory.dmp

          Filesize

          728KB

        • memory/2736-5-0x0000000013140000-0x00000000131F6000-memory.dmp

          Filesize

          728KB

        • memory/2736-55-0x0000000013140000-0x00000000131F6000-memory.dmp

          Filesize

          728KB

        • memory/2736-4-0x0000000013140000-0x00000000131F6000-memory.dmp

          Filesize

          728KB

        • memory/2888-6-0x0000000000400000-0x00000000007BF000-memory.dmp

          Filesize

          3.7MB

        • memory/2888-7-0x0000000003DD0000-0x000000000418F000-memory.dmp

          Filesize

          3.7MB

        • memory/2888-0-0x0000000000400000-0x00000000007BF000-memory.dmp

          Filesize

          3.7MB