Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fa91515dd2fb905…

MALICIOUS

PDF

18.6 KB Created: 2020-11-08 11:44:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 484f065cdf6319dea6a47c895d8858e2 SHA-1: 9b36f7986c8b310ed9121d60b32c9b425c3aa2bd SHA-256: 4fa91515dd2fb9059bdf2b9b529797a79a425720b2035a10433ab833c15873b1
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, `https://traffine.ru/aws?keyword=drag+race+demon+2`, which is flagged by heuristics as a lure for free downloads, a common phishing tactic. The ML classifier also strongly indicates maliciousness. While no scripts were extracted, the presence of a malicious URL and the document's structure suggest it's intended to lead the user to a malicious site, likely as part of a spearphishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9916

Heuristics 3

  • 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://traffine.ru/aws?keyword=drag+race+demon+2 In PDF document text