file_event_win_pdf_html_smuggle.yml

title: PDF HTML Smuggling
id: 8a5f8cf0-aebe-49f2-bfcf-3e6b19a54e05
status: experimental
description: Detects a HTML file dropped from a PDF file
references:
    - https://twitter.com/si_falconteam/status/1682341485792960513
    - https://delivr.to/payloads?id=10fea5c5-9a05-423d-82cb-ea21e28ddc27
author: delivr.to
date: 2023/08/29
tags:
    - attack.initial_access
    - attack.t1566.001
logsource:
    category: file_event
    product: windows
detection:
    selection:
        TargetFilename|contains: '\AppData\Local\Temp\acrobat_sbx\'
        TargetFilename|endswith:
            - '.html'
            - '.htm'
            - '.shtml'
            - '.dhtml'
            - '.xhtml'
            - '.xhtm'
            - '.xht'
            - '.svg'
    condition: selection
falsepositives:
    - Unknown
level: medium