Analysis
- user interaction
yes - max time kernel
98s - max time network
108s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260513-en - resource tags
- submitted
16/05/2026, 20:32
Errors
General
- Target XClient.exe
- Size 30KB
- Sample260516-zbph2acx2m
- SHA256 e991eb98769da4edc33a7560bcee287faa994540c8ca33341d762890dd48eef2
Malware Config
Extracted
-
xworm
-
3.0
-
8pcwko7df6.localto.net:3357
-
wZChVV5wPcnobpin
-
install_file
USB.exe
Signatures
- Family: Xworm
Xworm is a remote access trojan written in C#.
- Detect Xworm Payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 10 IoCs
- Detects Pyinstaller 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\XClient.exe"C:\Users\Admin\AppData\Local\Temp\XClient.exe"1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\btbgov.exe"C:\Users\Admin\AppData\Local\Temp\btbgov.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\btbgov.exe"C:\Users\Admin\AppData\Local\Temp\btbgov.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
VCRUNTIME140.dll
VCRUNTIME140_1.dll
_bz2.pyd
_ctypes.pyd
_decimal.pyd
_hashlib.pyd
_lzma.pyd
_socket.pyd
base_library.zip
libcrypto-3.dll
libffi-8.dll
python311.dll
pywintypes311.dll
select.pyd
unicodedata.pyd
win32api.pyd
win32gui.pyd
btbgov.exe
memory/2092-5-0x000000001DCD0000-0x000000001E1F8000-memory.dmp
memory/2092-4-0x000000001BA30000-0x000000001BA3E000-memory.dmp
memory/2092-0-0x0000000000E50000-0x0000000000E5E000-memory.dmp
memory/2092-3-0x0000000001530000-0x0000000001540000-memory.dmp
memory/2092-2-0x0000000001780000-0x000000000178A000-memory.dmp
memory/2092-1-0x0000000001530000-0x0000000001540000-memory.dmp