• Sublime Core Feed
Low Severity

Attachment: PDF generated with wkhtmltopdf tool and default title

Labels

BEC/Fraud
Callback Phishing
Credential Phishing
Malware/Ransomware
PDF
Evasion
File analysis
Exif analysis

Description

Detects PDF attachments that were generated using the wkhtmltopdf conversion tool, which converts HTML/CSS to PDF. This tool is commonly used by attackers to create legitimate-looking PDF documents from web content for social engineering purposes.

References

No references.

Sublime Security
Created Dec 19th, 2025 • Last updated Dec 19th, 2025
Feed Source
Sublime Core Feed
Source
GitHub
type.inbound
and any(filter(attachments, .file_extension == "pdf"),
        strings.istarts_with(beta.parse_exif(.).producer, "Qt")
        and strings.icontains(beta.parse_exif(.).creator, "wkhtmltopdf")
        and beta.parse_exif(.).title == "Document"
)
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