Analysis
- max time kernel
0s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
30/05/2026, 00:26
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
Install_Win11_Win10_10079_20_DMAROFF_04212026.exe
Resource
win10v2004-20260513-en
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
Install_Win11_Win10_10079_20_DMAROFF_04212026.exe
Resource
win11-20260513-en
4 signatures
150 seconds
Errors
Reason
Machine shutdown
General
- Target Install_Win11_Win10_10079_20_DMAROFF_04212026.exe
- Size 3.5MB
- Sample260530-arnh8set6k
- SHA256 4d7ba7be0eeeec1cdaa619978198258dd121acb17572faee34a784690bf08737
- MD5 93d3a51a83ea52a0da44442d0acbb052
- SHA1 d7d89a8442ec5bb78c2f51e7870dabfedc5f7eec
- SHA512 52cbec18fd4c1818c00c605ecb29f28e618d74ca41125e9699a82ad585d54dab3306269be147c3de8c13443488be3595915e7f7ea98dcbdc258f9785816c5d5f
- SSDEEP 49152:t+qXr/1HuenGgr+Nn0v8IfDOutw9SjalWfddHUEwdCV5dgoyFyaDvldAur4lH4ZK:xHgM5hJ+EjMUZdgoyFyaDvldvutQ6
- TLSH T12C069E86A26C01A8C177C17C86535E17E77D7C68633186EB13D0A9692F23BE1673A31F
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
Malware Config
Signatures
- Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\UpdateUtility\Parameters\ServiceDll = "C:\\Windows\\ntshrui.dll" Install_Win11_Win10_10079_20_DMAROFF_04212026.exe - Sets service image path in registry 3 TTPs 1 IoCs
This determines the executable launched when a service starts. It can be used to establish persistence.
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\UpdateUtility\ImagePath = "C:\\Windows\\System32\\svchost.exe -k UpdateGroup" Install_Win11_Win10_10079_20_DMAROFF_04212026.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\ntshrui.dll Install_Win11_Win10_10079_20_DMAROFF_04212026.exe File opened for modification C:\Windows\ntshrui.dll Install_Win11_Win10_10079_20_DMAROFF_04212026.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeTakeOwnershipPrivilege 3864 Install_Win11_Win10_10079_20_DMAROFF_04212026.exe Token: SeRestorePrivilege 3864 Install_Win11_Win10_10079_20_DMAROFF_04212026.exe Token: SeShutdownPrivilege 3864 Install_Win11_Win10_10079_20_DMAROFF_04212026.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\Install_Win11_Win10_10079_20_DMAROFF_04212026.exe"C:\Users\Admin\AppData\Local\Temp\Install_Win11_Win10_10079_20_DMAROFF_04212026.exe"1⤵
- Server Software Component: Terminal Services DLL
- Sets service image path in registry
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:3864
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Server Software Component
1Terminal Services DLL
1