Analysis
- max time kernel
149s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
29/05/2026, 09:06
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
tmpz91vtf21.exe
Resource
win10ltsc2021-20260513-en
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmpz91vtf21.exe
Resource
win10v2004-20260513-en
9 signatures
150 seconds
Behavioral task
behavioral3
Sample
tmpz91vtf21.exe
Resource
win11-20260513-en
9 signatures
150 seconds
General
- Target tmpz91vtf21.exe
- Size 225KB
- Sample260529-k264fafz91
- SHA256 47ba95732daf060d5dc0acddda39625f73d7cf85d2d9b8c4747c7cc42001668f
- MD5 9c19f31a2d63158ae267a0c6fb9cc7a0
- SHA1 237c0237a5b5da3245d254f4f0ed9b4c3f8fd16e
- SHA512 d855acc65c31b3b644110fef753572afca2dd606dc7f1b3ce3ca9a8d94710c610572f6fefc15c2bf630908a31a9ec8956f71037305c43e42d89baa5a055c8f8c
- SSDEEP 6144:RA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:RATuTAnKGwUAW3ycQqgf
- TLSH T1DE346B31B7D0C435F5F213F449F652ABAA393DA16B34A0CB62D126EA5A346D8EC30357
- 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 2196 4816 WerFault.exe 107 1152 2236 WerFault.exe 88 - 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 tmpz91vtf21.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 3288 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeShutdownPrivilege 3288 Explorer.EXE Token: SeCreatePagefilePrivilege 3288 Explorer.EXE Token: SeShutdownPrivilege 3288 Explorer.EXE Token: SeCreatePagefilePrivilege 3288 Explorer.EXE Token: SeShutdownPrivilege 3288 Explorer.EXE Token: SeCreatePagefilePrivilege 3288 Explorer.EXE - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4816 winver.exe 2236 tmpz91vtf21.exe - Suspicious use of UnmapMainImage 1 IoCs
pid Process 3288 Explorer.EXE - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2236 wrote to memory of 4816 2236 tmpz91vtf21.exe 107 PID 4816 wrote to memory of 3288 4816 winver.exe 55 PID 2236 wrote to memory of 3288 2236 tmpz91vtf21.exe 55
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3288 -
C:\Users\Admin\AppData\Local\Temp\tmpz91vtf21.exe"C:\Users\Admin\AppData\Local\Temp\tmpz91vtf21.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2236 -
C:\Windows\SysWOW64\winver.exewinver3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4816 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 3004⤵
- Program crash
PID:2196
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2236 -s 8603⤵
- Program crash
PID:1152
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman1⤵
- Modifies data under HKEY_USERS
PID:1380
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4816 -ip 48161⤵PID:5008
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2236 -ip 22361⤵PID:1836