Overview

overview

10

Static

static

3

MrsMajor-m...ge.vbs

windows10-2004-x64

5

MrsMajor-m...ge.vbs

windows10-ltsc_2021-x64

5

MrsMajor-m...ge.vbs

windows11-ltsc_2024-x64

8

MrsMajor-m..._X.bat

windows10-2004-x64

3

MrsMajor-m..._X.bat

windows10-ltsc_2021-x64

3

MrsMajor-m..._X.bat

windows11-ltsc_2024-x64

8

MrsMajor-m...er.vbs

windows10-2004-x64

5

MrsMajor-m...er.vbs

windows10-ltsc_2021-x64

5

MrsMajor-m...er.vbs

windows11-ltsc_2024-x64

8

MrsMajor-m...ui.exe

windows10-2004-x64

3

MrsMajor-m...ui.exe

windows10-ltsc_2021-x64

3

MrsMajor-m...ui.exe

windows11-ltsc_2024-x64

8

MrsMajor-m...er.bat

windows10-2004-x64

3

MrsMajor-m...er.bat

windows10-ltsc_2021-x64

3

MrsMajor-m...er.bat

windows11-ltsc_2024-x64

3

MrsMajor-m...on.bat

windows10-2004-x64

5

MrsMajor-m...on.bat

windows10-ltsc_2021-x64

5

MrsMajor-m...on.bat

windows11-ltsc_2024-x64

5

MrsMajor-m...lt.vbs

windows10-2004-x64

5

MrsMajor-m...lt.vbs

windows10-ltsc_2021-x64

5

MrsMajor-m...lt.vbs

windows11-ltsc_2024-x64

8

MrsMajor-m...er.vbs

windows10-2004-x64

MrsMajor-m...er.vbs

windows10-ltsc_2021-x64

MrsMajor-m...er.vbs

windows11-ltsc_2024-x64

MrsMajor-m...rt.vbs

windows10-2004-x64

7

MrsMajor-m...rt.vbs

windows10-ltsc_2021-x64

7

MrsMajor-m...rt.vbs

windows11-ltsc_2024-x64

5

Analysis

  • geolocation tags

    nanew-jerseynorth-americaunited-statesususa
  • max time kernel
    899s
  • max time network
    553s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/07/2026, 02:03

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General

  • Target
    MrsMajor-main/Launcher.vbs
  • Size 590B
  • Sample260720-cgp1escs8m
  • SHA256 6f0bb8cc239af15c9215867d6225c8ff344052aaa0deeb3452dbf463b8c46529
  • MD5 SHA1 SHA512 TLSH
Score
8/10
adwareexecutionpersistenceransomwarespyware

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

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

    persistence
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
    execution
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 39 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 54 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 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.

    persistence
  • Uses Volume Shadow Copy WMI provider

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

    ransomware
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\MrsMajor-main\Launcher.vbs"
    1⤵
    • Executes a VBScript file via the Windows Script Host.
    • Modifies registry class
    PID:4220
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:2512
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3348
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:4652
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:680
    • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
      "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:3096
    • C:\Windows\System32\SecurityHealthHost.exe
      \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
      1⤵
        PID:1464

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            prep_Activatable Class_Hermes_perf.cache
            • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
            • Size 607B
            • SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            memory/3096-21-0x000001D103420000-0x000001D103520000-memory.dmp
            Download

            memory/3096-35-0x000001D1170C0000-0x000001D1171C0000-memory.dmp
            Download

            memory/3096-53-0x000001D107040000-0x000001D107060000-memory.dmp
            Download

            memory/3096-34-0x000001D105C50000-0x000001D105C70000-memory.dmp
            Download

            memory/3096-67-0x000001D117430000-0x000001D117450000-memory.dmp
            Download