Analysis
- max time kernel
148s - max time network
127s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
02/11/2026, 13:34
General
- Target 0543862271.JS.js
- Size 2.3MB
- Sample261102-qvblvaat81
- SHA256 bf01e1afb1c74fa05ad9f0d62b5f331a6e82e344b2b7bbc1a6db1aaece7de7f0
Malware Config
Signatures
- Family: Xworm
Xworm is a remote access trojan written in C#.
- Detect Xworm Payload 1 IoCs
- 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.
- Modifies registry class 2 IoCs
- 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.JS.js1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c echo. > "C:\Users\Admin\AppData\Local\Temp\0543862271.JS.js:Zone.Identifier"2⤵
- Executes a command shell one-liner
- NTFS ADS
-
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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 1416 -s 17083⤵
- Program crash
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-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1416 -ip 14161⤵
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/1416-10-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-11-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-16-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-15-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-14-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-13-0x0000000002640000-0x0000000002641000-memory.dmp
memory/1416-12-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-21-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-20-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-19-0x0000000002B80000-0x0000000002B81000-memory.dmp
memory/1416-18-0x0000000002B70000-0x0000000002B71000-memory.dmp
memory/1416-17-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-22-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-23-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-30-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-32-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-31-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-29-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-28-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-27-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-36-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-35-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-34-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-33-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-26-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-25-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-24-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-39-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-73-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-72-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-71-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-70-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-69-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-151-0x0000000075152000-0x0000000075153000-memory.dmp
memory/1416-68-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-67-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-66-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-65-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-64-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-63-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-62-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-61-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-60-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-59-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-58-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-57-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-56-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-54-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-55-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-53-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-52-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-51-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-50-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-49-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-48-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-47-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-46-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-45-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-44-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-43-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-42-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-41-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-40-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-38-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-37-0x000000007FE90000-0x000000007FEA0000-memory.dmp
memory/1416-152-0x00000000271B0000-0x00000000271C0000-memory.dmp
memory/1416-153-0x0000000027200000-0x000000002729C000-memory.dmp
memory/1416-154-0x0000000075140000-0x00000000758FC000-memory.dmp
memory/1416-155-0x0000000075140000-0x00000000758FC000-memory.dmp
memory/1416-156-0x0000000075140000-0x00000000758FC000-memory.dmp
memory/1416-157-0x00000000272B0000-0x0000000027316000-memory.dmp
memory/1416-158-0x0000000075140000-0x00000000758FC000-memory.dmp
memory/1416-160-0x0000000075140000-0x00000000758FC000-memory.dmp