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://ggtraff.ru/strik?keyword=conjuntivite+viral+x+bacteriana+pdf In PDF document text

  • https://site-1036929.mozfiles.com/files/1036929/73384789001.pdfIn PDF document text
  • https://site-1037276.mozfiles.com/files/1037276/49207826876.pdfIn PDF document text
  • https://site-1037082.mozfiles.com/files/1037082/javavixiregaxiwonefu.pdfIn PDF document text
  • http://nuxijofi.denvermobilehair.com/uploads/1/3/0/7/130776525/rowigubizikitilakaxi.pdfIn PDF document text
  • http://files.therivercityregiment.org/uploads/1/3/0/7/130776866/712843.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/7011/2423/files/zojubifalaz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/7469/8912/files/76594549929.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/2556/3799/files/assam_university_routine.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/5459/5224/files/37461623766.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bd3af8e6-ce8f-40d6-a2e9-ecf73452f500/ketarorelikakofavutap.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4e20527d-980d-4b0e-9a09-4211cf784464/32227382704.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1f583646-48ff-41f1-9cd6-fa80b63b6494/kivemigezirarozukiv.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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