• Sublime Core Feed
High Severity

Link: URL fragment with hexadecimal pattern obfuscation

Labels

Credential Phishing
Evasion
Content analysis
URL analysis

Description

Detects links containing URL fragments with repeating hexadecimal patterns, commonly used to obfuscate malicious destinations or bypass security filters.

References

No references.

Sublime Security
Created Jan 29th, 2026 • Last updated Jan 29th, 2026
Feed Source
Sublime Core Feed
Source
GitHub
type.inbound
and any(body.links,
        regex.contains(.href_url.fragment, '.html\/\?(?:[a-f0-9]{2}\.){12,}')
)
MQL Rule Console
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Playground

Test against your own EMLs or sample data.

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