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

Tactic or Technique 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 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: OLE external relationship containing file scheme link to executable filetype	Sublime Security	9mo ago Nov 24th, 2025	Malware/Ransomware Evasion Archive analysis Content analysis OLE analysis Sender analysis
Attachment: OLE external relationship containing file scheme link to IP address	Sublime Security	8mo ago Jan 12th, 2026	Malware/Ransomware Evasion Archive analysis Content analysis OLE analysis Sender 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 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 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 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 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 bolded passcode	Sublime Security	2d ago Sep 8th, 2026	Credential Phishing PDF Evasion Social engineering HTML analysis Content analysis File analysis
Attachment: PDF with dub.sh shortened link	Sublime Security	7h ago Sep 9th, 2026	Credential Phishing BEC/Fraud PDF Social engineering Evasion File analysis URL analysis
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 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 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 ReportLab library and default metadata	Sublime Security	6mo ago Feb 27th, 2026	Credential Phishing PDF Evasion File analysis Exif analysis
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 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 HeadlessChrome metadata	Sublime Security	17d ago Aug 24th, 2026	Credential Phishing Malware/Ransomware Evasion PDF File analysis Exif 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: 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: 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: 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: 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: 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

504 Rules

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