Overview

overview

8

Static

static

3

AuditEvent...st.dll

windows10-2004-x64

1

AuditEvent...st.dll

windows11-ltsc_2024-x64

1

DdlTransac...or.dll

windows10-2004-x64

1

DdlTransac...or.dll

windows11-ltsc_2024-x64

1

Hardcodet....pf.dll

windows10-2004-x64

1

Hardcodet....pf.dll

windows11-ltsc_2024-x64

1

HidSharp.dll

windows10-2004-x64

1

HidSharp.dll

windows11-ltsc_2024-x64

1

Microsoft....es.dll

windows10-2004-x64

1

Microsoft....es.dll

windows11-ltsc_2024-x64

1

Microsoft....de.dll

windows10-2004-x64

1

Microsoft....de.dll

windows11-ltsc_2024-x64

6

Microsoft....ns.dll

windows10-2004-x64

1

Microsoft....ns.dll

windows11-ltsc_2024-x64

6

Microsoft....ns.dll

windows10-2004-x64

1

Microsoft....ns.dll

windows11-ltsc_2024-x64

1

MigraDoc.D...el.dll

windows10-2004-x64

1

MigraDoc.D...el.dll

windows11-ltsc_2024-x64

1

MigraDoc.R...pf.dll

windows10-2004-x64

1

MigraDoc.R...pf.dll

windows11-ltsc_2024-x64

1

MigraDoc.R...pf.dll

windows10-2004-x64

1

MigraDoc.R...pf.dll

windows11-ltsc_2024-x64

1

PdfSharp-wpf.dll

windows10-2004-x64

1

PdfSharp-wpf.dll

windows11-ltsc_2024-x64

1

PdfSharp.B...pf.dll

windows10-2004-x64

1

PdfSharp.B...pf.dll

windows11-ltsc_2024-x64

8

PdfSharp.C...pf.dll

windows10-2004-x64

1

PdfSharp.C...pf.dll

windows11-ltsc_2024-x64

1

PdfSharp.C...hy.dll

windows10-2004-x64

1

PdfSharp.C...hy.dll

windows11-ltsc_2024-x64

1

PdfSharp.Q...pf.dll

windows10-2004-x64

1

PdfSharp.Q...pf.dll

windows11-ltsc_2024-x64

1

Analysis

  • max time kernel
    128s
  • max time network
    154s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/06/2026, 12:17

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General

  • Target
    PdfSharp.BarCodes-wpf.dll
  • Size 31KB
  • Sample260625-pgcfjsbx7q
  • SHA256 acdb2fd79fe4f0f0fc5c826a05659dea6835fbceada2ed3739891e8827c8d07e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
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 40 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 41 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\PdfSharp.BarCodes-wpf.dll,#1
    1⤵
      PID:1500
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3616
      • 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:4972
    • 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:2304
    • 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:3480
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:4628

      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/2304-20-0x000001F7001E0000-0x000001F7002E0000-memory.dmp
            Download

            memory/2304-30-0x000001F703E10000-0x000001F703E30000-memory.dmp
            Download

            memory/2304-27-0x000001F703A30000-0x000001F703A50000-memory.dmp
            Download

            memory/2304-43-0x000001F714280000-0x000001F7142A0000-memory.dmp
            Download

            memory/2304-28-0x000001F703E50000-0x000001F703F50000-memory.dmp
            Download

            memory/4972-159-0x000000000D850000-0x000000000E0CB000-memory.dmp
            Download