Sublime Core Feed

This repo contains open-source Rules for Sublime, a free and open platform for detecting and preventing email attacks like BEC, malware, and credential phishing.

Sublime Security

Last updated Sep 9th, 2026

Feed Source

GitHub

Detection Method is

Rule Name & Severity	Author	Last Updated	Labels
Attachment: MS Office or RTF file with Shell.Explorer.1 com object with embedded LNK	Sublime Security	7mo ago Jan 28th, 2026	Malware/Ransomware Evasion File analysis YARA
Attachment: MS OOXML file created by Administrator with zero edit time	Sublime Security	2mo ago Jun 12th, 2026	Malware/Ransomware Evasion Exif analysis File analysis
Attachment: Office document loads remote document template	Sublime Security	8mo ago Jan 12th, 2026	Malware/Ransomware Archive analysis File analysis URL analysis
Attachment: Office document with VSTO add-in	@vector_sec	8mo ago Jan 12th, 2026	Malware/Ransomware Scripting Archive analysis Content analysis Exif analysis File analysis Sender analysis URL analysis
Attachment: Office file contains OLE relationship to credential phishing page	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing Evasion Social engineering File analysis HTML analysis Natural Language Understanding OLE analysis URL analysis
Attachment: Office file with credential phishing URLs	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing Evasion Social engineering File analysis URL analysis Archive analysis Content analysis
Attachment: Office file with document sharing and browser instruction lures	Sublime Security	7mo ago Jan 29th, 2026	Credential Phishing Social engineering Evasion Archive analysis File analysis Macro analysis Optical Character Recognition Content analysis
Attachment: Office file with suspicious function calls or downloaded file path	Sublime Security	8mo ago Jan 12th, 2026	Malware/Ransomware Evasion Scripting Archive analysis File analysis
Attachment: Password-protected PDF with fake document indicators	Sublime Security	7mo ago Jan 21st, 2026	Malware/Ransomware Credential Phishing Encryption Evasion PDF File analysis YARA Exif analysis
Attachment: PDF Attachment with links to workers.dev	Sublime Security	3mo ago Jun 4th, 2026	Credential Phishing PDF Free subdomain host Evasion File analysis Exif analysis URL analysis
Attachment: PDF bid/proposal lure with credential theft indicators	Sublime Security	5mo ago Mar 27th, 2026	BEC/Fraud Credential Phishing PDF Social engineering Free file host Free subdomain host File analysis Content analysis Optical Character Recognition Natural Language Understanding URL analysis Exif analysis
Attachment: PDF contains W9 or invoice YARA signatures	Sublime Security	5mo ago Mar 18th, 2026	BEC/Fraud Credential Phishing PDF Social engineering File analysis YARA
Attachment: PDF credential phishing via wkhtmltopdf/Qt with suspicious link	Sublime Security	8d ago Sep 2nd, 2026	Credential Phishing PDF Open redirect Social engineering Exif analysis Optical Character Recognition Natural Language Understanding URL analysis File analysis
Attachment: PDF file with link to fake Bitcoin exchange	Sublime Security	8mo ago Jan 12th, 2026	BEC/Fraud Free email provider Impersonation: Brand PDF Social engineering Exif analysis File analysis Sender analysis URL analysis
Attachment: PDF file with low reputation links to suspicious filetypes (unsolicited)	Sublime Security	8mo ago Jan 12th, 2026	Malware/Ransomware Evasion PDF Archive analysis File analysis Sender analysis
Attachment: PDF file with low reputation link to ZIP file (unsolicited)	Michael Tingle	8mo ago Jan 12th, 2026	Malware/Ransomware Evasion PDF Archive analysis File analysis Natural Language Understanding Sender analysis URL analysis
Attachment: PDF file with recipient domain and ATT eCheckRun pattern	Sublime Security	2mo ago Jun 16th, 2026	BEC/Fraud PDF Social engineering File analysis Content analysis
Attachment: PDF generated with wkhtmltopdf tool and default title	Sublime Security	8mo ago Dec 19th, 2025	BEC/Fraud Callback Phishing Credential Phishing Malware/Ransomware PDF Evasion File analysis Exif analysis
Attachment: PDF Grant Payment lure with embedded link	Sublime Security	15d ago Aug 26th, 2026	Credential Phishing PDF Social engineering File analysis URL analysis Content analysis
Attachment: PDF Object Hash associated with a fake invoice and a W-9	Sublime Security	2mo ago Jul 2nd, 2026	BEC/Fraud PDF Evasion File analysis Threat Intelligence
Attachment: PDF Object Hash associated with fake Canada Revenue Agency documents	Sublime Security	2mo ago Jun 17th, 2026	Credential Phishing Malware/Ransomware PDF Evasion File analysis Threat Intelligence
Attachment: PDF Object Hash - Encrypted PDFs with fake payment notification	Sublime Security	6mo ago Mar 2nd, 2026	Malware/Ransomware PDF Evasion File analysis Threat intelligence
Attachment: PDF Object Hash with Blue File Icon	Sublime Security	3mo ago Jun 5th, 2026	Malware/Ransomware PDF Evasion File analysis
