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: PDF with secure document acknowledgment prompt	Sublime Security	1mo ago Jul 17th, 2026	Credential Phishing Evasion PDF Social engineering Image as content Impersonation: Brand Content analysis File analysis YARA
Attachment: PDF with self-service platform links with self sender or blank recipients	Sublime Security	3mo ago Jun 10th, 2026	BEC/Fraud Credential Phishing PDF Evasion Free file host File analysis Exif analysis URL analysis Sender analysis
Attachment: PDF with specific author metadata	Sublime Security	3mo ago Jun 1st, 2026	Credential Phishing PDF Exif analysis File analysis
Attachment: PDF with specific W-9 lure	Sublime Security	2mo ago Jul 1st, 2026	BEC/Fraud PDF Social engineering File analysis YARA
Attachment: PDF with split QR code	Sublime Security	4mo ago Apr 15th, 2026	Credential Phishing Evasion PDF QR code File analysis YARA QR code analysis
Attachment: PDF with suspicious document view lure	Sublime Security	1mo ago Jul 14th, 2026	Malware/Ransomware PDF Social engineering Content analysis File analysis YARA
Attachment: PDF with suspicious HeadlessChrome metadata	Sublime Security	17d ago Aug 24th, 2026	Credential Phishing Malware/Ransomware Evasion PDF File analysis Exif analysis
Attachment: PDF with suspicious internal object reference identifier	Sublime Security	2mo ago Jun 29th, 2026	BEC/Fraud PDF Content analysis File analysis
Attachment: PDF with suspicious language and redirect to suspicious file type	Sublime Security	8mo ago Jan 12th, 2026	Malware/Ransomware Credential Phishing Evasion PDF File analysis Natural Language Understanding Optical Character Recognition URL analysis
Attachment: PDF with suspicious link and action-oriented language	Sublime Security	23d ago Aug 18th, 2026	Credential Phishing PDF Social engineering Evasion File analysis URL analysis Content analysis URL screenshot
Attachment: PDF with suspicious view document characteristics	Sublime Security	4mo ago Apr 23rd, 2026	Credential Phishing Malware/Ransomware PDF Social engineering Evasion File analysis YARA
Attachment: PDF with View RFP Document lure with external link	Sublime Security	14d ago Aug 27th, 2026	Credential Phishing PDF Social engineering File analysis URL analysis Content analysis
Attachment: PDF with W-9 form indicators	Sublime Security	2mo ago Jun 26th, 2026	BEC/Fraud PDF Social engineering Impersonation: Brand YARA File analysis Content analysis
Attachment: Potential sandbox evasion in Office file	@ajpc500	8mo ago Jan 12th, 2026	Malware/Ransomware Evasion Macros File analysis Macro analysis
Attachment: PowerPoint with suspicious hyperlink	Sublime Security	8mo ago Jan 12th, 2026	Malware/Ransomware Evasion Scripting Exif analysis File analysis
Attachment: PowerShell content	@ajpc500	1y ago Aug 5th, 2025	Malware/Ransomware Scripting Archive analysis File analysis
Attachment: QR code link with base64-encoded recipient address	Sublime Security	4mo ago Apr 29th, 2026	Credential Phishing QR code Image as content Social engineering Evasion PDF Macros Computer Vision File analysis Natural Language Understanding QR code analysis Sender analysis
Attachment: QR code with encoded recipient targeting and redirect indicators	Sublime Security	7mo ago Jan 30th, 2026	Credential Phishing QR code Evasion Image as content Open redirect Archive analysis File analysis QR code analysis URL analysis
Attachment: QR code with recipient targeting and special characters	Sublime Security	6mo ago Feb 21st, 2026	Credential Phishing QR code Social engineering Evasion File analysis QR code analysis URL analysis Computer Vision
Attachment: QR code with suspicious URL patterns in EML file	Sublime Security	6mo ago Feb 21st, 2026	Credential Phishing QR code Evasion Social engineering Archive analysis File analysis QR code analysis URL analysis
Attachment: QR code with userinfo portion	Sublime Security	4mo ago Apr 30th, 2026	Credential Phishing Malware/Ransomware Evasion Image as content PDF QR code QR code analysis File analysis Sender analysis
Attachment: QuickBooks PDF lure	Sublime Security	21d ago Aug 20th, 2026	BEC/Fraud Malware/Ransomware PDF Impersonation: Brand Social engineering YARA File analysis
Attachment: RDP connection file	@ajpc500	1y ago Aug 5th, 2025	Malware/Ransomware Credential Phishing Archive analysis File analysis
Attachment: RFC822 containing suspicious file sharing language with links from untrusted sender	Sublime Security	10mo ago Nov 4th, 2025	Credential Phishing Evasion Social engineering File analysis Header analysis Natural Language Understanding Sender analysis
Attachment: RFP/RFQ impersonating government entities	Sublime Security	2y ago Jan 30th, 2024	BEC/Fraud Impersonation: Brand PDF Social engineering Content analysis File analysis Natural Language Understanding Optical Character Recognition Sender analysis
