Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca09fc3062f7902c…

MALICIOUS

PDF

49.6 KB Created: 2021-02-21 19:54:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 2511b254cb5b629841c372b5f84cecb1 SHA-1: e40551b6af134dc7c9c5bbdf803143ea91167f74 SHA-256: ca09fc3062f7902cef085a697d80e6416de64c8e578659c53221b9872b215673
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a lure related to firearm ammunition, which is a common tactic for phishing or malware distribution. It embeds an external URI pointing to 'bologen.ru', identified as a redirector for free-download phishing. ClamAV detection and ML classification further indicate malicious intent. No scripts were extracted, but the overall structure and embedded URL suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7587

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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://bologen.ru/aws?utm_term=what+kind+of+ammo+does+a+taurus+g2c+use PDF link annotation
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