Analysis

  • max time kernel
    600s
  • max time network
    550s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/10/2026, 15:27

General

  • Target
    Intelligent standby list cleaner ISLC.exe
  • Size 1.1MB
  • Sample261014-svsapsgg52
  • SHA256 11e4ed0b322adced3214c5a73ca1e807140341be6327b2a47a4c52434e73322f
  • 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.

  • 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.

  • 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 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of FindShellTrayWindow 56 IoCs
  • Suspicious use of SendNotifyMessage 45 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:\Users\Admin\AppData\Local\Temp\Intelligent standby list cleaner ISLC.exe
    "C:\Users\Admin\AppData\Local\Temp\Intelligent standby list cleaner ISLC.exe"
    1⤵
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:4108
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1748
    • 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:2296
  • 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:4036
  • 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:4004

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 b1f5ddf24eb5347ed1088b92a5a5126de014b4f3cda205f8612b62bb195390aa
        • MD5 SHA1 SHA512 TLSH

        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/4036-77-0x0000025681C40000-0x0000025681C60000-memory.dmp

        memory/4036-66-0x0000025681A00000-0x0000025681A20000-memory.dmp

        memory/4036-67-0x0000025681E60000-0x0000025681F60000-memory.dmp

        memory/4036-100-0x0000025694670000-0x0000025694690000-memory.dmp

        memory/4036-55-0x00000256801E0000-0x00000256802E0000-memory.dmp

        memory/4108-25-0x000001BE6A380000-0x000001BE6A38E000-memory.dmp

        memory/4108-32-0x00007FFFFF640000-0x00007FFFFFFE4000-memory.dmp

        memory/4108-20-0x00007FFFFF640000-0x00007FFFFFFE4000-memory.dmp

        memory/4108-21-0x000001BE69E60000-0x000001BE69E82000-memory.dmp

        memory/4108-22-0x00007FFFFF640000-0x00007FFFFFFE4000-memory.dmp

        memory/4108-23-0x00007FFFFF640000-0x00007FFFFFFE4000-memory.dmp

        memory/4108-24-0x000001BE6A3C0000-0x000001BE6A3FE000-memory.dmp

        memory/4108-1-0x000001BE4BEE0000-0x000001BE4C004000-memory.dmp

        memory/4108-29-0x00007FFFFF640000-0x00007FFFFFFE4000-memory.dmp

        memory/4108-30-0x00007FFFFF640000-0x00007FFFFFFE4000-memory.dmp

        memory/4108-31-0x00007FFFFF640000-0x00007FFFFFFE4000-memory.dmp

        memory/4108-19-0x000001BE66660000-0x000001BE66668000-memory.dmp

        memory/4108-33-0x00007FFFFF640000-0x00007FFFFFFE4000-memory.dmp

        memory/4108-34-0x00007FFFFF640000-0x00007FFFFFFE4000-memory.dmp

        memory/4108-35-0x00007FFFFF640000-0x00007FFFFFFE4000-memory.dmp

        memory/4108-7-0x00007FFFFF640000-0x00007FFFFFFE4000-memory.dmp

        memory/4108-6-0x00007FFFFF640000-0x00007FFFFFFE4000-memory.dmp

        memory/4108-5-0x000001BE4DE20000-0x000001BE4DED2000-memory.dmp

        memory/4108-4-0x000001BE4C470000-0x000001BE4C480000-memory.dmp

        memory/4108-3-0x00007FFFFF640000-0x00007FFFFFFE4000-memory.dmp

        memory/4108-2-0x00007FFFFF640000-0x00007FFFFFFE4000-memory.dmp

        memory/4108-0-0x00007FFFFF7CF000-0x00007FFFFF7D0000-memory.dmp