Overview

overview

8

Static

static

3

NetOptimizer.exe

windows10-2004-x64

7

NetOptimizer.exe

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    120s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/07/2026, 21:31

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General

  • Target
    NetOptimizer.exe
  • Size 7.8MB
  • Sample260708-1dackaht7l
  • SHA256 606324273e0e31a5cf4157426f03167ccafdb0874d6f871cd8145357cddca4e9
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarediscoveryexecutionpersistenceransomwarespyware

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
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Using powershell.exe command.

    execution
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • 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 3 IoCs
    adwarespyware
  • Modifies registry class 40 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 43 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 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:\Users\Admin\AppData\Local\Temp\NetOptimizer.exe
    "C:\Users\Admin\AppData\Local\Temp\NetOptimizer.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Suspicious use of WriteProcessMemory
    PID:468
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Get-NetOffloadGlobalSetting > "C:\Users\Admin\AppData\Roaming\NetOptimizer\NetOffloadGlobalSetting.out"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3524
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Get-NetOffloadGlobalSetting > "C:\Users\Admin\AppData\Roaming\NetOptimizer\NetOffloadGlobalSetting.out"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1400
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Get-NetOffloadGlobalSetting > "C:\Users\Admin\AppData\Roaming\NetOptimizer\NetOffloadGlobalSetting.out"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5876
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1500
    • 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:1544
  • 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:2800
  • 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:5356

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        StartupProfileData-NonInteractive
        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 21KB
        • SHA256 3e60fc2c7c056d2c954cdbec92fdbf743166231493d91b03e5540fde12dde8b9
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        StartupProfileData-NonInteractive
        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 20KB
        • SHA256 23a0dda78480f255057cd9ce523cda1139056a3c94c618f58cc2d9ae4f39a5db
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        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

        de.lng
        • Path C:\Users\Admin\AppData\Local\Temp\NetOptimizer\Languages\de.lng
        • Size 59KB
        • SHA256 b1c58df65cf67ba542b17a441bea7bcad472b3d67d93a5b1ba0c440ce35bf085
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        es.lng
        • Path C:\Users\Admin\AppData\Local\Temp\NetOptimizer\Languages\es.lng
        • Size 59KB
        • SHA256 999dbb84584fb52e39d8cc7d30976cea32c3783cf9c8eabc3c12cb0c6bd5f0f9
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        fr.lng
        • Path C:\Users\Admin\AppData\Local\Temp\NetOptimizer\Languages\fr.lng
        • Size 60KB
        • SHA256 ae4788f2551fea6f2265b75d344820abdab82d0b816dc00411b0fb1a8f71bd62
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        pl.lng
        • Path C:\Users\Admin\AppData\Local\Temp\NetOptimizer\Languages\pl.lng
        • Size 56KB
        • SHA256 3ac3928243a301bb526a78d5151375ac2ffc0aa87c452c6994146e7a862a8ab4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        sl.lng
        • Path C:\Users\Admin\AppData\Local\Temp\NetOptimizer\Languages\sl.lng
        • Size 56KB
        • SHA256 fd89b219fb23e0ba114a6c7d29a3b6028d35cc0136e5cfb89e78e58047c5b57b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ua.lng
        • Path C:\Users\Admin\AppData\Local\Temp\NetOptimizer\Languages\ua.lng
        • Size 56KB
        • SHA256 f29d9de153ca03db08c5c096c59b86474b2ac51adbfb01b309804038e76ff08c
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        __PSScriptPolicyTest_35o5i1jy.1ej.ps1
        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_35o5i1jy.1ej.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memory/468-59-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-75-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-1-0x0000000002A30000-0x0000000002A31000-memory.dmp
        Download

