Malicious PDF — malware analysis report

Static analysis result for SHA-256 92fedce1d35e4b6e…

MALICIOUS

PDF

50.6 KB Created: 2021-02-05 06:20:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 5c42398b98d248fabcf9e7bf773b1ca1 SHA-1: 0bff453c5ece51fbec672230a32b959872db086c SHA-256: 92fedce1d35e4b6e4507673fc24d06ef8ce8a2298cf1ac2efbd716ed01978b70
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document that contains a link disguised as a manual. This link, 'https://yafferge.ru/aws?utm_term=assertive+community+treatment+manual', is identified as a malicious redirector. The PDF structure and the presence of this link strongly suggest a phishing attempt to redirect the user to a malicious website.

Machine Learning

  • Nyx PDF Classifier clean score 0.1057

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://yafferge.ru/aws?utm_term=assertive+community+treatment+manual In PDF document text

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