Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/08/2026, 17:08

General

  • Target
    Fernissages219.ps1
  • Size 51KB
  • Sample260810-vnyv1steja
  • SHA256 9556cf0b7464c14ede8f9ae4b9d1a20030beefd244d31fc36412603c82fbe2bc
  • MD5 SHA1 SHA512 SSDEEP TLSH

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.

  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • 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
  • Modifies registry class 40 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 56 IoCs
  • Suspicious use of FindShellTrayWindow 52 IoCs
  • Suspicious use of SendNotifyMessage 39 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.

  • 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:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\Fernissages219.ps1
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:5668
  • C:\Windows\system32\userinit.exe
    C:\Windows\system32\userinit.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2348
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      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:4244
  • 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:5776
  • 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:4712

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        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 599B
        • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
        • MD5 SHA1 SHA512 TLSH

        memory/4712-225-0x000001BC58340000-0x000001BC589D1000-memory.dmp

        memory/5668-24-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-28-0x0000019666D20000-0x0000019666D2A000-memory.dmp

        memory/5668-6-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-7-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-8-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-11-0x0000019666890000-0x00000196668AE000-memory.dmp

        memory/5668-13-0x00000196668B0000-0x0000019666962000-memory.dmp

        memory/5668-12-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-14-0x0000019666880000-0x000001966688A000-memory.dmp

        memory/5668-15-0x0000019666990000-0x00000196669AE000-memory.dmp

        memory/5668-16-0x0000019666970000-0x000001966697A000-memory.dmp

        memory/5668-17-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-19-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-18-0x0000019666D40000-0x0000019666D5C000-memory.dmp

        memory/5668-20-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-21-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-22-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-23-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-0-0x00007FFB7385F000-0x00007FFB73860000-memory.dmp

        memory/5668-25-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-5-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-27-0x00000196669B0000-0x00000196669B6000-memory.dmp

        memory/5668-26-0x0000019666980000-0x0000019666988000-memory.dmp

        memory/5668-29-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-31-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-30-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-33-0x0000019666980000-0x00000196669A4000-memory.dmp

        memory/5668-32-0x0000019666980000-0x00000196669AA000-memory.dmp

        memory/5668-34-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-3-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-223-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-214-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-191-0x00007FFB736D0000-0x00007FFB74074000-memory.dmp

        memory/5668-4-0x0000019666840000-0x0000019666862000-memory.dmp

        memory/5776-39-0x0000020C801E0000-0x0000020C802E0000-memory.dmp

        memory/5776-42-0x0000020C82930000-0x0000020C82950000-memory.dmp

        memory/5776-44-0x0000020C82D50000-0x0000020C82E50000-memory.dmp

        memory/5776-37-0x0000020C801E0000-0x0000020C802E0000-memory.dmp

        memory/5776-58-0x0000020C82B90000-0x0000020C82BB0000-memory.dmp

        memory/5776-83-0x0000020C945A0000-0x0000020C945C0000-memory.dmp

        memory/5776-38-0x0000020C801E0000-0x0000020C802E0000-memory.dmp