Analysis

  • user interaction
    yes
  • max time kernel
    746s
  • max time network
    690s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    25/09/2026, 21:09

General

  • Target
    zzzz.exe
  • Size 32KB
  • Sample260925-zzrnashf63
  • SHA256 ab3ee33342d9f4d35d69af94a9759f2031ba04aef4bea4a40ce5172f32d9fc81
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 36.tcp.cpolar.top:14300

Mutex
  • xsZvBoWPFk9OfUqg

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Family: Xworm

    Xworm is a remote access trojan written in C#.

  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Detect Xworm Payload 1 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • Disables Task Manager via registry modification
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 47 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • 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.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • System policy modification 1 TTPs 2 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\zzzz.exe
    "C:\Users\Admin\AppData\Local\Temp\zzzz.exe"
    1⤵
    • UAC bypass
    • Checks computer location settings
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:5104
    • C:\Users\Admin\AppData\Local\Temp\xavzft.exe
      "C:\Users\Admin\AppData\Local\Temp\xavzft.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2132
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /k reg delete HKCR /f
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:860
        • C:\Windows\system32\reg.exe
          reg delete HKCR /f
          4⤵
          • Modifies system executable filetype association
          • Modifies registry class
          PID:3988
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpFA58.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:2692
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4432
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x40c 0x220
    1⤵
      PID:3640

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          tmpFA58.tmp.bat

          • Path C:\Users\Admin\AppData\Local\Temp\tmpFA58.tmp.bat
          • Size 156B
          • SHA256 c80fb78d87b83df99401fc7717d1399cae7a1fef7d95670628a6a719b803a867
          • MD5 SHA1 SHA512 TLSH

          xavzft.exe

          • Path C:\Users\Admin\AppData\Local\Temp\xavzft.exe
          • Size 11KB
          • SHA256 f5d89dba8a1e11ee3de0e08a460b11a251034b80791dab22e2e2c46274944ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2132-82-0x000000001B470000-0x000000001B619000-memory.dmp

          memory/2132-88-0x000000001B470000-0x000000001B619000-memory.dmp

          memory/2132-86-0x000000001B470000-0x000000001B619000-memory.dmp

          memory/2132-84-0x000000001B470000-0x000000001B619000-memory.dmp

          memory/2132-90-0x000000001B470000-0x000000001B619000-memory.dmp

          memory/2132-80-0x000000001B470000-0x000000001B619000-memory.dmp

          memory/2132-78-0x000000001B470000-0x000000001B619000-memory.dmp

          memory/2132-76-0x000000001B470000-0x000000001B619000-memory.dmp

          memory/2132-74-0x000000001B470000-0x000000001B619000-memory.dmp

          memory/2132-72-0x000000001ADB0000-0x000000001ADC0000-memory.dmp

          memory/2132-71-0x000000001B470000-0x000000001B619000-memory.dmp

          memory/2132-66-0x000000001ADB0000-0x000000001ADC0000-memory.dmp

          memory/2132-65-0x00000000000B0000-0x00000000000BA000-memory.dmp

          memory/5104-18-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-44-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-17-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-0-0x0000000000B40000-0x0000000000B4E000-memory.dmp

          memory/5104-19-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-20-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-21-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-22-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-23-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-24-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-25-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-26-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-27-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-28-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-29-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-30-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-31-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-32-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-33-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-34-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-35-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-36-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-37-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-38-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-39-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-40-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-41-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-42-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-43-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-16-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-45-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-46-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-47-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-48-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-49-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-50-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-51-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-52-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-53-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-15-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-14-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-13-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-70-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-12-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-11-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-73-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-10-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-75-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-9-0x000000001C300000-0x000000001C30E000-memory.dmp

          memory/5104-77-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-8-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-79-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-7-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-6-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-5-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-4-0x000000001C700000-0x000000001C8A9000-memory.dmp

          memory/5104-3-0x0000000002CD0000-0x0000000002CDC000-memory.dmp

          memory/5104-2-0x000000001B750000-0x000000001B760000-memory.dmp

          memory/5104-1-0x000000001B750000-0x000000001B760000-memory.dmp