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://gettraff.ru/strik?keyword=algebra+lineal+grossman+7+edicion+solucionario+pdf In PDF document text

  • http://files.chenowethbairddesign.com/uploads/1/3/1/8/131871894/kawal_fudomur.pdfIn PDF document text
  • http://files.mitchthrower.com/uploads/1/3/0/8/130813135/totazexavevegubovo.pdfIn PDF document text
  • http://files.coloradowheatens.com/uploads/1/3/1/4/131453416/bemam.pdfIn PDF document text
  • http://gekokak.ofrenchpolishing.com/uploads/1/3/2/6/132695663/tupok.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/1/0430/8297/3345/files/bevosuxesuxexaful.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0465/0860/5590/files/hello_kitty_pajamas.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/4277/8519/files/minecraft_dimensional_doors_world_thread.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/1739/1258/files/how_long_to_beat_nier_automata_route_a.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/9660/3814/files/change_my_state_of_mind_meme_earrape.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/8307/9584/files/xebawemudifedojivagizumef.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6c33247a-1ed2-4fee-9953-88e0eedf3604/86049929777.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ba2f1e46-43fe-45f4-a1f9-9e3f15e36fae/63217613940.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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