Overview

overview

10

Static

static

7

VideoSdk.dll

windows10-2004-x64

10

VideoSdk.dll

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    143s
  • 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, 04:45

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General

  • Target
    VideoSdk.dll
  • Size 7.4MB
  • Sample260702-fdvchsas6j
  • SHA256 0aa66c62d8af0501b615368e37bb09f3e1a7804a5a14e6c5e08379b52beec618
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwaredefense_evasiondiscoverypersistenceransomwarespywaretrojanvmprotect

Malware Config

Signatures

  • UAC bypass 3 TTPs 3 IoCs
    defense_evasiontrojan
  • 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
  • Executes dropped EXE 10 IoCs
  • VMProtect packed file 3 IoCs

    Detects executables packed with VMProtect commercial packer.

    vmprotect
  • Adds Run key to start application 2 TTPs 26 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    defense_evasiontrojan
  • 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 11 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 1 IoCs
    adwarespyware
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 32 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 15 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • System policy modification 1 TTPs 4 IoCs
    defense_evasion
  • 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\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\VideoSdk.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1180
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\VideoSdk.dll,#1
      2⤵
      • UAC bypass
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • System policy modification
      PID:3360
  • C:\ProgramData\KJQD\aappej\aappej.exe
    "C:\ProgramData\KJQD\aappej\aappej.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:6036
  • C:\ProgramData\KJQD\aappeg\aappeg.exe
    "C:\ProgramData\KJQD\aappeg\aappeg.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1348
  • C:\ProgramData\KJQD\aappem\aappem.exe
    "C:\ProgramData\KJQD\aappem\aappem.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4052
  • C:\ProgramData\KJQD\aappew\aappew.exe
    "C:\ProgramData\KJQD\aappew\aappew.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1752
  • C:\ProgramData\KJQD\aappei\aappei.exe
    "C:\ProgramData\KJQD\aappei\aappei.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4480
  • C:\ProgramData\KJQD\aapper\aapper.exe
    "C:\ProgramData\KJQD\aapper\aapper.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3340
  • C:\ProgramData\KJQD\aappek\aappek.exe
    "C:\ProgramData\KJQD\aappek\aappek.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1208
  • C:\ProgramData\KJQD\aappel\aappel.exe
    "C:\ProgramData\KJQD\aappel\aappel.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3048
  • C:\ProgramData\KJQD\aappez\aappez.exe
    "C:\ProgramData\KJQD\aappez\aappez.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3676
  • C:\ProgramData\KJQD\aapped\aapped.exe
    "C:\ProgramData\KJQD\aapped\aapped.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:6052
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2816
    • 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 AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:1632
  • 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:4436
  • 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:3520

Network

        MITRE ATT&CK Enterprise v16

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        Persistence

        Boot or Logon Autostart Execution

        2
        T1547

        Active Setup

        1
        T1547.014

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Privilege Escalation

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Boot or Logon Autostart Execution

        2
        T1547

        Active Setup

        1
        T1547.014

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Defense Evasion

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Impair Defenses

        1
        T1562

        Disable or Modify Tools

        1
        T1562.001

        Modify Registry

        5
        T1112

        Credential Access

        Discovery

        Peripheral Device Discovery

        2
        T1120

        Query Registry

        3
        T1012

        System Information Discovery

        3
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Lateral Movement

        Collection

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

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        Downloads

        aappej.exe
        • Path C:\ProgramData\KJQD\aappej\aappej.exe
        • Size 193KB
        • SHA256 d23373a73e086f2575cd5f994dc37d9af39757b48ea04d34b9ffe0b0b8dd4d5a
        • 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 595B
        • SHA256 d4e60617c2afab8263febabe7f14f18595715078d71307a8cefe0707dae76dee
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memory/3360-0-0x0000000010000000-0x0000000010F55000-memory.dmp
        Download

        memory/3360-1-0x0000000010000000-0x0000000010F55000-memory.dmp
        Download

        memory/3360-17-0x0000000010000000-0x0000000010F55000-memory.dmp
        Download

        memory/4436-72-0x0000021D801E0000-0x0000021D802E0000-memory.dmp
        Download

        memory/4436-82-0x0000021D83A30000-0x0000021D83A50000-memory.dmp
        Download

        memory/4436-116-0x0000021D94710000-0x0000021D94730000-memory.dmp
        Download

        memory/4436-84-0x0000021D93E70000-0x0000021D93F70000-memory.dmp
        Download

        memory/4436-96-0x0000021D83C90000-0x0000021D83CB0000-memory.dmp
        Download

        memory/4436-71-0x0000021D801E0000-0x0000021D802E0000-memory.dmp
        Download

        memory/4436-70-0x0000021D801E0000-0x0000021D802E0000-memory.dmp
        Download