Overview

overview

8

Static

static

7

5f1b0542fd...84.dll

windows10-2004-x64

7

5f1b0542fd...84.dll

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    127s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/07/2026, 16:49

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General

  • Target
    5f1b0542fd436daad391a2e4218dbc2731dca07635d31c1cc31a59fd34773384.dll
  • Size 2.5MB
  • Sample260702-vbr7psfs6l
  • SHA256 5f1b0542fd436daad391a2e4218dbc2731dca07635d31c1cc31a59fd34773384
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarediscoverypersistenceransomwarespywareupx

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
  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 3 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • UPX packed file 8 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • 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 32 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 39 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

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\5f1b0542fd436daad391a2e4218dbc2731dca07635d31c1cc31a59fd34773384.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2956
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\5f1b0542fd436daad391a2e4218dbc2731dca07635d31c1cc31a59fd34773384.dll,#1
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:5376
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1544
    • 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:5964
  • 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:1724
  • 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:2860
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:4536

    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

          ecurl.dll
          • Path C:\Users\Admin\AppData\Local\Temp\ee\Plugins\ecurl.dll
          • Size 162KB
          • SHA256 a0679211a81bd6ccbe9fd8f6a7eb19bd5ea38cc7f3c8452448bc24daf226817d
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          hp_socket4c.dll
          • Path C:\Users\Admin\AppData\Local\Temp\ee\Plugins\hp_socket4c.dll
          • Size 792KB
          • SHA256 65e65ccfe5b7fc075e06a5cf58507253a92dd9b7ab7a1a2b9e6b31fe7810e6ac
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          rdjson.dll
          • Path C:\Users\Admin\AppData\Local\Temp\ee\Plugins\rdjson.dll
          • Size 192KB
          • SHA256 e345f88529b2337bb2719550985a049c61a6bca84c113c7b07f7ec5313446f7d
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/1724-52-0x00000257001E0000-0x00000257002E0000-memory.dmp
          Download

          memory/1724-50-0x00000257001E0000-0x00000257002E0000-memory.dmp
          Download

          memory/1724-64-0x0000025713EA0000-0x0000025713FA0000-memory.dmp
          Download

          memory/1724-96-0x0000025714240000-0x0000025714260000-memory.dmp
          Download

          memory/1724-63-0x0000025703A40000-0x0000025703A60000-memory.dmp
          Download

          memory/1724-51-0x00000257001E0000-0x00000257002E0000-memory.dmp
          Download

          memory/1724-77-0x0000025703E40000-0x0000025703E60000-memory.dmp
          Download

          memory/5376-29-0x00000000741C0000-0x0000000074216000-memory.dmp
          Download

          memory/5376-0-0x0000000010000000-0x000000001070C000-memory.dmp
          Download

          memory/5376-7-0x0000000074390000-0x00000000745C8000-memory.dmp
          Download

          memory/5376-27-0x0000000010000000-0x000000001070C000-memory.dmp
          Download

          memory/5376-28-0x0000000074390000-0x00000000745C8000-memory.dmp
          Download

          memory/5376-14-0x00000000741C0000-0x0000000074216000-memory.dmp
          Download

          memory/5376-19-0x000000001DA00000-0x000000001DA01000-memory.dmp
          Download

          memory/5376-8-0x000000001D990000-0x000000001D9B7000-memory.dmp
          Download