Attachment: PDF teal SharePoint lure

calendar Oct 5, 2026  ยท
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Detects inbound emails containing PDF attachments that match a yara rule looking for specific teal SharePoint lures.

Sublime rule (View on GitHub)

 1name: "Attachment: PDF teal SharePoint lure"
 2description: "Detects inbound emails containing PDF attachments that match a yara rule looking for specific teal SharePoint lures."
 3type: "rule"
 4severity: "medium"
 5source: |
 6  type.inbound
 7  and any(filter(attachments, .file_type == "pdf"),
 8          any(file.explode(.),
 9              any(.scan.yara.matches, .name == "pdf_teal_web2pdf")
10          )
11  )  
12attack_types:
13  - "Credential Phishing"
14tactics_and_techniques:
15  - "PDF"
16detection_methods:
17  - "File analysis"
18  - "YARA"
19id: "2c35e244-685c-5c64-a818-6ae985c687a0"
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