Analysis
- user interaction
yes - max time kernel
148s - max time network
117s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-es - resource tags
- submitted
02/10/2026, 23:26
General
- Target ARCH.vbs
- Size 4.2MB
- Sample261002-3esxeaxt5m
- SHA256 ec61a72c66e8b694703695d058d8afd825cee7ced4232c992d452a608b71a235
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
- 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).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- 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 SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
- Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ARCH.vbs"1⤵
- Executes a VBScript file via the Windows Script Host.
- Suspicious use of WriteProcessMemory
-
C:\Users\Public\ulJ38fHcHR8UXtp.exe"C:\Users\Public\ulJ38fHcHR8UXtp.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
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
ulJ38fHcHR8UXtp.zip
memory/260-39-0x00000000003A0000-0x0000000005A96000-memory.dmp
memory/260-41-0x00000000003A0000-0x0000000005A96000-memory.dmp
memory/260-43-0x00000000003A0000-0x0000000005A96000-memory.dmp
memory/260-46-0x00000000003A0000-0x0000000005A96000-memory.dmp
memory/260-52-0x00000000003A0000-0x0000000005A96000-memory.dmp