Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    16/10/2026, 18:30

General

  • Target
    SECURE BYTE GUI.exe
  • Size 9.7MB
  • Sample261016-w5flfaba67
  • SHA256 90c2655130733bc1680627754c107c9d8cfd033df0ff40613868e027125b2981
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • m7mnga-38338.portmap.host:38338

Mutex
  • JigXrL7925vRQAGo

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Family: Xworm

    Xworm is a remote access trojan written in C#.

  • Detect Xworm Payload 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes a file named after a Windows system binary 1 TTPs 2 IoCs

    The file runs from a user directory while carrying the name of an executable that normally only exists in System32.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 2 IoCs
  • Packer/crypter tool: SecureByte 2 IoCs

    SecureByte: an open-source packer/crypter that encrypts payloads and produces obfuscated executables.

  • ConfuserEx .NET packer 1 IoCs

    Detects ConfuserEx .NET packer.

  • Enumerates video capture drivers 2 TTPs 1 IoCs

    Queries the legacy Video for Windows capture drivers. This is commonly abused by RATs to check for available webcams on the system before reporting to their C2.

  • 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.

  • 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.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies registry class 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 6 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\SECURE BYTE GUI.exe
    "C:\Users\Admin\AppData\Local\Temp\SECURE BYTE GUI.exe"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2856
    • C:\ProgramData\SECURE BYTE GUI.exe
      "C:\ProgramData\SECURE BYTE GUI.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2052
    • C:\ProgramData\window.exe
      "C:\ProgramData\window.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3468
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\winlogon.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3236
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'winlogon.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2392
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA090.tmp.bat""
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:4208
        • C:\Windows\system32\timeout.exe
          timeout 3
          4⤵
          • Delays execution with timeout.exe
          PID:2820
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:1488
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:1912
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3892
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3452
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4192
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:1892
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:1668
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:1404
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3028
  • C:\Users\Admin\AppData\Roaming\winlogon.exe
    C:\Users\Admin\AppData\Roaming\winlogon.exe
    1⤵
    • Executes a file named after a Windows system binary
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3336
  • C:\Users\Admin\AppData\Roaming\winlogon.exe
    C:\Users\Admin\AppData\Roaming\winlogon.exe
    1⤵
    • Executes a file named after a Windows system binary
    • Executes dropped EXE
    • Enumerates video capture drivers
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious use of AdjustPrivilegeToken
    PID:4924

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        Guna.UI2.dll

        • Path C:\ProgramData\Guna.UI2.dll
        • Size 3.8MB
        • SHA256 040b166676f61ceca68a3282b2dc77de9b90b5351e77808fd52b03f9870586fc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SECURE BYTE GUI.exe

        • Path C:\ProgramData\SECURE BYTE GUI.exe
        • Size 2.3MB
        • SHA256 68ddb91f213689bf335a3f7140ac8d3992c6cb1b9e6821bfa9a251a365c32468
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SECURE BYTE GUI.exe.config

        • Path C:\ProgramData\SECURE BYTE GUI.exe.config
        • Size 532B
        • SHA256 9c57e0aa56a2e086a674c39080765b349c7ffbccd8ec77c4e30c8cc8e3588260
        • MD5 SHA1 SHA512 TLSH

        window.exe

        • Path C:\ProgramData\window.exe
        • Size 223KB
        • SHA256 feb1ca4bc92051b3b536fc0d3821db56874d73658d01e552212ce1e3ae5a6e4b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
        • MD5 SHA1 SHA512 TLSH

        winlogon.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\winlogon.exe.log
        • Size 1KB
        • SHA256 471356f5b299eaaaf1856e0f3d93a94c68321a326f5210a952e93ddb3848647c
        • MD5 SHA1 SHA512 TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 944B
        • SHA256 2ae6e3f473d1bb5d3fb350e7f4361420068d8fc4ca9bb770d8d97c946217e553
        • MD5 SHA1 SHA512 TLSH

        __PSScriptPolicyTest_zy0qq2bf.4xp.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zy0qq2bf.4xp.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        tmpA090.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpA090.tmp.bat
        • Size 139B
        • SHA256 961b7a2920c8df8bb4deb7a1b599a0f2ee198ee25faf2c3d582adea18294265c
        • MD5 SHA1 SHA512 TLSH

        memory/2052-37-0x0000000005450000-0x000000000545A000-memory.dmp

        memory/2052-41-0x0000000006230000-0x0000000006606000-memory.dmp

        memory/2052-33-0x00000000058A0000-0x0000000005E44000-memory.dmp

        memory/2052-34-0x0000000005390000-0x0000000005422000-memory.dmp

        memory/2052-32-0x0000000005280000-0x0000000005292000-memory.dmp

        memory/2052-31-0x0000000000770000-0x00000000009C2000-memory.dmp

        memory/2856-0-0x0000000000810000-0x00000000011BE000-memory.dmp

        memory/3236-59-0x000001E0E6250000-0x000001E0E6272000-memory.dmp

        memory/3468-58-0x0000000000C60000-0x0000000000C9E000-memory.dmp

        memory/4924-90-0x0000000001660000-0x000000000166E000-memory.dmp