Analysis
- max time kernel
142s - max time network
113s - platform
windows11-21h2_x64 - resource
win11-20240426-en - resource tags
- submitted
24/05/2024, 08:45
General
- Target 92105da09cc48e4f81bdfe124904bef025ee94c8ed8809353b1f19193a8badf3.exe
- Size 7.3MB
- Sample240524-kn9bmsbf2t
- SHA256 92105da09cc48e4f81bdfe124904bef025ee94c8ed8809353b1f19193a8badf3
Malware Config
Signatures
- Modifies firewall policy service 2 TTPs 1 IoCs
- PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
- 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 6 IoCs
Detects Themida, an advanced Windows software protection system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in System32 directory 4 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\92105da09cc48e4f81bdfe124904bef025ee94c8ed8809353b1f19193a8badf3.exe"C:\Users\Admin\AppData\Local\Temp\92105da09cc48e4f81bdfe124904bef025ee94c8ed8809353b1f19193a8badf3.exe"1⤵
- Modifies firewall policy service
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/2556-0-0x0000000140000000-0x0000000140DCF000-memory.dmp
memory/2556-2-0x00007FFE6F220000-0x00007FFE6F2DD000-memory.dmp
memory/2556-1-0x00007FFE6F23A000-0x00007FFE6F23B000-memory.dmp
memory/2556-4-0x00007FFE6F220000-0x00007FFE6F2DD000-memory.dmp
memory/2556-3-0x00007FFE6F220000-0x00007FFE6F2DD000-memory.dmp
memory/2556-5-0x00007FFE6F220000-0x00007FFE6F2DD000-memory.dmp
memory/2556-7-0x0000000140000000-0x0000000140DCF000-memory.dmp
memory/2556-6-0x0000000140000000-0x0000000140DCF000-memory.dmp
memory/2556-9-0x0000000140000000-0x0000000140DCF000-memory.dmp
memory/2556-8-0x0000000140000000-0x0000000140DCF000-memory.dmp
memory/2556-17-0x0000000140000000-0x0000000140DCF000-memory.dmp
memory/2556-18-0x00007FFE6F23A000-0x00007FFE6F23B000-memory.dmp