Analysis

  • user interaction
    yes
  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/08/2026, 12:21

General

  • Target
    tdrv22.exe
  • Size 28.2MB
  • Sample260809-pjt4daep4t
  • SHA256 5ad3eebea139742e96883ff9944a267bb0675b959ea4ce2ba0a513173e41d0b0
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tdrv22.exe
    "C:\Users\Admin\AppData\Local\Temp\tdrv22.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3308
    • C:\Users\Admin\AppData\Local\Temp\PhhYiHszNA.exe
      "C:\Users\Admin\AppData\Local\Temp\PhhYiHszNA.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4084
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\tem.vbs"
      2⤵
      • Deletes itself
      • Executes a VBScript file via the Windows Script Host.
      • System Location Discovery: System Language Discovery
      PID:1156

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        PhhYiHszNA.exe

        • Path C:\Users\Admin\AppData\Local\Temp\PhhYiHszNA.exe
        • Size 28.2MB
        • SHA256 673d3e370fd1a9089f9c4c5e4ccbfce1ec7c94674096120c169cf499a5a81317
        • MD5 SHA1 SHA512 SSDEEP TLSH

        tem.vbs

        • Path C:\Users\Admin\AppData\Local\Temp\tem.vbs
        • Size 217B
        • SHA256 7f50d29d26eea9a02c98e1b0004f68ddc10c92006f5be61e6a056c3071d43e52
        • MD5 SHA1 SHA512 TLSH

        memory/4084-7-0x0000000000400000-0x000000000273B000-memory.dmp

        memory/4084-14-0x0000000010000000-0x0000000010233000-memory.dmp

        memory/4084-18-0x0000000010000000-0x0000000010233000-memory.dmp

        memory/4084-19-0x0000000010000000-0x0000000010233000-memory.dmp

        memory/4084-20-0x0000000000400000-0x000000000273B000-memory.dmp