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 Oct 23rd, 2026

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Tactic or Technique is

Rule Name & Severity	Author	Last Updated	Labels
Abuse: Cloudflare Workers Hosted EvilTokens Domain Structure	Sublime Security	6mo ago Apr 6th, 2026	Credential Phishing Impersonation: Brand Evasion Social engineering URL analysis
Abuse: Robinhood injected content	Sublime Security	5mo ago Apr 30th, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis HTML analysis Sender analysis
Adobe branded PDF file linking to a password-protected file from untrusted sender	Sublime Security	5mo ago Apr 29th, 2026	Malware/Ransomware Encryption Evasion Impersonation: Brand PDF Archive analysis File analysis Natural Language Understanding Optical Character Recognition
Attachment: Adobe image lure in body or attachment with suspicious link	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Image as content Impersonation: Brand Content analysis Computer Vision Optical Character Recognition Sender analysis URL analysis
Attachment: Adobe Sign lure PDF with embedded banner images	Sublime Security	4mo ago Jun 3rd, 2026	Credential Phishing PDF Impersonation: Brand File analysis YARA
Attachment: Compensation-themed DOCX with QR code credential theft	Sublime Security	4mo ago May 29th, 2026	Credential Phishing QR code Social engineering Impersonation: Brand File analysis Optical Character Recognition QR code analysis Natural Language Understanding Exif analysis Content analysis
Attachment: Decoy PDF author (Julie P.)	Sublime Security	5mo ago Apr 29th, 2026	Credential Phishing Impersonation: Brand PDF File analysis Content analysis
Attachment: DocuSign impersonation via PDF linking to new domain	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Impersonation: Brand PDF Social engineering Header analysis Sender analysis URL analysis File analysis Computer Vision Whois
Attachment: Dropbox image lure with no Dropbox domains in links	Sublime Security	1y ago Jul 16th, 2025	Credential Phishing Impersonation: Brand Social engineering Content analysis File analysis Header analysis Optical Character Recognition Sender analysis
Attachment: EML with SharePoint files shared from GoDaddy federated tenants	Sublime Security	1y ago Sep 23rd, 2025	Credential Phishing Evasion Impersonation: Brand Social engineering File analysis URL analysis Content analysis
Attachment: EML with Sharepoint link likely unrelated to sender	Sublime Security	1mo ago Sep 23rd, 2026	BEC/Fraud Credential Phishing Impersonation: Brand Social engineering Evasion File analysis URL analysis Header analysis Sender analysis
Attachment: Fake LinkedIn invoice PDF lure	Sublime Security	2d ago Oct 23rd, 2026	BEC/Fraud Credential Phishing Impersonation: Brand PDF Social engineering YARA File analysis
Attachment: Fake mobileconfig security update profile	Sublime Security	30d ago Sep 25th, 2026	Credential Phishing Impersonation: Brand Social engineering Evasion File analysis Content analysis XML analysis
Attachment: Fake secure message and suspicious indicators	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Image as content Impersonation: Brand Social engineering Content analysis File analysis Header analysis Natural Language Understanding Sender analysis
Attachment: Fake Slack installer	Sublime Security	3y ago Nov 29th, 2023	Malware/Ransomware Evasion HTML smuggling Impersonation: Brand Scripting Social engineering Archive analysis Computer Vision File analysis HTML analysis Natural Language Understanding URL analysis
Attachment: Fake Zoom installer	Sublime Security	3y ago Nov 29th, 2023	Malware/Ransomware Evasion HTML smuggling Impersonation: Brand Scripting Social engineering Archive analysis Computer Vision File analysis HTML analysis Natural Language Understanding URL analysis
Attachment: HTML smuggling Microsoft sign in	Sublime Security	6mo ago Apr 27th, 2026	Credential Phishing Free subdomain host HTML smuggling Impersonation: Brand Social engineering Archive analysis Content analysis File analysis Header analysis Javascript analysis Sender analysis URL analysis
Attachment: HTML smuggling with dynamically constructed redirect URL	Sublime Security	26d ago Sep 29th, 2026	Credential Phishing HTML smuggling Evasion Impersonation: Brand Social engineering Scripting HTML analysis Javascript analysis File analysis
Attachment: HTML with emoji-to-character map	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Evasion HTML smuggling Impersonation: Brand Scripting Social engineering File analysis HTML analysis Javascript analysis Sender analysis
Attachment: ICS invite meeting lure	Sublime Security	27d ago Sep 28th, 2026	Credential Phishing Social engineering Impersonation: Brand Spoofing Open redirect ICS Phishing Content analysis URL analysis Header analysis Sender analysis File analysis
Attachment: Image-only docx/pptx callback phishing	Sublime Security	27d ago Sep 28th, 2026	Callback Phishing Image as content Impersonation: Brand Social engineering File analysis Optical Character Recognition Content analysis
Attachment: Invoice and W-9 PDFs with suspicious creators	Sublime Security	2mo ago Aug 25th, 2026	BEC/Fraud PDF Social engineering Impersonation: Brand File analysis Optical Character Recognition Exif analysis Content analysis
Attachment: Microsoft 365 credential phishing	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis File analysis Header analysis Optical Character Recognition Sender analysis
