Overview

overview

6

Static

static

3

dnSpy-net-win64.zip

windows10-2004-x64

1

dnSpy-net-win64.zip

windows11-ltsc_2024-x64

1

bin/System...ts.dll

windows10-2004-x64

1

bin/System...ts.dll

windows11-ltsc_2024-x64

1

bin/System...er.dll

windows10-2004-x64

1

bin/System...er.dll

windows11-ltsc_2024-x64

1

bin/System...on.dll

windows10-2004-x64

1

bin/System...on.dll

windows11-ltsc_2024-x64

1

bin/System...le.dll

windows10-2004-x64

1

bin/System...le.dll

windows11-ltsc_2024-x64

6

bin/System.Core.dll

windows10-2004-x64

1

bin/System.Core.dll

windows11-ltsc_2024-x64

6

bin/System...on.dll

windows10-2004-x64

1

bin/System...on.dll

windows11-ltsc_2024-x64

1

bin/System...ns.dll

windows10-2004-x64

1

bin/System...ns.dll

windows11-ltsc_2024-x64

1

bin/System.Data.dll

windows10-2004-x64

1

bin/System.Data.dll

windows11-ltsc_2024-x64

6

bin/System.Design.dll

windows10-2004-x64

1

bin/System.Design.dll

windows11-ltsc_2024-x64

6

bin/System...ts.dll

windows10-2004-x64

1

bin/System...ts.dll

windows11-ltsc_2024-x64

1

bin/System...ug.dll

windows10-2004-x64

1

bin/System...ug.dll

windows11-ltsc_2024-x64

1

bin/System...ce.dll

windows10-2004-x64

1

bin/System...ce.dll

windows11-ltsc_2024-x64

1

bin/System...es.dll

windows10-2004-x64

1

bin/System...es.dll

windows11-ltsc_2024-x64

1

bin/System...og.dll

windows10-2004-x64

1

bin/System...og.dll

windows11-ltsc_2024-x64

1

bin/System...fo.dll

windows10-2004-x64

1

bin/System...fo.dll

windows11-ltsc_2024-x64

1

Analysis

  • max time kernel
    116s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    21/06/2026, 17:12

Sharing

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General

  • Target
    bin/System.Core.dll
  • Size 22KB
  • Sample260621-vrcryset2p
  • SHA256 0028df97a8bc980612c9307e955bbb484d8b896942ccf11f3fb83be8f095ecd0
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
adwarepersistenceransomwarespyware

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.

  • 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 28 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 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\bin\System.Core.dll,#1
    1⤵
      PID:5436
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5676
      • 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:1572
    • 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:2328
    • 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:4408

    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 595B
          • SHA256 d4e60617c2afab8263febabe7f14f18595715078d71307a8cefe0707dae76dee
          • MD5 SHA1 SHA512 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 603B
          • SHA256 b346273b0f3e13afaa9f07d97248343c45a667a5e097d1198a449a4de187aebb
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          memory/1572-175-0x000000000EE90000-0x000000000F70B000-memory.dmp
          Download

          memory/2328-28-0x0000023982A30000-0x0000023982A50000-memory.dmp
          Download

          memory/2328-66-0x0000023994250000-0x0000023994270000-memory.dmp
          Download

          memory/2328-43-0x0000023982E10000-0x0000023982E30000-memory.dmp
          Download

          memory/2328-29-0x0000023982E50000-0x0000023982F50000-memory.dmp
          Download

          memory/2328-18-0x00000239801E0000-0x00000239802E0000-memory.dmp
          Download