Overview

overview

8

Static

static

3

DECODER.Setup.exe

windows10-2004-x64

7

DECODER.Setup.exe

windows11-ltsc_2024-x64

8

$PLUGINSDI...er.dll

windows10-2004-x64

3

$PLUGINSDI...er.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...ls.dll

windows10-2004-x64

3

$PLUGINSDI...ls.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

$PLUGINSDI...em.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...ll.dll

windows10-2004-x64

3

$PLUGINSDI...ll.dll

windows11-ltsc_2024-x64

3

DECODER.exe

windows10-2004-x64

7

resources/...dex.js

windows10-2004-x64

3

resources/...dex.js

windows11-ltsc_2024-x64

8

resources/...za.exe

windows10-2004-x64

resources/...za.exe

windows11-ltsc_2024-x64

resources/...za.exe

windows10-2004-x64

3

resources/...za.exe

windows11-ltsc_2024-x64

3

resources/...za.exe

windows10-2004-x64

1

resources/...za.exe

windows11-ltsc_2024-x64

8

resources/elevate.exe

windows10-2004-x64

3

resources/elevate.exe

windows11-ltsc_2024-x64

8

vk_swiftshader.dll

windows10-2004-x64

1

vulkan-1.dll

windows10-2004-x64

1

$PLUGINSDI...ec.dll

windows10-2004-x64

3

$PLUGINSDI...ec.dll

windows11-ltsc_2024-x64

8

$PLUGINSDI...ss.dll

windows10-2004-x64

3

$PLUGINSDI...ss.dll

windows11-ltsc_2024-x64

8

$PLUGINSDI...7z.dll

windows10-2004-x64

3

$PLUGINSDI...7z.dll

windows11-ltsc_2024-x64

8

$R0/Uninst...ER.exe

windows10-2004-x64

7

$R0/Uninst...ER.exe

windows11-ltsc_2024-x64

7

$PLUGINSDI...ls.dll

windows10-2004-x64

3

Analysis

  • max time kernel
    899s
  • max time network
    553s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/08/2026, 18:33

Sharing

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Report Analysis Logs

General

  • Target
    $PLUGINSDIR/nsExec.dll
  • Size 6KB
  • Sample260803-w697fahn6y
  • SHA256 5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarediscoverypersistenceransomwarespyware

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 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 41 IoCs
  • Suspicious use of SetWindowsHookEx 3 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.

    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\$PLUGINSDIR\nsExec.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4472
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5108
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5108 -s 524
        3⤵
        • Program crash
        PID:3488
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 5108 -ip 5108
    1⤵
      PID:5124
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:5624
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:1656
        • 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:1072
      • 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:3464
      • 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:4972
      • C:\Windows\System32\SecurityHealthHost.exe
        \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
        1⤵
          PID:6036

        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/3464-5-0x00000247801E0000-0x00000247802E0000-memory.dmp
              Download

              memory/3464-14-0x0000024782940000-0x0000024782960000-memory.dmp
              Download

              memory/3464-3-0x00000247801E0000-0x00000247802E0000-memory.dmp
              Download

              memory/3464-4-0x00000247801E0000-0x00000247802E0000-memory.dmp
              Download

              memory/3464-35-0x0000024782B80000-0x0000024782BA0000-memory.dmp
              Download

              memory/3464-49-0x00000247941A0000-0x00000247941C0000-memory.dmp
              Download

              memory/3464-15-0x0000024782D60000-0x0000024782E60000-memory.dmp
              Download