Malicious PDF — malware analysis report

Static analysis result for SHA-256 aac7b35067df2b55…

MALICIOUS

PDF

41.6 KB Created: 2021-02-24 12:14:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 61b8517509c20cebbe38b1cd7656bb1a SHA-1: 8e5bad3abe550a2c083c0d5e471c703b73a5bbbe SHA-256: aac7b35067df2b5555f122fdc0b627e999ddece8873fef8992d7b4266e7ccf56
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a lure related to 'social contract' and is flagged by ClamAV as Pdf.Phishing.Trojan. The embedded URL leads to a redirector, indicating a phishing attempt to compromise user credentials or deliver further malware. No scripts were extracted, but the overall structure and URL suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5579

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://druttle.ru/aws?utm_term=what+is+meant+by+a+social+contract+and+how+can+it+be+broken PDF link annotation

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