Analysis
- max time kernel
148s - max time network
117s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
08/08/2026, 00:16
General
- Target _Vrfc170749TTSEQ_7105-bbjtb.Serv.vbs
- Size 8.8MB
- Sample260808-ake9aaag24
- SHA256 1debdf6c9ad90caca19643b53030e347cff8ac4e02cfbda8d39cc4d409bd83cc
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
- 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 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\_Vrfc170749TTSEQ_7105-bbjtb.Serv.vbs"1⤵
- Executes a VBScript file via the Windows Script Host.
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\cor49veFY_sc.exe"C:\Users\Admin\AppData\Local\cor49veFY_sc.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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
cor49veFY_sc.zip
memory/2572-37-0x0000000000C90000-0x00000000063F3000-memory.dmp
memory/2572-39-0x0000000000C90000-0x00000000063F3000-memory.dmp
memory/2572-41-0x0000000000C90000-0x00000000063F3000-memory.dmp
memory/2572-44-0x0000000000C90000-0x00000000063F3000-memory.dmp