Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
15/04/2026, 08:57
General
- Target f91e8ba9b1cd1eb9dc0d3ddae8caa8e938b71a943442a54d2bf48b11fbd89e30.exe
- Size 3.3MB
- Sample260415-kwvs8aas5k
- SHA256 f91e8ba9b1cd1eb9dc0d3ddae8caa8e938b71a943442a54d2bf48b11fbd89e30
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 1 IoCs
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f91e8ba9b1cd1eb9dc0d3ddae8caa8e938b71a943442a54d2bf48b11fbd89e30.exe"C:\Users\Admin\AppData\Local\Temp\f91e8ba9b1cd1eb9dc0d3ddae8caa8e938b71a943442a54d2bf48b11fbd89e30.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3976 -s 6482⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3976 -ip 39761⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/3976-0-0x0000000000400000-0x0000000000D94000-memory.dmp
memory/3976-1-0x0000000000400000-0x0000000000D94000-memory.dmp
memory/3976-2-0x0000000000400000-0x0000000000D94000-memory.dmp
memory/3976-4-0x00000000007BE000-0x00000000007BF000-memory.dmp
memory/3976-3-0x0000000000400000-0x0000000000D94000-memory.dmp
memory/3976-5-0x0000000000400000-0x0000000000D94000-memory.dmp