Attachment: Microsoft impersonation via PDF with link and suspicious language	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Malware/Ransomware Image as content Impersonation: Brand PDF Scripting Social engineering Computer Vision File analysis Header analysis Natural Language Understanding Sender analysis
Attachment: Microsoft OAuth credential harvesting via EML with embedded malicious links	Sublime Security	11d ago Oct 14th, 2026	Credential Phishing Impersonation: Brand Evasion PDF File analysis URL analysis Content analysis
Attachment: Microsoft SharePoint Impersonation via images in macro-enabled attachment	Sublime Security	3mo ago Jul 16th, 2026	Credential Phishing Impersonation: Brand Macros Image as content Social engineering File analysis Macro analysis Optical Character Recognition
Attachment: Oversized guest-list calendar invite with purchase order lure	Sublime Security	27d ago Sep 28th, 2026	BEC/Fraud Social engineering Impersonation: Brand ICS Phishing File analysis Content analysis Natural Language Understanding Sender analysis Header analysis
Attachment: Oversized guest-list calendar invite with voicemail lure	Sublime Security	27d ago Sep 28th, 2026	BEC/Fraud Social engineering Impersonation: Brand ICS Phishing File analysis Content analysis Natural Language Understanding Sender analysis Header analysis
Attachment: PDF blue OneDrive lure	Sublime Security	6d ago Oct 19th, 2026	Credential Phishing PDF Impersonation: Brand Social engineering YARA File analysis
Attachment: PDF file with link to fake Bitcoin exchange	Sublime Security	9mo ago Jan 12th, 2026	BEC/Fraud Free email provider Impersonation: Brand PDF Social engineering Exif analysis File analysis Sender analysis URL analysis
Attachment: PDF including a Microsoft lure with specific signature	Sublime Security	24d ago Oct 1st, 2026	Credential Phishing PDF Impersonation: Brand Social engineering YARA File analysis
Attachment: PDF with Microsoft compensation lure	Sublime Security	6d ago Oct 19th, 2026	BEC/Fraud Credential Phishing PDF Impersonation: Brand Social engineering YARA File analysis
Attachment: PDF with Microsoft Purview message impersonation	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Impersonation: Brand PDF Social engineering File analysis Natural Language Understanding Content analysis
Attachment: PDF With SAI Global ISO9001 Logo	Sublime Security	6mo ago Apr 15th, 2026	Credential Phishing Impersonation: Brand PDF File analysis YARA
Attachment: PDF with secure document acknowledgment prompt	Sublime Security	3mo ago Jul 17th, 2026	Credential Phishing Evasion PDF Social engineering Image as content Impersonation: Brand Content analysis File analysis YARA
Attachment: PDF with W-9 form indicators	Sublime Security	4mo ago Jun 26th, 2026	BEC/Fraud PDF Social engineering Impersonation: Brand YARA File analysis Content analysis
Attachment: Personalized fake order/invoice file naming pattern	Sublime Security	27d ago Sep 28th, 2026	Callback Phishing Social engineering Free email provider Impersonation: Brand File analysis Content analysis Sender analysis
Attachment: QuickBooks PDF lure	Sublime Security	2mo ago Aug 20th, 2026	BEC/Fraud Malware/Ransomware PDF Impersonation: Brand Social engineering YARA File analysis
Attachment: Re-stamped invoice PDF with IRS references from external sender	Sublime Security	9d ago Oct 16th, 2026	BEC/Fraud PDF Social engineering Impersonation: Brand Exif analysis File analysis Optical Character Recognition
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: 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
BEC: Executive coaching vendor impersonation	Sublime Security	3mo ago Jul 1st, 2026	BEC/Fraud Impersonation: Brand Social engineering Content analysis HTML analysis Natural Language Understanding
BEC/Fraud: Urgent language and suspicious sending/infrastructure patterns	Sublime Security	6mo ago Apr 17th, 2026	BEC/Fraud Callback Phishing Spam Impersonation: Brand Social engineering Free email provider Content analysis Header analysis Sender analysis Whois
Body: PayApp transaction reference pattern	Sublime Security	6mo ago Apr 7th, 2026	Callback Phishing BEC/Fraud Impersonation: Brand Social engineering Content analysis
Brand impersonation: AARP	Sublime Security	1mo ago Sep 4th, 2026	BEC/Fraud Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis Sender analysis
Brand impersonation: Aconex	Sublime Security	18d ago Oct 7th, 2026	Credential Phishing Impersonation: Brand Social engineering Spoofing Natural Language Understanding Content analysis Header analysis Sender analysis
Brand impersonation: Adobe Acrobat Sign PDF phishing file format template	Sublime Security	4mo ago Jun 1st, 2026	Credential Phishing Impersonation: Brand PDF Computer Vision Optical Character Recognition File analysis
Brand impersonation: Adobe (QR code)	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Impersonation: Brand PDF QR code Computer Vision Header analysis QR code analysis Sender analysis
Brand impersonation: Adobe Sign with suspicious indicators	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Impersonation: Brand Social engineering Content analysis Header analysis HTML analysis Sender analysis
Brand impersonation: Adobe with suspicious language and link	Sublime Security	1mo ago Sep 23rd, 2026	Credential Phishing Impersonation: Brand Social engineering Computer Vision Content analysis Header analysis Sender analysis

357 Rules

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