Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
04/06/2026, 14:59
General
- Target XClient-Dyn.exe
- Size 377KB
- Sample260604-scyprshy4j
- SHA256 02cdf1f7cf32885dfd79463805d601acf09c4ff24b48a0d053b847e88b24e2a4
Score
10/10
Malware Config
Signatures
- Family: Xworm
Xworm is a remote access trojan written in C#.
- Detect Xworm Payload 1 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
- Looks for VMWare Tools registry key 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Loads dropped DLL 1 IoCs
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 50 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\XClient-Dyn.exe"C:\Users\Admin\AppData\Local\Temp\XClient-Dyn.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Loads dropped DLL
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
sByte.dll
memory/4672-0-0x0000000000590000-0x00000000005F4000-memory.dmp
memory/4672-1-0x0000000002740000-0x000000000274C000-memory.dmp
memory/4672-2-0x000000001B3F0000-0x000000001B400000-memory.dmp
memory/4672-6-0x0000000002760000-0x0000000002766000-memory.dmp
memory/4672-7-0x000000001B3F0000-0x000000001B400000-memory.dmp