Analysis
- max time kernel
148s - max time network
115s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
- submitted
13/08/2026, 14:40
General
- Target XClient1123.exe
- Size 87KB
- Sample260813-r2ccdssbma
- SHA256 a92f7412da931bd3a72ab2cbd87a94735dca801651a5875383a54415251d260d
Malware Config
Extracted
-
xworm
-
XWorm V5.6
-
Install_directory
%AppData%
-
install_file
msfsmsvs.exe
-
localhost
127.0.0.1
Signatures
- Family: Xworm
Xworm is a remote access trojan written in C#.
- Detect Xworm Payload 2 IoCs
- Creates a file in the Startup directory 1 TTPs 2 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 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 5 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\XClient1123.exe"C:\Users\Admin\AppData\Local\Temp\XClient1123.exe"1⤵
- Creates a file in the Startup directory
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "msfsmsvs" /tr "C:\Users\Admin\AppData\Roaming\msfsmsvs.exe"2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\msfsmsvs.exeC:\Users\Admin\AppData\Roaming\msfsmsvs.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Roaming\msfsmsvs.exe"C:\Users\Admin\AppData\Roaming\msfsmsvs.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Roaming\msfsmsvs.exe"C:\Users\Admin\AppData\Roaming\msfsmsvs.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
msfsmsvs.exe
memory/2104-11-0x00007FFBDBA10000-0x00007FFBDC3B4000-memory.dmp
memory/2104-12-0x00007FFBDBA10000-0x00007FFBDC3B4000-memory.dmp
memory/5400-0-0x00007FFBDBB9F000-0x00007FFBDBBA0000-memory.dmp
memory/5400-1-0x0000000000950000-0x000000000096C000-memory.dmp
memory/5400-2-0x00007FFBDBA10000-0x00007FFBDC3B4000-memory.dmp
memory/5400-3-0x00007FFBDBA10000-0x00007FFBDC3B4000-memory.dmp
memory/5400-8-0x00007FFBDBA10000-0x00007FFBDC3B4000-memory.dmp
memory/5400-13-0x00007FFBDBA10000-0x00007FFBDC3B4000-memory.dmp
memory/5400-14-0x00007FFBDBA10000-0x00007FFBDC3B4000-memory.dmp