Analysis

  • user interaction
    yes
  • max time kernel
    148s
  • max time network
    125s
  • 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.rar
  • Size 848KB
  • Sample261102-m2pkhag13x
  • SHA256 d45ccb091b58fb91089dde84995180436fdff6ff50e77afa1705342fffaf2ebf
  • 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 4 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 8 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 4 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 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 10 IoCs
  • NTFS ADS 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Program Files\7-Zip\7zFM.exe
    "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\0543862271.rar"
    1⤵
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:5160
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\7zO824178DA\0543862271.JS"
      2⤵
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:5708
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c echo. > "C:\Users\Admin\AppData\Local\Temp\7zO824178DA\0543862271.JS:Zone.Identifier"
        3⤵
        • Executes a command shell one-liner
        • NTFS ADS
        PID:5208
      • C:\Users\Admin\Documents\UUZSSZFNUMCLKDBU.exe
        "C:\Users\Admin\Documents\UUZSSZFNUMCLKDBU.exe" C:\Users\Admin\Documents\UBDKLCMUNFZSSZUU
        3⤵
        • 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:1432
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 1620
          4⤵
          • Program crash
          PID:1964
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\7zO8249BEDA\0543862271.JS"
      2⤵
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3196
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c echo. > "C:\Users\Admin\AppData\Local\Temp\7zO8249BEDA\0543862271.JS:Zone.Identifier"
        3⤵
        • Executes a command shell one-liner
        • NTFS ADS
        PID:5808
      • C:\Users\Admin\Documents\UUZSSZFNUMCLKDBU.exe
        "C:\Users\Admin\Documents\UUZSSZFNUMCLKDBU.exe" C:\Users\Admin\Documents\UBDKLCMUNFZSSZUU
        3⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2696
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\7zO824595DA\0543862271.JS"
      2⤵
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2936
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c echo. > "C:\Users\Admin\AppData\Local\Temp\7zO824595DA\0543862271.JS:Zone.Identifier"
        3⤵
        • Executes a command shell one-liner
        • NTFS ADS
        PID:6012
      • C:\Users\Admin\Documents\UUZSSZFNUMCLKDBU.exe
        "C:\Users\Admin\Documents\UUZSSZFNUMCLKDBU.exe" C:\Users\Admin\Documents\UBDKLCMUNFZSSZUU
        3⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4848
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\7zO824DDACA\0543862271.JS"
      2⤵
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4468
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c echo. > "C:\Users\Admin\AppData\Local\Temp\7zO824DDACA\0543862271.JS:Zone.Identifier"
        3⤵
        • Executes a command shell one-liner
        • NTFS ADS
        PID:4324
      • C:\Users\Admin\Documents\UUZSSZFNUMCLKDBU.exe
        "C:\Users\Admin\Documents\UUZSSZFNUMCLKDBU.exe" C:\Users\Admin\Documents\UBDKLCMUNFZSSZUU
        3⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:5260
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1432 -ip 1432
    1⤵
      PID:4672

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          0543862271.JS

          • Path C:\Users\Admin\AppData\Local\Temp\7zO824178DA\0543862271.JS
          • Size 2.3MB
          • SHA256 bf01e1afb1c74fa05ad9f0d62b5f331a6e82e344b2b7bbc1a6db1aaece7de7f0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          0543862271.JS:Zone.Identifier

          • Path C:\Users\Admin\AppData\Local\Temp\7zO824DDACA\0543862271.JS:Zone.Identifier
          • Size 3B
          • SHA256 6bdf66b5bf2a44e658bea2ee86695ab150a06e600bf67cd5cce245ad54962c61
          • MD5 SHA1 SHA512

          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/1432-54-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/1432-318-0x0000000026F80000-0x0000000026F90000-memory.dmp

          memory/1432-355-0x0000000029820000-0x0000000029886000-memory.dmp

          memory/1432-319-0x0000000026FC0000-0x000000002705C000-memory.dmp

          memory/1432-42-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/1432-58-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/1432-55-0x0000000000870000-0x0000000000871000-memory.dmp

          memory/1432-56-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/1432-57-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/1432-72-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/1432-75-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/1432-76-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-84-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-67-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-100-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-99-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-98-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-97-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-96-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-95-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-94-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-93-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-92-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-91-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-90-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-89-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-88-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-87-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-86-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-85-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-102-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-83-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-81-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-82-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-80-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-79-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-78-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-77-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-71-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-101-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-49-0x0000000002650000-0x0000000002651000-memory.dmp

          memory/2696-70-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-66-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-64-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-62-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-61-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-60-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-59-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-43-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-44-0x0000000000C90000-0x0000000000C91000-memory.dmp

          memory/2696-45-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-103-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-68-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-69-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-65-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-63-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-46-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-47-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-53-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-52-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-51-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-50-0x0000000002660000-0x0000000002661000-memory.dmp

          memory/2696-48-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-40-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/2696-39-0x000000007FE90000-0x000000007FEA0000-memory.dmp

          memory/3196-36-0x0000016A75630000-0x0000016A75A4E000-memory.dmp

          memory/5708-37-0x000001BFD7B40000-0x000001BFD7F5E000-memory.dmp