Analysis

  • user interaction
    yes
  • max time kernel
    148s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 10:57

General

  • Target
    0543862271.js
  • Size 2.3MB
  • Sample261102-m2pkhag13x
  • SHA256 bf01e1afb1c74fa05ad9f0d62b5f331a6e82e344b2b7bbc1a6db1aaece7de7f0
  • MD5 SHA1 SHA512 SSDEEP TLSH

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.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\0543862271.js
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4980
    • 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
      PID:4520
    • C:\Users\Admin\Documents\UUZSSZFNUMCLKDBU.exe
      "C:\Users\Admin\Documents\UUZSSZFNUMCLKDBU.exe" C:\Users\Admin\Documents\UBDKLCMUNFZSSZUU
      2⤵
      • 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
      PID:940
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 940 -s 1716
        3⤵
        • Program crash
        PID:3524
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 940 -ip 940
    1⤵
      PID:1752

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          UBDKLCMUNFZSSZUU

          • Path C:\Users\Admin\Documents\UBDKLCMUNFZSSZUU
          • Size 289KB
          • SHA256 842468ebd34efd2370b6861b5084254671438d44baa7f65c8cfd317291606512
          • MD5 SHA1 SHA512 SSDEEP TLSH

          UUZSSZFNUMCLKDBU.exe

          • Path C:\Users\Admin\Documents\UUZSSZFNUMCLKDBU.exe
          • Size 499KB
          • SHA256 d447a06cba8d3dbe80e09d73dd64576836b258961ee0d3ba56cf26cea7962b49
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/940-10-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-11-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-12-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-13-0x0000000000C90000-0x0000000000C91000-memory.dmp

          memory/940-16-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-15-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-14-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-22-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-21-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-20-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-19-0x0000000000CB0000-0x0000000000CB1000-memory.dmp

          memory/940-18-0x0000000000CA0000-0x0000000000CA1000-memory.dmp

          memory/940-17-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-28-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-30-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-29-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-27-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-25-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-24-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-26-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-23-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-31-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-73-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-72-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-71-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-70-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-69-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-68-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-67-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-66-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-65-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-64-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-63-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-62-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-61-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-60-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-59-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-58-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-57-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-56-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-55-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-54-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-53-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-52-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-51-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-50-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-49-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-48-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-47-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-46-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-45-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-44-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-43-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-42-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-41-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-40-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-39-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-38-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-37-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-36-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-35-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-34-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-33-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-32-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/940-153-0x0000000074642000-0x0000000074643000-memory.dmp

          memory/940-154-0x0000000027320000-0x0000000027330000-memory.dmp

          memory/940-155-0x0000000029AB0000-0x0000000029B4C000-memory.dmp

          memory/940-156-0x0000000074630000-0x0000000074DEC000-memory.dmp

          memory/940-157-0x0000000074630000-0x0000000074DEC000-memory.dmp

          memory/940-158-0x0000000074630000-0x0000000074DEC000-memory.dmp

          memory/940-159-0x0000000029B60000-0x0000000029BC6000-memory.dmp

          memory/940-160-0x0000000074630000-0x0000000074DEC000-memory.dmp

          memory/940-162-0x0000000074630000-0x0000000074DEC000-memory.dmp