Overview

overview

10

Static

static

10

XWormClient.exe

windows10-ltsc_2021-x64

XWormClient.exe

windows10-2004-x64

XWormClient.exe

windows11-21h2-x64

XWormClient.exe

windows11-ltsc_2024-x64

XWormClient.exe

android-10-x64

XWormClient.exe

android-11-x64

XWormClient.exe

android-13-x64

XWormClient.exe

android-14-x64

XWormClient.exe

android-15-x64

XWormClient.exe

android-9-x86

XWormClient.exe

macos-10.15-amd64

1

XWormClient.exe

debian-12-armhf

XWormClient.exe

debian-12-mipsel

XWormClient.exe

debian-9-armhf

XWormClient.exe

debian-9-mips

XWormClient.exe

debian-9-mipsel

XWormClient.exe

ubuntu-18.04-amd64

XWormClient.exe

ubuntu-20.04-amd64

XWormClient.exe

ubuntu-22.04-amd64

XWormClient.exe

ubuntu-24.04-amd64

Analysis

  • user interaction
    yes
  • max time kernel
    94s
  • max time network
    133s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    05/09/2026, 19:34

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Report Analysis Logs

Errors

Reason
Machine shutdown

General

  • Target
    XWormClient.exe
  • Size 32KB
  • Sample260905-yacbmsff49
  • SHA256 cf14244fb788ca119fbc290c434897e7e928cd8b7bec19e501b92f8cabde38ae
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarebootkitcollectionexecutionxwormpersistenceprivilege_escalationratspywaretrojan

Malware Config

Extracted

Family

  • xworm

Version

  • 5.0

C2

  • 89.190.158.167:911

Mutex

  • x90mfbG7q12JM7dT

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Family: Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Detect Xworm Payload 1 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 8 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Manipulates Digital Signatures 1 TTPs 60 IoCs

    Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to make their binary seem validly signed.

  • 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.

    persistenceprivilege_escalation
  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 3 IoCs
    persistence
  • Accesses Microsoft Outlook profiles 1 TTPs 4 IoCs
    collection
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Drops file in System32 directory 18 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 5 IoCs

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

    execution
  • Checks processor information in registry 2 TTPs 28 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 64 IoCs
  • Modifies Internet Explorer settings 1 TTPs 64 IoCs
    adwarespyware
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 64 IoCs
  • Modifies registry key 1 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XWormClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XWormClient.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1592
    • C:\Users\Admin\AppData\Local\Temp\wmbfao.exe
      "C:\Users\Admin\AppData\Local\Temp\wmbfao.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Writes to the Master Boot Record (MBR)
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5144
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c reg delete HKCR /f
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:4624
        • C:\Windows\system32\reg.exe
          reg delete HKCR /f
          4⤵
          • Modifies registry class
          PID:4084
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c reg delete HKCU /f
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:4340
        • C:\Windows\system32\reg.exe
          reg delete HKCU /f
          4⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Manipulates Digital Signatures
          • Accesses Microsoft Outlook profiles
          • Adds Run key to start application
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Modifies registry key
          • outlook_office_path
          PID:5268
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c reg delete HKLM /f
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:5084
        • C:\Windows\system32\reg.exe
          reg delete HKLM /f
          4⤵
          • Checks processor information in registry
          • Enumerates system info in registry
          • Modifies registry class
          • Modifies registry key
          PID:2272
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c reg delete HKU /f
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:3544
        • C:\Windows\system32\reg.exe
          reg delete HKU /f
          4⤵
          • Manipulates Digital Signatures
          • Modifies system executable filetype association
          • Adds Run key to start application
          • Modifies data under HKEY_USERS
          • Modifies registry class
          PID:4280
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c reg delete HKCC /f
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:1484
        • C:\Windows\system32\reg.exe
          reg delete HKCC /f
          4⤵
            PID:212
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x460 0x2ec
      1⤵
        PID:5400

      Network

            MITRE ATT&CK Enterprise v16

            Reconnaissance

            Resource Development

            Initial Access

            Execution

            Command and Scripting Interpreter

            1
            T1059

            Windows Command Shell

            1
            T1059.003

            Persistence

            Boot or Logon Autostart Execution

            2
            T1547

            Active Setup

            1
            T1547.014

            Registry Run Keys / Startup Folder

            1
            T1547.001

            Event Triggered Execution

            2
            T1546

            Change Default File Association

            1
            T1546.001

            Component Object Model Hijacking

            1
            T1546.015

            Pre-OS Boot

            1
            T1542

            Bootkit

            1
            T1542.003

            Privilege Escalation

            Boot or Logon Autostart Execution

            2
            T1547

            Active Setup

            1
            T1547.014

            Registry Run Keys / Startup Folder

            1
            T1547.001

            Event Triggered Execution

            2
            T1546

            Change Default File Association

            1
            T1546.001

            Component Object Model Hijacking

            1
            T1546.015

            Defense Evasion

            Modify Registry

            5
            T1112

            Pre-OS Boot

            1
            T1542

            Bootkit

            1
            T1542.003

            Subvert Trust Controls

            1
            T1553

            SIP and Trust Provider Hijacking

            1
            T1553.003

            Credential Access

            Discovery

            Query Registry

            3
            T1012

            System Information Discovery

            4
            T1082

            Lateral Movement

            Collection

            Email Collection

            1
            T1114

            Command and Control

            Exfiltration

            Impact

            Replay Monitor

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            Downloads

            wmbfao.exe
            • Path C:\Users\Admin\AppData\Local\Temp\wmbfao.exe
            • Size 11KB
            • SHA256 1a7610cd29d915c7f4ad68d5238e4dd3cfc973de57ad81a177ba8ae5cb9a86c5
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            memory/1592-0-0x0000000000080000-0x000000000008E000-memory.dmp
            Download

            memory/1592-1-0x000000001AD50000-0x000000001AD60000-memory.dmp
            Download

            memory/1592-2-0x000000001AD50000-0x000000001AD60000-memory.dmp
            Download

            memory/1592-3-0x000000001CC10000-0x000000001CDA6000-memory.dmp
            Download

            memory/5144-18-0x0000000000640000-0x000000000064A000-memory.dmp
            Download

            memory/5144-19-0x000000001B140000-0x000000001B150000-memory.dmp
            Download

            memory/5144-23-0x000000001B140000-0x000000001B150000-memory.dmp
            Download