Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    14/11/2026, 04:26

General

  • Target
    port80.msi
  • Size 5.0MB
  • Sample261114-e2lvlsvw3q
  • SHA256 414c9037dce4594441fcf9e835ed11520ec9b6d434718913351ef6d6ba1f547e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: SectopRAT

    SectopRAT also known as Arechclient2 is a remote access trojan first seen in November 2019.

  • Detects SectopRAT aka Arechclient2 1 IoCs
  • Drops a kernel driver into a user folder 1 TTPs 1 IoCs

    Places a kernel driver outside the normal driver folder, which installers may do while staging drivers; malware can do it before loading its own driver to gain kernel-level control.

  • Creates a file in the Startup directory 1 TTPs 2 IoCs

    A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

  • Executes dropped EXE 2 IoCs
  • Registers new Windows logon scripts automatically executed at logon. 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 8 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\port80.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4860
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Drops a kernel driver into a user folder
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5672
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4932
    • C:\Windows\system32\cmd.exe
      cmd.exe /c start AutoIt3_x64.exe Monkey2023.au3
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:1868
      • C:\Users\Admin\AppData\Local\Pattern_Similar_Bike_Mandate\AutoIt3_x64.exe
        AutoIt3_x64.exe Monkey2023.au3
        3⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:1528
        • C:\ProgramData\Monkey2023\AutoIt3_x64.exe
          "C:\ProgramData\Monkey2023\AutoIt3_x64.exe" "C:\ProgramData\Monkey2023\Monkey2023.au3"
          4⤵
          • Creates a file in the Startup directory
          • Executes dropped EXE
          • Registers new Windows logon scripts automatically executed at logon.
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:1756
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:6128

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        e58cfd1.rbs

        • Path C:\Config.Msi\e58cfd1.rbs
        • Size 24KB
        • SHA256 9e8809359098985383f67b6be12d30b1c5404624accfbc1e54d3cb597e6a95da
        • MD5 SHA1 SHA512 SSDEEP TLSH

        AutoIt3_x64.exe

        • Path C:\Users\Admin\AppData\Local\Pattern_Similar_Bike_Mandate\AutoIt3_x64.exe
        • Size 1.1MB
        • SHA256 5d69a932a077fee044b193c28e84564143f5c7e51079ab48e88fef74ab0b77b7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Monkey2023.au3

        • Path C:\Users\Admin\AppData\Local\Pattern_Similar_Bike_Mandate\Monkey2023.au3
        • Size 36KB
        • SHA256 168389740e1409e0802b6d97dae81b16ad3a93c502ecf1459700af70624ac4f2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        armv7-w64-mingw32uwp-nm.exe

        • Path C:\Users\Admin\AppData\Local\Pattern_Similar_Bike_Mandate\armv7-w64-mingw32uwp-nm.exe
        • Size 15KB
        • SHA256 b0b48a418510f50574b73ed6728dec643f09a1ad1798f0ccdbe654ca33dcfffc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        i686-w64-mingw32uwp-c++.exe

        • Path C:\Users\Admin\AppData\Local\Pattern_Similar_Bike_Mandate\i686-w64-mingw32uwp-c++.exe
        • Size 16KB
        • SHA256 9aefd53dd91fd0e6541f27170a8321903c1ce3edf44a974586beb96c7336dda2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        link.19940-cvtres.write.1.tlog

        • Path C:\Users\Admin\AppData\Local\Pattern_Similar_Bike_Mandate\link.19940-cvtres.write.1.tlog
        • Size 2B
        • SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
        • MD5 SHA1 SHA512

        mixture.sys

        • Path C:\Users\Admin\AppData\Local\Pattern_Similar_Bike_Mandate\mixture.sys
        • Size 419KB
        • SHA256 5f61ef78bbcf323de8f6c7a63f55a672bfc5fb5783604a8b88c0d934b68e051b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        e58cfd2.msi

        • Path C:\Windows\Installer\e58cfd2.msi
        • Size 5.0MB
        • SHA256 414c9037dce4594441fcf9e835ed11520ec9b6d434718913351ef6d6ba1f547e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        metadata-2

        • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
        • Size 24.1MB
        • SHA256 91b76117c239e7c9cf63286ac782cc1a97222c6519781c0af98601bcd70b862b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        {c3ab4766-6e2c-4ed9-9796-6e3a361b39c5}_OnDiskSnapshotProp

        • Path \??\Volume{7d83d395-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{c3ab4766-6e2c-4ed9-9796-6e3a361b39c5}_OnDiskSnapshotProp
        • Size 6KB
        • SHA256 f30d5ee4a194b27dd757b97bda4d7af8e82b27fd581e451f7c6fc15beb6b4836
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1756-122-0x000001EB112B0000-0x000001EB11319000-memory.dmp

        memory/1756-123-0x000001EB115F0000-0x000001EB1165C000-memory.dmp

        memory/1756-124-0x000001EB2B690000-0x000001EB2B852000-memory.dmp

        memory/1756-125-0x000001EB11660000-0x000001EB116B0000-memory.dmp

        memory/1756-126-0x000001EB11740000-0x000001EB117B6000-memory.dmp