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://cctraff.ru/strik?keyword=bookish+life+of+nina+hill+pdf In PDF document text

  • https://site-1039919.mozfiles.com/files/1039919/8103345356.pdfIn PDF document text
  • https://site-1036737.mozfiles.com/files/1036737/77314325738.pdfIn PDF document text
  • https://site-1036685.mozfiles.com/files/1036685/29696605421.pdfIn PDF document text
  • http://files.qb4ply.com/uploads/1/3/1/3/131379554/6ffd91f3ed6d7.pdfIn PDF document text
  • http://files.reasawmills.com/uploads/1/3/2/6/132680901/xalomimewawakezo.pdfIn PDF document text
  • http://fontawesome.iohttp://fontawesome.io/license/In 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/76b3a6a3-81cf-41bd-8e12-a4289f521a06/97678362891.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b6e66bd0-53b6-46cb-9174-cc0771eff264/57969746993.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/168f41af-bea7-439b-81ac-21ce0ddba6a0/kepiropoxuba.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/8766/1730/files/la_avena_con_agua_y_azucar_engorda.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/2400/9381/files/caterpillar_in_alice_in_wonderland_exhalation.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/6598/2632/files/broken_azuras_star_skyrim.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0478/6667/5366/files/10740841264.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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