Attachment: PDF templated investment lure

calendar Aug 19, 2026  ยท
Share on: linkedin copy

Detects inbound messages carrying PDF attachments that match a YARA signature for a recurring templated lure using a blue and white design theme.

Sublime rule (View on GitHub)

 1name: "Attachment: PDF templated investment lure"
 2description: "Detects inbound messages carrying PDF attachments that match a YARA signature for a recurring templated lure using a blue and white design theme. "
 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_templated_lure_blue_white")
10          )
11  )  
12attack_types:
13  - "Malware/Ransomware"
14  - "Credential Phishing"
15tactics_and_techniques:
16  - "PDF"
17  - "Social engineering"
18detection_methods:
19  - "YARA"
20  - "File analysis"
21id: "6bae8ea0-544a-5771-a488-18da6b1e861b"
to-top