Analysis
- max time kernel
898s - max time network
490s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
27/10/2026, 12:38
General
- Target steamapps/common/Osta/Engine/Extras/Redist/en-us/UEPrereqSetup_x64.exe
- Size 48.2MB
- Sample261027-pvccpstyaw
- SHA256 a34cf70cc9c5520db58dd4c0344d4c5a645ffdd3055f123a8affac456cef6453
Score
4/10
Malware Config
Signatures
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Loads dropped DLL 1 IoCs
- 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.
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\steamapps\common\Osta\Engine\Extras\Redist\en-us\UEPrereqSetup_x64.exe"C:\Users\Admin\AppData\Local\Temp\steamapps\common\Osta\Engine\Extras\Redist\en-us\UEPrereqSetup_x64.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\steamapps\common\Osta\Engine\Extras\Redist\en-us\UEPrereqSetup_x64.exe"C:\Users\Admin\AppData\Local\Temp\steamapps\common\Osta\Engine\Extras\Redist\en-us\UEPrereqSetup_x64.exe" -burn.unelevated BurnPipe.{604AE1B4-C2C1-417B-B9FD-A358F668A3A8} {7E60D17B-2063-4630-B22B-3B512A3A942B} 51882⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
Banner.bmp
LogoSide.png
wixstdba.dll