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Analysis

  • max time kernel
    120s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    03/01/2025, 13:45

General

  • Target

    b6a28bc8e0b60a4c9fcc7978755bf9a2085bdcca025e13d04b21beea4f7096ceN.exe

  • Size

    576KB

  • MD5

    c98a496cbab8c3521abcd832dcf368c0

  • SHA1

    38b0b63ed6bdbadb4cc0682a1be2901d23a03cc8

  • SHA256

    b6a28bc8e0b60a4c9fcc7978755bf9a2085bdcca025e13d04b21beea4f7096ce

  • SHA512

    d4ff9c0cc2447a22e47f4c63e6b887505300dfb752a8dc688c72ccc39196e43f4a86bd86a1a4efbfef5a8012584cf76b1c69ff9071d814860156ed9ebd0e1156

  • SSDEEP

    12288:+NWPkHlUkErBuxQ4uzi6d6dL/yiXLzeMdK6io8levy0FhVlpzkzDDoSA:+NWPkHlUfBgpuPdWzyuDTifgyWlX

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 29 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\b6a28bc8e0b60a4c9fcc7978755bf9a2085bdcca025e13d04b21beea4f7096ceN.exe
    "C:\Users\Admin\AppData\Local\Temp\b6a28bc8e0b60a4c9fcc7978755bf9a2085bdcca025e13d04b21beea4f7096ceN.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:524
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\YHdRA.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2388
      • 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:2768
    • 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:2940
      • 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:2996

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    135B

    MD5

    a5feca573884d76f559b996d45e8ad9a

    SHA1

    0e81a993f3af4e31d60653dc2513186f0495f1c8

    SHA256

    c98e20d46d6465febb5d29cfab51241521ea5d6cd621f5e18b9b7d6fbfac3f0f

    SHA512

    a9239648b5f15eac4d4151b6e1bdc81065eeaeb101404c2a0126f03bc87f1e6a57206bfa07a44379e9d3bba889e4497a9991ff41fb109099b01512df3dc3cbda

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

    Filesize

    576KB

    MD5

    f82d1ee070d71fbce51ddc3f1792efc7

    SHA1

    dd531188d42a069d9b6ae01fab447244e8085cea

    SHA256

    11bb853b2141932b2c557bd122f865852d918a8cdffeda672a6832a64616d2fa

    SHA512

    0700226823c39f6d6c0081677ad991cccc7efd0830ae253c59f03fcdcb4a3e218671978180c54c33b7bf838e2246c8f6aae1a774d318ee5238ad46af402987a2

  • memory/524-45-0x0000000003510000-0x00000000038D8000-memory.dmp

    Filesize

    3.8MB

  • memory/524-44-0x0000000000400000-0x00000000007C8000-memory.dmp

    Filesize

    3.8MB

  • memory/524-65-0x0000000003510000-0x00000000038D8000-memory.dmp

    Filesize

    3.8MB

  • memory/524-0-0x0000000000400000-0x00000000007C8000-memory.dmp

    Filesize

    3.8MB

  • memory/2940-51-0x0000000002AA0000-0x0000000002E68000-memory.dmp

    Filesize

    3.8MB

  • memory/2940-46-0x0000000000400000-0x00000000007C8000-memory.dmp

    Filesize

    3.8MB

  • memory/2940-56-0x0000000000400000-0x00000000007C8000-memory.dmp

    Filesize

    3.8MB

  • memory/2996-61-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-67-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-58-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-59-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-60-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-63-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-62-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-55-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-64-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-57-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-66-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-52-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-68-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-69-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-70-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-71-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-72-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-73-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-74-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-75-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-76-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-77-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2996-78-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB