Analysis
- user interaction
yes - max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
02/11/2026, 10:57
General
- Target 0543862271.js
- Size 2.3MB
- Sample261102-m2pkhag13x
- SHA256 bf01e1afb1c74fa05ad9f0d62b5f331a6e82e344b2b7bbc1a6db1aaece7de7f0
Malware Config
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 1 IoCs
- Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 2 IoCs
- Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Program crash 1 IoCs
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- NTFS ADS 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\0543862271.js1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c echo. > "C:\Users\Admin\AppData\Local\Temp\0543862271.js:Zone.Identifier"2⤵
- Executes a command shell one-liner
- NTFS ADS
-
-
C:\Users\Admin\Documents\UUZSSZFNUMCLKDBU.exe"C:\Users\Admin\Documents\UUZSSZFNUMCLKDBU.exe" C:\Users\Admin\Documents\UBDKLCMUNFZSSZUU2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4960 -s 15723⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4960 -ip 49601⤵
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2JavaScript
1Windows Command Shell
1Replay Monitor
Loading Replay Monitor...
Downloads
UBDKLCMUNFZSSZUU
UUZSSZFNUMCLKDBU.exe
memory/4960-11-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-12-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-13-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-15-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-17-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-16-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-14-0x00000000026C0000-0x00000000026C1000-memory.dmp
memory/4960-20-0x00000000029C0000-0x00000000029C1000-memory.dmp
memory/4960-21-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-22-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-19-0x00000000029B0000-0x00000000029B1000-memory.dmp
memory/4960-18-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-23-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-27-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-29-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-28-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-26-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-25-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-24-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-30-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-31-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-33-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-32-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-35-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-34-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-36-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-40-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-39-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-74-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-73-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-72-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-71-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-70-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-69-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-68-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-67-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-66-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-65-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-64-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-63-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-62-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-61-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-60-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-59-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-58-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-57-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-56-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-55-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-54-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-53-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-52-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-51-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-50-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-49-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-48-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-47-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-46-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-45-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-44-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-43-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-42-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-41-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-38-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-37-0x000000007FE40000-0x000000007FE50000-memory.dmp
memory/4960-155-0x0000000029990000-0x00000000299A0000-memory.dmp
memory/4960-156-0x00000000298F0000-0x0000000029900000-memory.dmp
memory/4960-157-0x00000000299A0000-0x0000000029A3C000-memory.dmp
memory/4960-158-0x0000000029A40000-0x0000000029AA6000-memory.dmp
memory/4960-159-0x0000000029990000-0x00000000299A0000-memory.dmp