Attachment: Risk assessment PDF with inline image	Sublime Security	16d ago Aug 25th, 2026	Malware/Ransomware Spam Image as content PDF Social engineering File analysis HTML analysis Header analysis Sender analysis
Attachment: Romance scam with image lure and advance-fee or suspicious link indicators	Sublime Security	2mo ago Jul 1st, 2026	BEC/Fraud Spam Social engineering Image as content Free email provider Free file host Out of band pivot Natural Language Understanding Header analysis Sender analysis Content analysis URL analysis File analysis
Attachment: RTF file with suspicious link	Sublime Security	1y ago Jul 23rd, 2025	Credential Phishing Evasion Archive analysis File analysis Sender analysis URL analysis
Attachment: RTF with embedded content	@amitchell516	2y ago Feb 26th, 2024	Malware/Ransomware Evasion File analysis YARA
Attachment: RTF with link to free-hosted Cloudflare Pages	Sublime Security	28d ago Aug 13th, 2026	Credential Phishing Free subdomain host File analysis URL analysis HTML analysis Sender analysis
Attachment: Self-sender PDF with minimal content and view prompt	Sublime Security	6mo ago Feb 12th, 2026	Credential Phishing Malware/Ransomware PDF Social engineering Evasion Content analysis File analysis Sender analysis
Attachment: SFX archive containing commands	Sublime Security	8mo ago Jan 12th, 2026	Malware/Ransomware Evasion Scripting File analysis
Attachment: Single-page PDF with S3-hosted HTML link	Sublime Security	1mo ago Jul 16th, 2026	Credential Phishing PDF Free file host Evasion File analysis Exif analysis URL analysis
Attachment: Small text file with link containing recipient email address	Sublime Security	3mo ago May 14th, 2026	Credential Phishing Evasion Social engineering File analysis URL analysis
Attachment: Soda PDF producer with encryption themes	Sublime Security	1y ago Aug 5th, 2025	Credential Phishing PDF Social engineering File analysis Optical Character Recognition
Attachment soliciting user to enable macros	Sublime Security	8mo ago Jan 12th, 2026	Malware/Ransomware Macros Archive analysis File analysis Macro analysis Optical Character Recognition Sender analysis
Attachment: Suspicious employee policy update document lure	Sublime Security	8mo ago Dec 26th, 2025	Credential Phishing PDF Social engineering Evasion Content analysis File analysis Sender analysis
Attachment: Suspicious PDF created with headless browser	Sublime Security	2mo ago Jul 1st, 2026	Credential Phishing Evasion PDF Content analysis Exif analysis File analysis Optical Character Recognition
Attachment: SVG file execution	Sublime Security	1y ago Aug 8th, 2025	Malware/Ransomware Scripting Archive analysis Content analysis File analysis
Attachment: SVG files with evasion elements	Sublime Security	4mo ago May 8th, 2026	Malware/Ransomware Credential Phishing QR code Image as content Evasion File analysis XML analysis QR code analysis Sender analysis
Attachment: SVG file with HTML entity encoded href attributes	Sublime Security	3mo ago May 20th, 2026	Malware/Ransomware Credential Phishing Evasion HTML smuggling File analysis Content analysis
Attachment: SVG file with hyperlinks and cursor styling	Sublime Security	3mo ago May 20th, 2026	Credential Phishing Evasion Image as content File analysis XML analysis Content analysis
Attachment: TAR file with RAR type	Sublime Security	4mo ago Apr 24th, 2026	Malware/Ransomware Evasion Archive analysis File analysis
Attachment: Targeted DOCX with personalized recipient acknowledgement lure	Sublime Security	1mo ago Aug 4th, 2026	Credential Phishing Social engineering Archive analysis Content analysis File analysis XML analysis
Attachment: Uncommon compressed file	Sublime Security	8mo ago Jan 12th, 2026	Malware/Ransomware Credential Phishing Archive analysis File analysis
Attachment: USDA bid invitation impersonation	Sublime Security	1y ago Aug 5th, 2025	BEC/Fraud Impersonation: Brand PDF Macros Social engineering Content analysis File analysis Header analysis Natural Language Understanding Optical Character Recognition Sender analysis
Attachment: Web files with suspicious comments	Sublime Security	1y ago Aug 8th, 2025	Credential Phishing Malware/Ransomware HTML smuggling Evasion File analysis HTML analysis Content analysis
Attachment: WinRAR CVE-2025-8088 exploitation	Sublime Security	8mo ago Jan 12th, 2026	Malware/Ransomware Exploit Evasion Archive analysis File analysis YARA
Attachment with auto-executing macro (unsolicited)	Sublime Security	3mo ago Jun 5th, 2026	Malware/Ransomware Macros Archive analysis Header analysis File analysis Macro analysis OLE analysis Sender analysis
Attachment with auto-opening VBA macro (unsolicited)	Sublime Security	8mo ago Jan 12th, 2026	Malware/Ransomware Macros Archive analysis File analysis Macro analysis Sender analysis

332 Rules

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