Malicious PDF — malware analysis report

Heuristics 5

• 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.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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/123?keyword=is+mom+tv+series+on+amazon+prime In PDF document text

  • https://kakawugob.weebly.com/uploads/1/3/0/9/130969990/1607561.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/6408bd79-be87-46e3-a62a-f5bf7165af18/63687226099.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b3f83dd6-dc7d-4cc8-82e3-152d190e48f0/72049548656.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b813ea9f-bff6-4310-bea3-323427d8d2f8/mikilitip.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/397eaf96-2660-4705-9f3a-13889f00f2dc/unknown_mortal_orchestra_multi_love.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f33958c8-8666-4e34-8057-07be7b71244a/tejas.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3010ba5f-3c09-47db-9d6b-77f5e023c9fb/35380714687.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5def9a85-cede-4348-8ca1-9d5e71af740f/datazefakumapelatov.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6a3be684-3e16-4f94-8815-8ab32cf5427c/56024392633.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/13894a5b-6c49-4b18-bf7b-6a6cd7712fd0/25627921544.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c82bf37b-930a-4838-98dc-7a260fe32f64/7318690142.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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