Analysis
- max time kernel
149s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
24/08/2026, 04:30
General
- Target _08838Regist-Q2K52MKBVM_S4JJInstBYRQKK.vbs
- Size 4.1MB
- Sample260824-e4vkjacp3y
- SHA256 1d33136f99f6f9121b6176602d1a66bf1839e9c4023423bf29e8d3cb909fa763
Score
9/10
Malware Config
Signatures
- Enumerates VirtualBox registry keys 2 TTPs 2 IoCs
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
- Looks for VMWare Tools registry key 2 TTPs 1 IoCs
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Executes a VBScript file via the Windows Script Host. 1 TTPs 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.
- Suspicious behavior: EnumeratesProcesses 22 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_08838Regist-Q2K52MKBVM_S4JJInstBYRQKK.vbs"1⤵
- Checks computer location settings
- Executes a VBScript file via the Windows Script Host.
- Suspicious use of WriteProcessMemory
-
C:\Users\Public\TLkcM5dTLpKK%Vfc.exe"C:\Users\Public\TLkcM5dTLpKK%Vfc.exe"2⤵
- Enumerates VirtualBox registry keys
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
TLkcM5dTLpKK%Vfc.zip
memory/1584-34-0x00000000003C0000-0x000000000555F000-memory.dmp
memory/1584-36-0x00000000003C0000-0x000000000555F000-memory.dmp
memory/1584-38-0x00000000003C0000-0x000000000555F000-memory.dmp
memory/1584-40-0x00000000003C0000-0x000000000555F000-memory.dmp
memory/1584-41-0x00000000003C0000-0x000000000555F000-memory.dmp