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
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
tdrv22.exe
Resource
win10v2004-20260513-en
20 signatures
150 seconds
General
- Target tdrv22.exe
- Size 28.2MB
- Sample260809-pjt4daep4t
- SHA256 5ad3eebea139742e96883ff9944a267bb0675b959ea4ce2ba0a513173e41d0b0
- MD5 2c80854ca8d12711f4fc414ad6c9c053
- SHA1 455205ac52482118ac3c6323152d64a94241e915
- SHA512 d3e945c424c5398b11617e1cabfaa71b576c339efe892ac5618b013b4a24207bcf3e333ccbd423eecc24a8977b61b838da7446ef6f1061df9b13d19a8eb32038
- SSDEEP 786432:T9pI1HltT+4J5M7IJQUgttNgGMV+l4JDwM4Zx09DlQW:TAHL/5D5gxfMBJMzx0vr
- TLSH T11557130BB0D741BDD8A74CF27AAB60464736B16A3AE86E68F6D0CF0679755433C8C139
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Deletes itself 1 IoCs
pid Process 1156 WScript.exe - Executes dropped EXE 1 IoCs
pid Process 4084 PhhYiHszNA.exe - Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
pid Process 1156 WScript.exe - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tdrv22.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PhhYiHszNA.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WScript.exe - Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1875162379-3804078649-638427191-1000_Classes\Local Settings tdrv22.exe - Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 4084 PhhYiHszNA.exe 4084 PhhYiHszNA.exe 4084 PhhYiHszNA.exe 4084 PhhYiHszNA.exe 4084 PhhYiHszNA.exe 4084 PhhYiHszNA.exe 4084 PhhYiHszNA.exe 4084 PhhYiHszNA.exe 4084 PhhYiHszNA.exe 4084 PhhYiHszNA.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3308 wrote to memory of 4084 3308 tdrv22.exe 89 PID 3308 wrote to memory of 1156 3308 tdrv22.exe 90
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
- Path C:\Users\Admin\AppData\Local\Temp\PhhYiHszNA.exe
- Size 28.2MB
- SHA256 673d3e370fd1a9089f9c4c5e4ccbfce1ec7c94674096120c169cf499a5a81317
- MD5 cd31b82fc66383015512a056c8c394c2
- SHA1 1241f5117ae26e2e2d213dbfe85088a5da0617ea
- SHA512 452bad382f177a87f4a2c674e1b665218c228027598e0e68d9a36983a8c16171ad7ab51ca77466ccd0dd48c0f7f97f607eb7319f4ffaf0b23017aea3c23e5957
- SSDEEP 786432:p9pI1HltT+4J5M7IJQUgttNgGMV+l4JDwM4Zx09DlQ:pAHL/5D5gxfMBJMzx0v
- TLSH T1B357130BB0D741BDD8A74CF27AAB60464736B16A3AE86E68F6D0CF0679755433C8C139
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\tem.vbs
- Size 217B
- SHA256 7f50d29d26eea9a02c98e1b0004f68ddc10c92006f5be61e6a056c3071d43e52
- MD5 f6d56f51b61554259fe81cd661bf205b
- SHA1 1e02faffbf5a403ffdbdc0e9dd8c7846c08c1a1b
- SHA512 96d5a701a87446ff9963f253b565287010b60c4d6eee1b8b793868d729b93bf6d209408732531cd2f684da668c335589a6ecc83b38c21a425a2acafd78e3bfeb
- TLSH T110D0A7529E83C52D041B45434862840EF06008086E51B7146580DACC7B92729BB46386
- MD5 SHA1 SHA512 TLSH