Malicious PDF — malware analysis report

Static analysis result for SHA-256 48be3447be385d9c…

MALICIOUS

PDF

47.5 KB Created: 2021-06-23 10:02:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 57711653ab30c2c1d4218c3f6335d390 SHA-1: 94d486eb9615940213bfb9c1dcc29cb06a57b4ab SHA-256: 48be3447be385d9c17955fb46146d0f32fd898fabd3236fa73185d9995dd0388
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was detected as malicious by ClamAV and ML classifiers, indicating it is likely a phishing or trojan delivery mechanism. The presence of a PDF_SEO_UTM_REDIRECTOR_LINK heuristic suggests the document attempts to lure users into clicking a link that redirects to a malicious download. While no scripts were extracted, the overall structure and heuristics point to a phishing attempt disguised as technical research.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5764

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://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=blue+planet+project+alien+technical+research+pdf PDF link annotation