Analysis

  • max time kernel
    120s
  • max time network
    20s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-12-2024 19:39

General

  • Target

    0fbee246d15b6edd2dda915775e95d6b50afeede3f532f8e938ada928031b5ddN.exe

  • Size

    3.8MB

  • MD5

    10372f7dac078227c18a03af76ae7b80

  • SHA1

    5588b19f0b94b96954f3244548ae92dd83f275fd

  • SHA256

    0fbee246d15b6edd2dda915775e95d6b50afeede3f532f8e938ada928031b5dd

  • SHA512

    cae544c65bbb86878e476aea2fb1d7c843cd737625780999dc2b9143ea55deb8a3dcfa0bff4a0f0b880402417843770322247f576b9e84bd56750a47abefe9df

  • SSDEEP

    98304:3i4hTLOMtHDMlANqnfVGPyhcMYg4lSiSLCQrdGLcjFjj/eWKS5h7EleIljztU/qg:3i4hTLOMtHDMlANqnfVGPyhcMYg4lSii

Malware Config

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 28 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0fbee246d15b6edd2dda915775e95d6b50afeede3f532f8e938ada928031b5ddN.exe
    "C:\Users\Admin\AppData\Local\Temp\0fbee246d15b6edd2dda915775e95d6b50afeede3f532f8e938ada928031b5ddN.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2440
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\UDTon.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2560
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Mcrosoft" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\mcsft.exe" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:1748
    • C:\Users\Admin\AppData\Roaming\mcsft.exe
      "C:\Users\Admin\AppData\Roaming\mcsft.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2500
      • C:\Users\Admin\AppData\Roaming\mcsft.exe
        C:\Users\Admin\AppData\Roaming\mcsft.exe
        3⤵
        • Checks BIOS information in registry
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\UDTon.bat

    Filesize

    135B

    MD5

    a5feca573884d76f559b996d45e8ad9a

    SHA1

    0e81a993f3af4e31d60653dc2513186f0495f1c8

    SHA256

    c98e20d46d6465febb5d29cfab51241521ea5d6cd621f5e18b9b7d6fbfac3f0f

    SHA512

    a9239648b5f15eac4d4151b6e1bdc81065eeaeb101404c2a0126f03bc87f1e6a57206bfa07a44379e9d3bba889e4497a9991ff41fb109099b01512df3dc3cbda

  • C:\Users\Admin\AppData\Roaming\mcsft.exe

    Filesize

    3.8MB

    MD5

    6a08a79a3f11fb2e7a24c9bd28f61094

    SHA1

    b55fed8059000e7f2d9e02da1455972a8210e8d2

    SHA256

    c79884ed6c72b22960759d37fef86a60c9b476a5afd76ffc1edee1bf38b3217c

    SHA512

    41033a38c50ecf90301eb6ca3f74c3cb19bd35c92315221ab500b82d0a08b7f1ba024b08a6e1d7d1ca7238119480060213eabcef9edc1670d4a4429ff3e93add

  • memory/2440-43-0x0000000000400000-0x00000000007C9000-memory.dmp

    Filesize

    3.8MB

  • memory/2440-2-0x0000000000400000-0x00000000007C9000-memory.dmp

    Filesize

    3.8MB

  • memory/2500-52-0x0000000000400000-0x00000000007C9000-memory.dmp

    Filesize

    3.8MB

  • memory/2500-49-0x0000000002B10000-0x0000000002ED9000-memory.dmp

    Filesize

    3.8MB

  • memory/2500-48-0x0000000000400000-0x00000000007C9000-memory.dmp

    Filesize

    3.8MB

  • memory/2772-59-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-63-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-53-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-55-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-58-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-61-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-60-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-54-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-57-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-56-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-62-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-50-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-64-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-65-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-66-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-67-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-68-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-69-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-70-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-71-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-72-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-73-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2772-74-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB