Analysis
- max time kernel
149s - max time network
115s - platform
windows11-21h2_x64 - resource
win11-20250619-en - resource tags
- submitted
09/05/2026, 08:37
General
- Target a05d57bff6649fde815b6d476f1c711ffcf250230d9a0abf7c07eb544d5b6e3c.exe
- Size 4.0MB
- Sample260509-kh6cssgy3l
- SHA256 a05d57bff6649fde815b6d476f1c711ffcf250230d9a0abf7c07eb544d5b6e3c
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 3 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- Modifies Internet Explorer settings 1 TTPs 6 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a05d57bff6649fde815b6d476f1c711ffcf250230d9a0abf7c07eb544d5b6e3c.exe"C:\Users\Admin\AppData\Local\Temp\a05d57bff6649fde815b6d476f1c711ffcf250230d9a0abf7c07eb544d5b6e3c.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/2492-0-0x0000000000130000-0x0000000000A61000-memory.dmp
memory/2492-2-0x0000000000130000-0x0000000000A61000-memory.dmp
memory/2492-3-0x0000000000130000-0x0000000000A61000-memory.dmp
memory/2492-4-0x0000000000130000-0x0000000000A61000-memory.dmp
memory/2492-5-0x0000000000130000-0x0000000000A61000-memory.dmp
memory/2492-6-0x0000000000130000-0x0000000000A61000-memory.dmp
memory/2492-7-0x0000000000130000-0x0000000000A61000-memory.dmp
memory/2492-8-0x0000000000130000-0x0000000000A61000-memory.dmp
memory/2492-9-0x0000000000130000-0x0000000000A61000-memory.dmp
memory/2492-10-0x0000000000130000-0x0000000000A61000-memory.dmp
memory/2492-11-0x0000000000192000-0x0000000000193000-memory.dmp
memory/2492-12-0x0000000000130000-0x0000000000A61000-memory.dmp
memory/2492-15-0x0000000000130000-0x0000000000A61000-memory.dmp
memory/2492-20-0x0000000000130000-0x0000000000A61000-memory.dmp