Overview

overview

6

Static

static

3

rapid/Micr...es.dll

windows10-2004-x64

4

rapid/Micr...es.dll

windows11-ltsc_2024-x64

6

rapid/Syst...ic.dll

windows10-2004-x64

1

rapid/Syst...ic.dll

windows11-ltsc_2024-x64

1

rapid/Syst...ns.dll

windows10-2004-x64

1

rapid/Syst...ns.dll

windows11-ltsc_2024-x64

rapid/Syst...es.dll

windows10-2004-x64

1

rapid/Syst...es.dll

windows11-ltsc_2024-x64

rapid/Syst...le.dll

windows10-2004-x64

1

rapid/Syst...le.dll

windows11-ltsc_2024-x64

1

rapid/Syst...ss.dll

windows10-2004-x64

1

rapid/Syst...ss.dll

windows11-ltsc_2024-x64

1

rapid/System.Linq.dll

windows10-2004-x64

1

rapid/System.Linq.dll

windows11-ltsc_2024-x64

6

rapid/Syst...ry.dll

windows10-2004-x64

1

rapid/Syst...ry.dll

windows11-ltsc_2024-x64

1

rapid/Syst...ib.dll

windows10-2004-x64

1

rapid/Syst...ib.dll

windows11-ltsc_2024-x64

1

rapid/Syst...es.dll

windows10-2004-x64

1

rapid/Syst...es.dll

windows11-ltsc_2024-x64

1

rapid/Syst...me.dll

windows10-2004-x64

1

rapid/Syst...me.dll

windows11-ltsc_2024-x64

1

rapid/Syst...ns.dll

windows10-2004-x64

1

rapid/Syst...ns.dll

windows11-ltsc_2024-x64

1

rapid/Syst...ad.dll

windows10-2004-x64

1

rapid/Syst...ad.dll

windows11-ltsc_2024-x64

rapid/Syst...ng.dll

windows10-2004-x64

1

rapid/Syst...ng.dll

windows11-ltsc_2024-x64

rapid/WinU...er.exe

windows10-2004-x64

1

rapid/WinU...er.exe

windows11-ltsc_2024-x64

1

rapid/clrjit.dll

windows10-2004-x64

1

rapid/clrjit.dll

windows11-ltsc_2024-x64

6

Analysis

  • max time kernel
    33s
  • max time network
    111s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/06/2026, 12:12

Sharing

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Report Analysis Logs

Errors

Reason
Task went missing from backend

General

  • Target
    rapid/System.Collections.dll
  • Size 258KB
  • Sample260629-pc8cesew3k
  • SHA256 05b1364b1f6e37f089e46db060e0708a5d2cbd6da2d795cf69956b84fad1097c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
adwarepersistencespyware

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 16 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 28 IoCs
  • Suspicious use of FindShellTrayWindow 39 IoCs
  • Suspicious use of SendNotifyMessage 27 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\rapid\System.Collections.dll,#1
    1⤵
      PID:2072
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1992
      • 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:3568
    • 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:2784
    • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
      "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
      1⤵
      • Suspicious use of SetWindowsHookEx
      PID:1528

    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

          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 591B
          • SHA256 dc216c11d6381abdcb6a4b927fd9ea68d336ff63c88639e4a242acf037f90c68
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          memory/1528-23-0x000002CE001F0000-0x000002CE002F0000-memory.dmp
          Download

          memory/1528-24-0x000002CE001F0000-0x000002CE002F0000-memory.dmp
          Download

          memory/1528-41-0x000002CE03DB0000-0x000002CE03DD0000-memory.dmp
          Download

          memory/1528-37-0x000002CE03ED0000-0x000002CE03FD0000-memory.dmp
          Download

          memory/1528-69-0x000002CE156C0000-0x000002CE156E0000-memory.dmp
          Download

          memory/1528-36-0x000002CE03CB0000-0x000002CE03CD0000-memory.dmp
          Download

          memory/1528-183-0x000002CE17B20000-0x000002CE17DBE000-memory.dmp
          Download

          memory/2784-182-0x000001CC76000000-0x000001CC7629E000-memory.dmp
          Download