Attachment: QuickBooks payment image lure PDF

calendar Nov 6, 2026  ยท
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Detects inbound messages containing PDF attachments that match a YARA signature identifying QuickBooks-branded payment image lures.

Sublime rule (View on GitHub)

 1name: "Attachment: QuickBooks payment image lure PDF"
 2description: "Detects inbound messages containing PDF attachments that match a YARA signature identifying QuickBooks-branded payment image 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,
10                  .name == "pdf_quickbooks_payment_image_lure"
11              )
12          )
13  )  
14attack_types:
15  - "BEC/Fraud"
16  - "Credential Phishing"
17tactics_and_techniques:
18  - "Impersonation: Brand"
19  - "PDF"
20  - "Social engineering"
21detection_methods:
22  - "YARA"
23  - "File analysis"
24id: "56a09ea6-30f1-5ae8-b05c-d794f2981180"
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