Analysis
- max time kernel
148s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
12/08/2026, 17:07
General
- Target wrah.exe
- Size 75KB
- Sample260812-vm262sbr7s
- SHA256 eefbf313a5c4357e892ae567526265b356aeacbc12c76119b51ebd58a0ce858a
Malware Config
Signatures
- Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
- Looks for VMWare Tools registry key 2 TTPs 1 IoCs
- Looks for VMWare services registry key. 1 TTPs 1 IoCs
- Creates a file in the Startup directory 1 TTPs 1 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Executes dropped EXE 1 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 1 TTPs 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 2 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.
Processes
-
C:\Users\Admin\AppData\Local\Temp\wrah.exe"C:\Users\Admin\AppData\Local\Temp\wrah.exe"1⤵
- Enumerates VirtualBox registry keys
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Looks for VMWare services registry key.
- Creates a file in the Startup directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exeschtasks.exe /create /tn "WindowsSecurityHealthCheck" /tr "C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService.exe" /sc onlogon /rl limited /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService.exeC:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService.exe1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
WindowsSecurityHealthService.exe
memory/2336-7-0x00007FF73C4D0000-0x00007FF73C4EA000-memory.dmp
memory/4244-0-0x00007FF6751E0000-0x00007FF6751FA000-memory.dmp
memory/4244-8-0x00007FF6751E0000-0x00007FF6751FA000-memory.dmp
memory/4244-9-0x00007FF6751E0000-0x00007FF6751FA000-memory.dmp
memory/4244-10-0x00007FF6751E0000-0x00007FF6751FA000-memory.dmp