Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
06/04/2023, 15:58
General
- Target XClient.bin.exe
- Size 50KB
- Sample230406-tegppsdg45
- SHA256 73accd4c8a54dbd0aee9321d98a00ba096ebfddd006c7a21f9cc1f050e2a1e61
Score
10/10
Malware Config
Extracted
Family
-
xworm
C2
-
212.ip.ply.gg:25428
Attributes
-
install_file
USB.exe
Signatures
- Xworm
Xworm is a remote access trojan written in C#.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Drops startup file 2 IoCs
- Executes dropped EXE 2 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). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 2 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\XClient.bin.exe"C:\Users\Admin\AppData\Local\Temp\XClient.bin.exe"1⤵
- Checks computer location settings
- Drops startup file
- 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 "XClient.bin" /tr "C:\Users\Admin\AppData\Roaming\XClient.bin.exe"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Roaming\XClient.bin.exeC:\Users\Admin\AppData\Roaming\XClient.bin.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Roaming\XClient.bin.exeC:\Users\Admin\AppData\Roaming\XClient.bin.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
XClient.bin.exe.log
XClient.bin.exe
XClient.bin.exe
XClient.bin.exe
XClient.bin.exe
memory/4424-133-0x0000000000B10000-0x0000000000B22000-memory.dmp
memory/4424-142-0x000000001C470000-0x000000001C480000-memory.dmp
memory/4424-143-0x000000001C470000-0x000000001C480000-memory.dmp