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 Jun 8th, 2026

Feed Source

GitHub

Detection Method is

Rule Name & Severity	Author	Last Updated	Labels
Attachment: PDF with a suspicious string and single URL	Sublime Security	4d ago Jun 4th, 2026	Credential Phishing PDF Social engineering Evasion Content analysis File analysis URL analysis Exif analysis
Attachment: PDF with blurry lure image	Sublime Security	3d ago Jun 5th, 2026	Credential Phishing PDF File analysis YARA
Attachment: PDF with credential theft language and invalid reply-to domain	Sublime Security	1mo 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	4mo 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	1mo ago Apr 22nd, 2026	Malware/Ransomware PDF File analysis YARA
Attachment: PDF with eCheckRun lures	Sublime Security	3d ago Jun 5th, 2026	Credential Phishing PDF File analysis YARA
Attachment: PDF with JSFck obfuscation	Sublime Security	1mo ago Apr 22nd, 2026	Malware/Ransomware Evasion PDF File analysis YARA
Attachment: PDF with link to DMG file download	Sublime Security	4mo 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	4mo ago Jan 12th, 2026	Malware/Ransomware Evasion PDF Archive analysis Content analysis File analysis URL analysis
Attachment: PDF with Microsoft Purview message impersonation	Sublime Security	7mo 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	3mo 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	3mo ago Feb 19th, 2026	Malware/Ransomware Credential Phishing Encryption Evasion PDF Content analysis File analysis
Attachment: PDF with personal Microsoft OneNote URL	Sublime Security	6mo ago Dec 4th, 2025	Credential Phishing PDF Social engineering File analysis Content analysis
Attachment: PDF with recipient email in link	Sublime Security	3mo ago Mar 3rd, 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	3mo ago Feb 27th, 2026	Credential Phishing PDF Evasion File analysis Exif analysis
Attachment: PDF With SAI Global ISO9001 Logo	Sublime Security	1mo ago Apr 15th, 2026	Credential Phishing Impersonation: Brand PDF File analysis YARA
Attachment: PDF with specific author metadata	Sublime Security	7d ago Jun 1st, 2026	Credential Phishing PDF Exif analysis File analysis
Attachment: PDF with split QR code	Sublime Security	1mo ago Apr 15th, 2026	Credential Phishing Evasion PDF QR code File analysis YARA QR code analysis
Attachment: PDF with suspicious HeadlessChrome metadata	Sublime Security	1mo ago May 1st, 2026	Credential Phishing Malware/Ransomware Evasion PDF File analysis Exif analysis
Attachment: PDF with suspicious language and redirect to suspicious file type	Sublime Security	4mo 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	21d ago May 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	1mo ago Apr 23rd, 2026	Credential Phishing Malware/Ransomware PDF Social engineering Evasion File analysis YARA
Attachment: Potential sandbox evasion in Office file	@ajpc500	4mo ago Jan 12th, 2026	Malware/Ransomware Evasion Macros File analysis Macro analysis
Attachment: PowerPoint with suspicious hyperlink	Sublime Security	4mo ago Jan 12th, 2026	Malware/Ransomware Evasion Scripting Exif analysis File analysis
Attachment: PowerShell content	@ajpc500	10mo ago Aug 5th, 2025	Malware/Ransomware Scripting Archive analysis File analysis
Attachment: QR code link with base64-encoded recipient address	Sublime Security	1mo 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	4mo 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	3mo 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	3mo 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	1mo ago Apr 30th, 2026	Credential Phishing Malware/Ransomware Evasion Image as content PDF QR code QR code analysis File analysis Sender analysis
Attachment: RDP connection file	@ajpc500	10mo 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	7mo 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: RTF file with suspicious link	Sublime Security	10mo 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: Self-sender PDF with minimal content and view prompt	Sublime Security	3mo 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	4mo ago Jan 12th, 2026	Malware/Ransomware Evasion Scripting File analysis
Attachment: Small text file with link containing recipient email address	Sublime Security	25d ago May 14th, 2026	Credential Phishing Evasion Social engineering File analysis URL analysis
Attachment: Soda PDF producer with encryption themes	Sublime Security	10mo ago Aug 5th, 2025	Credential Phishing PDF Social engineering File analysis Optical Character Recognition
Attachment soliciting user to enable macros	Sublime Security	4mo 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	5mo 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	1mo ago May 7th, 2026	Credential Phishing Evasion PDF Content analysis Exif analysis File analysis Optical Character Recognition
Attachment: SVG file execution	Sublime Security	10mo ago Aug 8th, 2025	Malware/Ransomware Scripting Archive analysis Content analysis File analysis
Attachment: SVG files with evasion elements	Sublime Security	1mo 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	19d 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	19d ago May 20th, 2026	Credential Phishing Evasion Image as content File analysis XML analysis Content analysis
Attachment: TAR file with RAR type	Sublime Security	1mo ago Apr 24th, 2026	Malware/Ransomware Evasion Archive analysis File analysis
Attachment: Uncommon compressed file	Sublime Security	4mo ago Jan 12th, 2026	Malware/Ransomware Credential Phishing Archive analysis File analysis
Attachment: USDA bid invitation impersonation	Sublime Security	10mo 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	10mo ago Aug 8th, 2025	Credential Phishing Malware/Ransomware HTML smuggling Evasion File analysis HTML analysis Content analysis

281 Rules

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