Malicious PDF — malware analysis report

Heuristics 4

• 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.
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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://traffking.ru/aws?keyword=notes+in+key+of+e+minor In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369631/normal_5fa6ea982fe34.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377112/normal_5f8edab4e3b90.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/3bfcb16b-cc6e-4f6e-a1a6-4b8c3e643f1a/62815459266.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/81358ac9-34b3-4ece-bd82-bae1fed49db0/xeniwinupadovotitunaso.pdfIn PDF document text
  • https://penorabod.files.wordpress.com/2020/11/zubozoxetituw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/88a876f9-a282-4a62-92fa-5e2fdb26e771/65424415338.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a81b6092-8890-4950-b938-fd90284cacae/35806028784.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cfcbbdd0-7e84-4e1d-aff6-75e985804b60/pusakuxojo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/42ce91f8-752b-4f98-a2a4-579c9153481d/48604280942.pdfIn PDF document text
  • https://kixatipu.files.wordpress.com/2020/11/nematexuravokafubonav.pdfIn PDF document text
  • https://mufepokupi.files.wordpress.com/2020/11/purunagegutawesogirifug.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bae5cd6e-9e10-4f8b-8f43-56e414f7edc0/42487791067.pdfIn PDF document text
  • https://rezekine.files.wordpress.com/2020/11/tatojesanawav.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn PDF document text

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