        memory/468-3-0x0000000002A30000-0x0000000002A31000-memory.dmp
        Download

        memory/468-57-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-58-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-0-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-323-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-321-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-319-0x0000000000A90000-0x0000000001EF7000-memory.dmp
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        memory/468-316-0x0000000000A90000-0x0000000001EF7000-memory.dmp
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        memory/468-314-0x0000000000A90000-0x0000000001EF7000-memory.dmp
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        memory/468-312-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-310-0x0000000000A90000-0x0000000001EF7000-memory.dmp
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        memory/468-308-0x0000000000A90000-0x0000000001EF7000-memory.dmp
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        memory/468-14-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-104-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-240-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-74-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-5-0x0000000002A30000-0x0000000002A31000-memory.dmp
        Download

        memory/468-10-0x0000000002A50000-0x0000000002A51000-memory.dmp
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        memory/468-13-0x0000000000B2A000-0x0000000000B2B000-memory.dmp
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        memory/468-4-0x0000000002A30000-0x0000000002A31000-memory.dmp
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        memory/468-99-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-98-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-86-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-111-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-11-0x0000000002A50000-0x0000000002A51000-memory.dmp
        Download

        memory/468-113-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-90-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/468-112-0x0000000000A90000-0x0000000001EF7000-memory.dmp
        Download

        memory/1400-95-0x000000006DA50000-0x000000006DA9C000-memory.dmp
        Download

        memory/1544-307-0x000000000A780000-0x000000000A9DF000-memory.dmp
        Download

        memory/2800-134-0x0000025080090000-0x0000025080190000-memory.dmp
        Download

        memory/2800-180-0x00000250840C0000-0x00000250840E0000-memory.dmp
        Download

        memory/2800-145-0x00000250837E0000-0x0000025083800000-memory.dmp
        Download

        memory/2800-156-0x0000025083CC0000-0x0000025083CE0000-memory.dmp
        Download

        memory/2800-146-0x0000025083DB0000-0x0000025083EB0000-memory.dmp
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        memory/3524-70-0x0000000005DE0000-0x000000000613B000-memory.dmp
        Download

        memory/3524-76-0x0000000007050000-0x0000000007086000-memory.dmp
        Download

        memory/3524-100-0x0000000007670000-0x0000000007681000-memory.dmp
        Download

        memory/3524-94-0x00000000076B0000-0x0000000007746000-memory.dmp
        Download

        memory/3524-60-0x0000000071022000-0x0000000071023000-memory.dmp
        Download

        memory/3524-89-0x00000000074B0000-0x00000000074BA000-memory.dmp
        Download

        memory/3524-88-0x0000000007440000-0x000000000745A000-memory.dmp
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        memory/3524-87-0x0000000007A80000-0x00000000080FC000-memory.dmp
        Download

        memory/3524-83-0x0000000007290000-0x0000000007333000-memory.dmp
        Download

        memory/3524-82-0x00000000065C0000-0x00000000065E0000-memory.dmp
        Download

        memory/3524-79-0x000000006DA50000-0x000000006DA9C000-memory.dmp
        Download

        memory/3524-103-0x0000000071010000-0x00000000717CC000-memory.dmp
        Download

        memory/3524-72-0x0000000006190000-0x00000000061DC000-memory.dmp
        Download

        memory/3524-71-0x0000000005D70000-0x0000000005D8E000-memory.dmp
        Download

        memory/3524-69-0x0000000071010000-0x00000000717CC000-memory.dmp
        Download

        memory/3524-65-0x0000000005B10000-0x0000000005B76000-memory.dmp
        Download

        memory/3524-66-0x0000000005B80000-0x0000000005BE6000-memory.dmp
        Download

        memory/3524-64-0x0000000005410000-0x0000000005432000-memory.dmp
        Download

        memory/3524-62-0x0000000071010000-0x00000000717CC000-memory.dmp
        Download

        memory/3524-63-0x0000000005450000-0x0000000005A9A000-memory.dmp
        Download

        memory/3524-61-0x00000000028D0000-0x0000000002906000-memory.dmp
        Download

        memory/5876-91-0x000000006DA50000-0x000000006DA9C000-memory.dmp
        Download