Overview

overview

10

Static

static

1

_cf926c3d4...a24.js

windows10-2004-x64

10

_cf926c3d4...a24.js

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    97s
  • max time network
    122s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/07/2026, 08:36

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General

  • Target
    _cf926c3d41987ba54e55aabe23b3f991eb8413aef8412a537f9903cfd38faa24.js
  • Size 45KB
  • Sample260709-khqmcaft2q
  • SHA256 cf926c3d41987ba54e55aabe23b3f991eb8413aef8412a537f9903cfd38faa24
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwareexecutionpersistenceransomwarespyware

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Badlisted process makes network request 2 IoCs

    Network request originating from process or tool commonly abused by malware.

  • 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.

  • Command and Scripting Interpreter: JavaScript 1 TTPs
    execution
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

    execution
  • 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 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of FindShellTrayWindow 54 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
    wscript.exe C:\Users\Admin\AppData\Local\Temp\_cf926c3d41987ba54e55aabe23b3f991eb8413aef8412a537f9903cfd38faa24.js
    1⤵
      PID:1836
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -NoProfile -Command "Invoke-Expression $env:cystoblast"
      1⤵
      • Process spawned unexpected child process
      • Badlisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3180
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:600
      • 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:268
    • 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:3752
    • 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:2132

    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/268-205-0x000000000A4F0000-0x000000000A6BA000-memory.dmp
          Download

          memory/2132-44-0x000001F501CF0000-0x000001F501D10000-memory.dmp
          Download

          memory/2132-45-0x000001F501ED0000-0x000001F501FD0000-memory.dmp
          Download

          memory/2132-60-0x000001F514350000-0x000001F514370000-memory.dmp
          Download

          memory/2132-85-0x000001F5142F0000-0x000001F514310000-memory.dmp
          Download

          memory/2132-39-0x000001F5001E0000-0x000001F5002E0000-memory.dmp
          Download

          memory/3180-8-0x00007FFCD0960000-0x00007FFCD1304000-memory.dmp
          Download

          memory/3180-9-0x00007FFCD0960000-0x00007FFCD1304000-memory.dmp
          Download

          memory/3180-11-0x00007FFCD0960000-0x00007FFCD1304000-memory.dmp
          Download

          memory/3180-12-0x00007FFCD0960000-0x00007FFCD1304000-memory.dmp
          Download

          memory/3180-13-0x00007FFCD0960000-0x00007FFCD1304000-memory.dmp
          Download

          memory/3180-14-0x00007FFCD0960000-0x00007FFCD1304000-memory.dmp
          Download

          memory/3180-15-0x00007FFCD0960000-0x00007FFCD1304000-memory.dmp
          Download

          memory/3180-17-0x00007FFCD0960000-0x00007FFCD1304000-memory.dmp
          Download

          memory/3180-18-0x00007FFCD0960000-0x00007FFCD1304000-memory.dmp
          Download

          memory/3180-10-0x00007FFCD0960000-0x00007FFCD1304000-memory.dmp
          Download

          memory/3180-0-0x00007FFCD0AEF000-0x00007FFCD0AF0000-memory.dmp
          Download

          memory/3180-7-0x00007FFCD0960000-0x00007FFCD1304000-memory.dmp
          Download

          memory/3180-6-0x000001F41C7B0000-0x000001F41C7D2000-memory.dmp
          Download

          memory/3180-3-0x00007FFCD0960000-0x00007FFCD1304000-memory.dmp
          Download

          memory/3180-2-0x00007FFCD0960000-0x00007FFCD1304000-memory.dmp
          Download

          memory/3180-1-0x00007FFCD0960000-0x00007FFCD1304000-memory.dmp
          Download

          memory/3180-207-0x00007FFCD0960000-0x00007FFCD1304000-memory.dmp
          Download