Analysis

  • user interaction
    yes
  • max time kernel
    124s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/07/2026, 16:15

General

  • Target
    Topaz Video 1.4.1.exe
  • Size 198.3MB
  • Sample260702-tqa2asew2k
  • SHA256 2e64cd510d4fc91add46b40bdbc2916a5e7ca640b2a93329bc64e98c5da88277
  • 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.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Inno Setup is an open-source installation builder for Windows applications. 2 IoCs

    Inno Setup installer

  • 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 30 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 43 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 2 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\Topaz Video 1.4.1.exe
    "C:\Users\Admin\AppData\Local\Temp\Topaz Video 1.4.1.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5528
    • C:\Users\Admin\AppData\Local\Temp\is-Q5D9B.tmp\Topaz Video 1.4.1.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-Q5D9B.tmp\Topaz Video 1.4.1.tmp" /SL5="$301F6,207529790,64512,C:\Users\Admin\AppData\Local\Temp\Topaz Video 1.4.1.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1484
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:5836
    • 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 behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:5768
  • 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:3268
  • 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:916

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 607B
        • SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
        • MD5 SHA1 SHA512 TLSH

        Topaz Video 1.4.1.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-Q5D9B.tmp\Topaz Video 1.4.1.tmp
        • Size 911KB
        • SHA256 a5e4a29e45ae865c37e5e90d0ca893db815b9495f6703aa1921b9d95274d4e00
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ISTask.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-UT5AJ.tmp\ISTask.dll
        • Size 66KB
        • SHA256 e916bdf232744e00cbd8d608168a019c9f41a68a7e8390aa48cfb525276c483d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        VclStylesInno.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-UT5AJ.tmp\VclStylesInno.dll
        • Size 3.0MB
        • SHA256 0e93313f42084d804b9ac4be53d844e549cfcaf19e6f276a3b0f82f01b9b2246
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1484-64-0x0000000008430000-0x0000000008431000-memory.dmp

        memory/1484-38-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-28-0x0000000008370000-0x0000000008371000-memory.dmp

        memory/1484-42-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-45-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-82-0x0000000008490000-0x0000000008491000-memory.dmp

        memory/1484-84-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-83-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-81-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-80-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-58-0x0000000008410000-0x0000000008411000-memory.dmp

        memory/1484-77-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-87-0x000000000808E000-0x000000000808F000-memory.dmp

        memory/1484-75-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-74-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-72-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-71-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-69-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-68-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-66-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-65-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-63-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-62-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-60-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-59-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-57-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-56-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-54-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-53-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-51-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-50-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-79-0x0000000008480000-0x0000000008481000-memory.dmp

        memory/1484-73-0x0000000008460000-0x0000000008461000-memory.dmp

        memory/1484-70-0x0000000008450000-0x0000000008451000-memory.dmp

        memory/1484-52-0x00000000083F0000-0x00000000083F1000-memory.dmp

        memory/1484-61-0x0000000008420000-0x0000000008421000-memory.dmp

        memory/1484-78-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-23-0x0000000007EF0000-0x000000000820A000-memory.dmp

        memory/1484-17-0x0000000002520000-0x0000000002536000-memory.dmp

        memory/1484-48-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-47-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-49-0x00000000083E0000-0x00000000083E1000-memory.dmp

        memory/1484-44-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-76-0x0000000008470000-0x0000000008471000-memory.dmp

        memory/1484-67-0x0000000008440000-0x0000000008441000-memory.dmp

        memory/1484-46-0x00000000083D0000-0x00000000083D1000-memory.dmp

        memory/1484-55-0x0000000008400000-0x0000000008401000-memory.dmp

        memory/1484-36-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-35-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-33-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-32-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-43-0x00000000083C0000-0x00000000083C1000-memory.dmp

        memory/1484-41-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-40-0x00000000083B0000-0x00000000083B1000-memory.dmp

        memory/1484-39-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-37-0x00000000083A0000-0x00000000083A1000-memory.dmp

        memory/1484-34-0x0000000008390000-0x0000000008391000-memory.dmp

        memory/1484-31-0x0000000008380000-0x0000000008381000-memory.dmp

        memory/1484-30-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-29-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-27-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-26-0x0000000008210000-0x0000000008350000-memory.dmp

        memory/1484-25-0x0000000008360000-0x0000000008361000-memory.dmp

        memory/1484-88-0x0000000007EF0000-0x000000000820A000-memory.dmp

        memory/1484-89-0x0000000007EF0000-0x000000000820A000-memory.dmp

        memory/1484-90-0x0000000007EF0000-0x000000000820A000-memory.dmp

        memory/1484-91-0x0000000007EF0000-0x000000000820A000-memory.dmp

        memory/1484-93-0x0000000007EF0000-0x000000000820A000-memory.dmp

        memory/1484-92-0x0000000007EF0000-0x000000000820A000-memory.dmp

        memory/1484-100-0x00000000022B0000-0x00000000022B1000-memory.dmp

        memory/1484-101-0x0000000007EF0000-0x000000000820A000-memory.dmp

        memory/1484-6-0x00000000022B0000-0x00000000022B1000-memory.dmp

        memory/5528-0-0x0000000000400000-0x0000000000417000-memory.dmp

        memory/5528-96-0x0000000000400000-0x0000000000417000-memory.dmp