Analysis

  • max time kernel
    116s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/06/2026, 04:24

General

  • Target
    sO7owIyUKFh5z.exe
  • Size 1.5MB
  • Sample260625-e1h3bsht9q
  • SHA256 554498d567510eb22da861a223f8a38edfe7891d0ea4f0ccc8f89a0a0aeea194
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 1 IoCs
  • Modifies Windows Defender notification settings 3 TTPs 3 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • 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.

  • Executes dropped EXE 2 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Drops file in Program Files directory 12 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

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

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

  • 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 39 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 6 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\sO7owIyUKFh5z.exe
    "C:\Users\Admin\AppData\Local\Temp\sO7owIyUKFh5z.exe"
    1⤵
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:5076
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Program Files\WindowsOptions\install.vbs"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:6096
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -File "run.ps1"
        3⤵
        • Modifies Windows Defender DisableAntiSpyware settings
        • Modifies Windows Defender notification settings
        • UAC bypass
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2672
        • C:\Windows\system32\CiTool.exe
          "C:\Windows\system32\CiTool.exe" -r
          4⤵
            PID:4424
          • C:\Program Files\WindowsOptions\UnRAR.exe
            "C:\Program Files\WindowsOptions\UnRAR.exe" x -y -pByeFriend! "C:\Program Files\WindowsOptions\sfx.rar" "C:\Program Files\WindowsOptions\"
            4⤵
            • Executes dropped EXE
            • Drops file in Program Files directory
            PID:2840
          • C:\Program Files\WindowsOptions\Yjzlxkdoi.exe
            "C:\Program Files\WindowsOptions\Yjzlxkdoi.exe"
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:3224
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5132
      • 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 use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:5652
    • 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:5492
    • 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:1936

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          UnRAR.exe

          • Path C:\Program Files\WindowsOptions\UnRAR.exe
          • Size 547KB
          • SHA256 e785a0c0dcf79385f0483c1eb2242e3937d0447f6b21dd158906e92757b46542
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Yjzlxkdoi.exe

          • Path C:\Program Files\WindowsOptions\Yjzlxkdoi.exe
          • Size 378KB
          • SHA256 20aa1bd00565f5063b89abf9e3f1919600304be4d43ccacaed7019081164db43
          • MD5 SHA1 SHA512 SSDEEP TLSH

          install.vbs

          • Path C:\Program Files\WindowsOptions\install.vbs
          • Size 98B
          • SHA256 a0110f07fe8d70b8c7f8d6d973f54a2cae6c8fbf09e7ae6b780f5598af903474
          • MD5 SHA1 SHA512 TLSH

          run.ps1

          • Path C:\Program Files\WindowsOptions\run.ps1
          • Size 23KB
          • SHA256 4220408adec9f0ff9dd034efa7e71ffd0d6cdf229a147981de240d90f65bdf87
          • MD5 SHA1 SHA512 SSDEEP TLSH

          sfx.rar

          • Path C:\Program Files\WindowsOptions\sfx.rar
          • Size 198KB
          • SHA256 58ec26a3496b3f463ecc470c607f46e0a9a3f21cda6cd1ade59d38bb656ab9ea
          • MD5 SHA1 SHA512 SSDEEP 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 595B
          • SHA256 d4e60617c2afab8263febabe7f14f18595715078d71307a8cefe0707dae76dee
          • MD5 SHA1 SHA512 TLSH

          __PSScriptPolicyTest_kkhdyiz2.u0e.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kkhdyiz2.u0e.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          memory/2672-16-0x000002644F720000-0x000002644F742000-memory.dmp

          memory/2672-27-0x0000026467C40000-0x0000026467C5E000-memory.dmp

          memory/2672-28-0x0000026467E10000-0x0000026467EC2000-memory.dmp

          memory/2672-29-0x0000026467C60000-0x0000026467C6A000-memory.dmp

          memory/2672-49-0x0000026467CD0000-0x0000026467CEE000-memory.dmp

          memory/3224-130-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-120-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-59-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-184-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-183-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-180-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-178-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-176-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-174-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-172-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-170-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-168-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-166-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-164-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-162-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-160-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-158-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-154-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-152-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-150-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-148-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-146-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-144-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-140-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-138-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-136-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-135-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-132-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-57-0x0000000005860000-0x000000000587A000-memory.dmp

          memory/3224-128-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-126-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-124-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-122-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-58-0x0000000005890000-0x00000000058BC000-memory.dmp

          memory/3224-118-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-116-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-112-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-110-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-108-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-106-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-102-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-100-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-98-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-96-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-94-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-93-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-90-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-88-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-86-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-82-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-80-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-78-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-76-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-74-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-72-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-70-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-68-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-64-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-62-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-60-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-156-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-142-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-114-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-104-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-84-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-66-0x0000000005890000-0x00000000058B6000-memory.dmp

          memory/3224-685-0x0000000005E90000-0x0000000005EF6000-memory.dmp

          memory/3224-56-0x0000000000D20000-0x0000000000D84000-memory.dmp