General
- Target Wurst_Installer.exe
- Size 7.5MB
- Sample240416-brdvgaff2v
- SHA256 096111210234dc3917b632a0d8e1958fbbf7a9124ee1e8948fb74cb3c65fbbf0
Malware Config
Targets
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- Target Wurst_Installer.exe
- Size 7.5MB
- SHA256 096111210234dc3917b632a0d8e1958fbbf7a9124ee1e8948fb74cb3c65fbbf0
Score10/10-
Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
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UAC bypass
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Obfuscated with Agile.Net obfuscator
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
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Themida packer
Detects Themida, an advanced Windows software protection system.
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Adds Run key to start application
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Checks whether UAC is enabled
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Suspicious use of NtSetInformationThreadHideFromDebugger
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
2Virtualization/Sandbox Evasion
1