Overview

overview

8

Static

static

3

EzExtractSetup.exe

windows10-2004-x64

4

EzExtractSetup.exe

windows11-ltsc_2024-x64

5

$PLUGINSDIR/INetC.dll

windows10-2004-x64

3

$PLUGINSDIR/INetC.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...in.dll

windows10-2004-x64

3

$PLUGINSDI...in.dll

windows11-ltsc_2024-x64

6

$PLUGINSDI...em.dll

windows10-2004-x64

3

$PLUGINSDI...em.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...on.ico

windows10-2004-x64

3

$PLUGINSDI...on.ico

windows11-ltsc_2024-x64

8

$PLUGINSDI...ge.ico

windows10-2004-x64

3

$PLUGINSDI...ge.ico

windows11-ltsc_2024-x64

3

$PLUGINSDI...st.exe

windows10-2004-x64

4

$PLUGINSDI...st.exe

windows11-ltsc_2024-x64

4

$PLUGINSDI...em.dll

windows10-2004-x64

3

$PLUGINSDI...em.dll

windows11-ltsc_2024-x64

8

GoogleUpdateSetup.exe

windows10-2004-x64

4

GoogleUpdateSetup.exe

windows11-ltsc_2024-x64

4

$PLUGINSDI...rd.bmp

windows10-2004-x64

1

$PLUGINSDI...rd.bmp

windows11-ltsc_2024-x64

1

$PLUGINSDI...gs.dll

windows10-2004-x64

3

$PLUGINSDI...gs.dll

windows11-ltsc_2024-x64

3

EzExtractP...ll.dll

windows10-2004-x64

1

EzExtractP...ll.dll

windows11-ltsc_2024-x64

6

EzExtractProShell.dll

windows10-2004-x64

5

EzExtractProShell.dll

windows11-ltsc_2024-x64

5

EzExtractP...32.dll

windows10-2004-x64

3

EzExtractP...32.dll

windows11-ltsc_2024-x64

3

Analysis

  • max time kernel
    69s
  • max time network
    90s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/07/2026, 22:09

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General

  • Target
    $PLUGINSDIR/System.dll
  • Size 11KB
  • Sample260705-121vesf12v
  • SHA256 a1390a78533c47e55cc364e97af431117126d04a7faed49390210ea3e89dd0e1
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarediscoverypersistencespyware

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
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Program crash 1 IoCs
  • 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.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 42 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 16 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5080
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4160
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4160 -s 520
        3⤵
        • Program crash
        PID:3864
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4160 -ip 4160
    1⤵
      PID:5804
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5100
      • 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
        PID:1404
    • 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:5884
    • 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:2920

    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 599B
          • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          memory/1404-179-0x000000000AB60000-0x000000000ADBF000-memory.dmp
          Download

          memory/5884-66-0x0000013102E50000-0x0000013102E70000-memory.dmp
          Download

          memory/5884-47-0x00000131029D0000-0x00000131029F0000-memory.dmp
          Download

          memory/5884-20-0x0000013144EC0000-0x0000013144FC0000-memory.dmp
          Download

          memory/5884-34-0x0000013102A50000-0x0000013102B50000-memory.dmp
          Download

          memory/5884-22-0x0000013144EC0000-0x0000013144FC0000-memory.dmp
          Download

          memory/5884-33-0x0000013102600000-0x0000013102620000-memory.dmp
          Download

          memory/5884-21-0x0000013144EC0000-0x0000013144FC0000-memory.dmp
          Download