Attachment: PDF proposal with credential theft indicators	Sublime Security	17d ago Aug 24th, 2026	Credential Phishing PDF Social engineering Evasion File analysis Natural Language Understanding Optical Character Recognition URL analysis
Attachment: PDF RFP lure	Sublime Security	7d ago Sep 3rd, 2026	Credential Phishing BEC/Fraud PDF Social engineering YARA File analysis
Attachment: PDF templated investment lure	Sublime Security	22d ago Aug 19th, 2026	Malware/Ransomware Credential Phishing PDF Social engineering YARA File analysis
Attachment: PDF with a suspicious string and single URL	Sublime Security	22d ago Aug 19th, 2026	Credential Phishing PDF Social engineering Evasion Content analysis File analysis URL analysis Exif analysis
Attachment: PDF with base64 JavaScript and eval functions	Sublime Security	30d ago Aug 11th, 2026	Malware/Ransomware Evasion PDF File analysis Javascript analysis YARA
Attachment: PDF with blurry lure image	Sublime Security	3mo ago Jun 5th, 2026	Credential Phishing PDF File analysis YARA
Attachment: PDF with bolded passcode	Sublime Security	2d ago Sep 8th, 2026	Credential Phishing PDF Evasion Social engineering HTML analysis Content analysis File analysis
Attachment: PDF with credential theft language and invalid reply-to domain	Sublime Security	5mo ago Apr 10th, 2026	Credential Phishing PDF Social engineering Spoofing File analysis Header analysis Natural Language Understanding Content analysis
Attachment: PDF with credential theft language and link to a free subdomain (unsolicited)	Sublime Security	8mo ago Jan 12th, 2026	Credential Phishing Free subdomain host PDF Social engineering File analysis Natural Language Understanding Optical Character Recognition Sender analysis URL analysis
Attachment: PDF with CVE-2026-34621 lures	Sublime Security	4mo ago Apr 22nd, 2026	Malware/Ransomware PDF File analysis YARA
Attachment: PDF with dub.sh shortened link	Sublime Security	8h ago Sep 9th, 2026	Credential Phishing BEC/Fraud PDF Social engineering Evasion File analysis URL analysis
Attachment: PDF with eCheckRun lures	Sublime Security	3mo ago Jun 5th, 2026	Credential Phishing PDF File analysis YARA
Attachment: PDF with embedded box-lure and javascript	Sublime Security	22d ago Aug 19th, 2026	Credential Phishing Malware/Ransomware PDF Social engineering Evasion File analysis YARA
Attachment: PDF with fake invoice using suspicious font sizing	Sublime Security	3mo ago Jun 9th, 2026	BEC/Fraud Callback Phishing PDF Social engineering File analysis YARA Content analysis
Attachment: PDF with JSFck obfuscation	Sublime Security	4mo ago Apr 22nd, 2026	Malware/Ransomware Evasion PDF File analysis YARA
Attachment: PDF with link to DMG file download	Sublime Security	8mo ago Jan 12th, 2026	Malware/Ransomware Evasion PDF Archive analysis Content analysis File analysis URL analysis
Attachment: PDF with link to zip containing a wsf file	Sublime Security	8mo ago Jan 12th, 2026	Malware/Ransomware Evasion PDF Archive analysis Content analysis File analysis URL analysis
Attachment: PDF with localhost IP in EXIF title metadata	Sublime Security	2mo ago Jun 29th, 2026	Credential Phishing Malware/Ransomware PDF Evasion Exif analysis File analysis Sender analysis
Attachment: PDF with Microsoft Purview message impersonation	Sublime Security	10mo ago Nov 10th, 2025	Credential Phishing Impersonation: Brand PDF Social engineering File analysis Natural Language Understanding Content analysis
Attachment: PDF with multistage landing - ClickUp abuse	Sublime Security	6mo ago Feb 27th, 2026	Credential Phishing Evasion Free file host Free subdomain host PDF Social engineering File analysis URL analysis Whois
Attachment: PDF with password in filename matching body text	Sublime Security	6mo ago Feb 19th, 2026	Malware/Ransomware Credential Phishing Encryption Evasion PDF Content analysis File analysis
Attachment: PDF with personal Microsoft OneNote URL	Sublime Security	9mo ago Dec 4th, 2025	Credential Phishing PDF Social engineering File analysis Content analysis
Attachment: PDF with QR code containing recipient-specific credential theft content	Sublime Security	3mo ago Jun 10th, 2026	Credential Phishing PDF QR code Social engineering File analysis Natural Language Understanding QR code analysis Content analysis
Attachment: PDF with quote lure	Sublime Security	2mo ago Jul 1st, 2026	Credential Phishing Malware/Ransomware PDF Social engineering File analysis YARA
Attachment: PDF with recipient email in link	Sublime Security	3mo ago Jun 10th, 2026	Credential Phishing PDF QR code Encryption Social engineering File analysis QR code analysis URL analysis
Attachment: PDF with ReportLab library and default metadata	Sublime Security	6mo ago Feb 27th, 2026	Credential Phishing PDF Evasion File analysis Exif analysis
Attachment: PDF With SAI Global ISO9001 Logo	Sublime Security	4mo ago Apr 15th, 2026	Credential Phishing Impersonation: Brand PDF File analysis YARA

332 Rules

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