Analysis
- max time kernel
149s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
22/05/2026, 17:51
Behavioral task
behavioral1
Sample
tmpo9qs2_an.dll
Resource
win10ltsc2021-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmpo9qs2_an.dll
Resource
win10v2004-20260513-en
7 signatures
150 seconds
General
- Target tmpo9qs2_an.dll
- Size 111KB
- Sample260522-we5smset8x
- SHA256 e3932ab83bc05de2e91d321c4d479ff1aa3d10fdbd91e1687c80cc0ec88270e8
- MD5 e3564138588cba04c873bd054458f8b9
- SHA1 157ec7421e1333b714d01a750b6d5d6517a92c45
- SHA512 2a2e8ce45a928bcffdb40ebf6559c1f071bb3feccfd9cfe355e593acb559ecf84858cf4474708d311317ab08b3f981eba7c8b80dceae973839a0eec9049665c8
- SSDEEP 1536:3ui/9Xb791Wff4K84oeRnobxxm2ShclQaLMin8F5vAC+WEQbAmTjTpeyv0+gPzff:H/J7jWHT/oegcaQF5XEgHbpeyvfgT
- TLSH T17EB318414459C170E850007919CEF77E8C1EC62EBF26EAABCBD1C5949FD86B5B07E22D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Signatures
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Biegh = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Ehefga\\obubyffy.dll,DllRegisterServer" msiexec.exe - Badlisted process makes network request 6 IoCs
Network request originating from process or tool commonly abused by malware.
flow pid Process 57 2632 msiexec.exe 66 2632 msiexec.exe 68 2632 msiexec.exe 86 2632 msiexec.exe 88 2632 msiexec.exe 90 2632 msiexec.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 788 set thread context of 2632 788 regsvr32.exe 90 - 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 regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msiexec.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeSecurityPrivilege 2632 msiexec.exe Token: SeSecurityPrivilege 2632 msiexec.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5680 wrote to memory of 788 5680 regsvr32.exe 87 PID 788 wrote to memory of 2632 788 regsvr32.exe 90 PID 788 wrote to memory of 2632 788 regsvr32.exe 90
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\tmpo9qs2_an.dll1⤵
- Suspicious use of WriteProcessMemory
PID:5680 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\tmpo9qs2_an.dll2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:788 -
C:\Windows\SysWOW64\msiexec.exemsiexec.exe3⤵
- Adds Run key to start application
- Badlisted process makes network request
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2632
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