Overview

overview

8

Static

static

1

5769be09-a...e8.eml

windows10-2004-x64

1

5769be09-a...e8.eml

windows11-ltsc_2024-x64

8

email-plain-1.txt

windows10-2004-x64

1

email-plain-1.txt

windows11-ltsc_2024-x64

1

oneoffice....xml.gz

windows10-2004-x64

1

oneoffice....xml.gz

windows11-ltsc_2024-x64

4

oneoffice....03.xml

windows10-2004-x64

3

oneoffice....03.xml

windows11-ltsc_2024-x64

8

Analysis

  • user interaction
    yes
  • max time kernel
    599s
  • max time network
    568s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/08/2026, 14:29

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General

  • Target
    oneoffice.jp!adventus.com!1785855603!1785942003.xml
  • Size 1KB
  • Sample260808-rtpyhsyclc
  • SHA256 f1e5efdd360c02654d03f91e251504ebb63d3d03e6d3ff2d40fa915f9c4660fc
  • MD5 SHA1 SHA512 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 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:\Program Files\Microsoft Office\Root\VFS\ProgramFilesCommonX64\Microsoft Shared\Office16\MSOXMLED.EXE
    "C:\Program Files\Microsoft Office\Root\VFS\ProgramFilesCommonX64\Microsoft Shared\Office16\MSOXMLED.EXE" /verb open "C:\Users\Admin\AppData\Local\Temp\oneoffice.jp!adventus.com!1785855603!1785942003.xml"
    1⤵
      PID:2252
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:3104
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:108
        • 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:4316
      • 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:4800
      • 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:4052

      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/2252-7-0x00007FF908F00000-0x00007FF909163000-memory.dmp
            Download

            memory/2252-18-0x00007FF8C9040000-0x00007FF8C9050000-memory.dmp
            Download

            memory/2252-4-0x00007FF8C9040000-0x00007FF8C9050000-memory.dmp
            Download

            memory/2252-0-0x00007FF8C9040000-0x00007FF8C9050000-memory.dmp
            Download

            memory/2252-13-0x00007FF908F00000-0x00007FF909163000-memory.dmp
            Download

            memory/2252-6-0x00007FF908F00000-0x00007FF909163000-memory.dmp
            Download

            memory/2252-1-0x00007FF8C9040000-0x00007FF8C9050000-memory.dmp
            Download

            memory/2252-8-0x00007FF908F00000-0x00007FF909163000-memory.dmp
            Download

            memory/2252-9-0x00007FF908F00000-0x00007FF909163000-memory.dmp
            Download

            memory/2252-10-0x00007FF908F00000-0x00007FF909163000-memory.dmp
            Download

            memory/2252-12-0x00007FF908F00000-0x00007FF909163000-memory.dmp
            Download

            memory/2252-11-0x00007FF908F00000-0x00007FF909163000-memory.dmp
            Download

            memory/2252-2-0x00007FF8C9040000-0x00007FF8C9050000-memory.dmp
            Download

            memory/2252-15-0x00007FF908F00000-0x00007FF909163000-memory.dmp
            Download

            memory/2252-5-0x00007FF8C9040000-0x00007FF8C9050000-memory.dmp
            Download

            memory/2252-17-0x00007FF8C9040000-0x00007FF8C9050000-memory.dmp
            Download

            memory/2252-16-0x00007FF8C9040000-0x00007FF8C9050000-memory.dmp
            Download

            memory/2252-19-0x00007FF8C9040000-0x00007FF8C9050000-memory.dmp
            Download

            memory/2252-20-0x00007FF908F00000-0x00007FF909163000-memory.dmp
            Download

            memory/2252-14-0x00007FF908F00000-0x00007FF909163000-memory.dmp
            Download

            memory/2252-3-0x00007FF90905F000-0x00007FF909060000-memory.dmp
            Download

            memory/4052-72-0x00000191942C0000-0x00000191942E0000-memory.dmp
            Download

            memory/4052-41-0x00000191801E0000-0x00000191802E0000-memory.dmp
            Download

            memory/4052-49-0x0000019182EE0000-0x0000019182FE0000-memory.dmp
            Download

            memory/4052-55-0x0000019182E80000-0x0000019182EA0000-memory.dmp
            Download

            memory/4052-48-0x0000019182A60000-0x0000019182A80000-memory.dmp
            Download

            memory/4052-195-0x0000019197B80000-0x0000019197E1E000-memory.dmp
            Download

            memory/4800-194-0x00000157E6400000-0x00000157E669E000-memory.dmp
            Download