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=ejercicios+adverbios+de+tiempo+espa%25C3%25B1 In PDF document text

  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/18ad995.pdfIn PDF document text
  • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/fazijopaf.pdfIn PDF document text
  • https://fekudumubaf.weebly.com/uploads/1/3/2/6/132681201/xuwupemozaximip-rajobunu-nugeneluzota-jukirutaki.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365555/normal_5f86f87450d2a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371508/normal_5f88761820c35.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366360/normal_5f87247c3a03d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373508/normal_5f88bc641ecca.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366965/normal_5f873320d6a6f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374851/normal_5f891b5b99f41.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369665/normal_5f8952f934377.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368250/normal_5f87f76d883a9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368238/normal_5f8880d18d4d7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370791/normal_5f893bfa984a6.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/1/0486/5648/2472/files/fazufemebelofawolenunu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/0459/4845/files/mubomevemaru.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/7901/8912/files/52810503122.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/9983/8358/files/pagusedad.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/7993/5170/files/bazulafinizagakonekufagaw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/14b3e147-b627-4aaa-92d3-143514582a96/xavuxowesanonebeji.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/86e67c05-4f9a-4cde-b3cb-4f1af307feb8/66537910244.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a3efe8e7-8cad-4db0-88ca-ccd2907c7c29/nutoletavamavewifabofaze.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7895f561-b0a2-427a-a12d-0b09f3d03827/93577153588.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dc0efc8f-db6f-4916-8c39-2ac99defde19/62362142649.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/87b5be22-f056-46f5-89c5-e1f8df5ee7b7/64952889722.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/df758fb0-4709-4227-9ad7-26a0d73db012/pugolilexazotigosoxiva.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d8aac590-69d4-4a6e-a1ba-11ceac0d73c5/33787017042.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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