Attachment: PDF with Microsoft compensation lure

calendar Oct 19, 2026  ยท
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Identifies inbound messages containing PDF attachments that match a YARA signature associated with Microsoft-branded compensation lure.

Sublime rule (View on GitHub)

 1name: "Attachment: PDF with Microsoft compensation lure"
 2description: "Identifies inbound messages containing PDF attachments that match a YARA signature associated with Microsoft-branded compensation lure."
 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,
10                  .name == "pdf_generic_msft_compensation_lure"
11              )
12          )
13  )  
14attack_types:
15  - "BEC/Fraud"
16  - "Credential Phishing"
17tactics_and_techniques:
18  - "PDF"
19  - "Impersonation: Brand"
20  - "Social engineering"
21detection_methods:
22  - "YARA"
23  - "File analysis"
24id: "71dae07b-164b-59a0-b9f5-64df009f7a78"
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