Analysis
- max time kernel
149s - max time network
153s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
02/06/2026, 01:22
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
tmpsr1v7mbi.exe
Resource
win10ltsc2021-20260513-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmpsr1v7mbi.exe
Resource
win10v2004-20260513-en
10 signatures
150 seconds
Behavioral task
behavioral3
Sample
tmpsr1v7mbi.exe
Resource
win11-20260513-en
9 signatures
150 seconds
General
- Target tmpsr1v7mbi.exe
- Size 225KB
- Sample260602-bre3jaav7w
- SHA256 18721d61daa28980df1d0b130314af60f436bb7c55ac1ae89b351f630b483764
- MD5 e6d89673f46211c529e7aa80a703194a
- SHA1 457aeab6c65934a78f93bcdf80758c3fe883cb08
- SHA512 4190b1d8e6e321584f2389af685446fb6a30edaacb889530f10305b23b0814a71fa47487bcb49a3e319066bf55af837fc9a8a6bc794d5db4dae62c7ac66c98c4
- SSDEEP 6144:dA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:dATuTAnKGwUAW3ycQqgf
- TLSH T17C346B31B7D0C435F5F213F449F652ABAA393DA16B34A0CB62D126EA5A346D8EC30357
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
3/10
Malware Config
Signatures
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 2 IoCs
pid pid_target Process procid_target 5024 1812 WerFault.exe 84 3456 5044 WerFault.exe 80 - System Location Discovery: System Language Discovery 1 TTPs 2 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 tmpsr1v7mbi.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winver.exe - Modifies data under HKEY_USERS 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\27\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client" svchost.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3184 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 56 IoCs
description pid Process Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE Token: SeShutdownPrivilege 3184 Explorer.EXE Token: SeCreatePagefilePrivilege 3184 Explorer.EXE - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1812 winver.exe 5044 tmpsr1v7mbi.exe - Suspicious use of UnmapMainImage 1 IoCs
pid Process 3184 Explorer.EXE - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5044 wrote to memory of 1812 5044 tmpsr1v7mbi.exe 84 PID 1812 wrote to memory of 3184 1812 winver.exe 54 PID 5044 wrote to memory of 3184 5044 tmpsr1v7mbi.exe 54
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3184 -
C:\Users\Admin\AppData\Local\Temp\tmpsr1v7mbi.exe"C:\Users\Admin\AppData\Local\Temp\tmpsr1v7mbi.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:5044 -
C:\Windows\SysWOW64\winver.exewinver3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1812 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1812 -s 3324⤵
- Program crash
PID:5024
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 8403⤵
- Program crash
PID:3456
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman1⤵
- Modifies data under HKEY_USERS
PID:996
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1812 -ip 18121⤵PID:836
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 5044 -ip 50441⤵PID:1108