Overview

overview

6

Static

static

3

DLLs/_asyncio.dll

windows10-2004-x64

1

DLLs/_asyncio.dll

windows11-ltsc_2024-x64

1

DLLs/_bz2.dll

windows10-2004-x64

1

DLLs/_bz2.dll

windows11-ltsc_2024-x64

6

DLLs/_ctypes.dll

windows10-2004-x64

1

DLLs/_ctypes.dll

windows11-ltsc_2024-x64

1

DLLs/_ctypes_test.dll

windows10-2004-x64

1

DLLs/_ctypes_test.dll

windows11-ltsc_2024-x64

6

DLLs/_hashlib.dll

windows10-2004-x64

1

DLLs/_hashlib.dll

windows11-ltsc_2024-x64

1

DLLs/_msi.dll

windows10-2004-x64

1

DLLs/_msi.dll

windows11-ltsc_2024-x64

1

DLLs/_mult...ng.dll

windows10-2004-x64

1

DLLs/_mult...ng.dll

windows11-ltsc_2024-x64

1

DLLs/_overlapped.dll

windows10-2004-x64

1

DLLs/_overlapped.dll

windows11-ltsc_2024-x64

6

DLLs/_queue.dll

windows10-2004-x64

1

DLLs/_queue.dll

windows11-ltsc_2024-x64

1

DLLs/_sqlite3.dll

windows10-2004-x64

1

DLLs/_sqlite3.dll

windows11-ltsc_2024-x64

1

DLLs/_ssl.dll

windows10-2004-x64

1

DLLs/_ssl.dll

windows11-ltsc_2024-x64

1

DLLs/_tkinter.dll

windows10-2004-x64

1

DLLs/_tkinter.dll

windows11-ltsc_2024-x64

1

DLLs/_uuid.dll

windows10-2004-x64

1

DLLs/_uuid.dll

windows11-ltsc_2024-x64

6

DLLs/_wmi.dll

windows10-2004-x64

1

DLLs/_wmi.dll

windows11-ltsc_2024-x64

1

DLLs/_zoneinfo.dll

windows10-2004-x64

1

DLLs/_zoneinfo.dll

windows11-ltsc_2024-x64

6

DLLs/libcrypto-3.dll

windows10-2004-x64

1

DLLs/libcrypto-3.dll

windows11-ltsc_2024-x64

1

Analysis

  • max time kernel
    148s
  • max time network
    119s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    06/07/2026, 00:17

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General

  • Target
    DLLs/_bz2.dll
  • Size 83KB
  • Sample260706-alfw7sgx21
  • SHA256 cb15d6cc7268d3a0bd17d9d9cec330a7c1768b1c911553045c73bc6920de987f
  • 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 40 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 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\DLLs\_bz2.dll,#1
    1⤵
      PID:4832
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5332
      • 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:3400
    • 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:5392
    • 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:2064
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:4892

      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/2064-197-0x000002633BAD0000-0x000002633BD8C000-memory.dmp
            Download

            memory/2064-215-0x000002633BAD0000-0x000002633BD8C000-memory.dmp
            Download

            memory/3400-196-0x000000000E920000-0x000000000F19B000-memory.dmp
            Download

            memory/5392-20-0x000002BF801E0000-0x000002BF802E0000-memory.dmp
            Download

            memory/5392-45-0x000002BF83C10000-0x000002BF83C30000-memory.dmp
            Download

            memory/5392-33-0x000002BF93D70000-0x000002BF93E70000-memory.dmp
            Download

            memory/5392-32-0x000002BF83A50000-0x000002BF83A70000-memory.dmp
            Download

            memory/5392-66-0x000002BF94170000-0x000002BF94190000-memory.dmp
            Download