Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
27/05/2024, 11:29
General
- Target d43df58a2a5f5c0553a3a80375f9388cb06b365018fc1da21d50bf777efd3a77.exe
- Size 6.1MB
- Sample240527-nls4eshf9v
- SHA256 d43df58a2a5f5c0553a3a80375f9388cb06b365018fc1da21d50bf777efd3a77
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\d43df58a2a5f5c0553a3a80375f9388cb06b365018fc1da21d50bf777efd3a77.exe"C:\Users\Admin\AppData\Local\Temp\d43df58a2a5f5c0553a3a80375f9388cb06b365018fc1da21d50bf777efd3a77.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
gpt.ini
memory/2984-0-0x0000000140000000-0x0000000140BD8000-memory.dmp
memory/2984-2-0x00007FF980D70000-0x00007FF980E2D000-memory.dmp
memory/2984-3-0x00007FF980D70000-0x00007FF980E2D000-memory.dmp
memory/2984-4-0x00007FF980D70000-0x00007FF980E2D000-memory.dmp
memory/2984-7-0x0000000140000000-0x0000000140BD8000-memory.dmp
memory/2984-6-0x0000000140000000-0x0000000140BD8000-memory.dmp
memory/2984-9-0x00007FF980D70000-0x00007FF980E2D000-memory.dmp
memory/2984-8-0x0000000140000000-0x0000000140BD8000-memory.dmp
memory/2984-1-0x00007FF980D8A000-0x00007FF980D8B000-memory.dmp
memory/2984-5-0x0000000140000000-0x0000000140BD8000-memory.dmp
memory/2984-18-0x0000000001F50000-0x0000000001FBF000-memory.dmp
memory/2984-17-0x0000000140000000-0x0000000140BD8000-memory.dmp
memory/2984-19-0x00007FF980D8A000-0x00007FF980D8B000-memory.dmp