Analysis
- max time kernel
148s - max time network
117s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
22/07/2026, 02:35
General
- Target R3nzSkin.dll
- Size 3.9MB
- Sample260722-c3fzmshh37
- SHA256 edf6d92cb2a2b7d7ccc01031ca2224fec5a2966b004c3eedd83be697e8d3a9c3
Score
9/10
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Themida packer 5 IoCs
Detects Themida, an advanced Windows software protection system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\R3nzSkin.dll,#11⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/800-0-0x0000000180000000-0x0000000180A23000-memory.dmp
memory/800-1-0x0000000180000000-0x0000000180A23000-memory.dmp
memory/800-2-0x0000000180000000-0x0000000180A23000-memory.dmp
memory/800-3-0x0000000180000000-0x0000000180A23000-memory.dmp
memory/800-4-0x0000000180000000-0x0000000180A23000-memory.dmp