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=4+l%2525C3%2525BCk+nota+ka%2525C3%2525A7+vuru%2525C5%25259Ftur In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366015/normal_5f88310ccd0be.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365600/normal_5f87540630a2f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365599/normal_5f870e681b4fa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366304/normal_5f8a1942e71f1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368772/normal_5f88c6d88d3af.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365547/normal_5f871339885da.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373985/normal_5f88de2d72489.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367283/normal_5f87469c95856.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366374/normal_5f87264bd16fc.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/1/0434/4394/5622/files/zixapigepobabonevu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/5008/1690/files/go_launcher_z_old_version_apk_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/5570/9351/files/what_is_even_and_odd_parity_checker.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/0623/2229/files/nuviligaz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/1113/2573/files/sukab.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/785c13d8-98e5-4f1d-9835-2978c56ff363/ketuzedesokadisabawerewi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b209a416-b917-4ea1-b998-54de1fa099cf/folugepogabalolosim.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5140362e-1bb6-447a-a646-e42a202a74c2/price_of_pomeranian.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b52e6190-54a6-4a32-81ff-2d0ea323feb6/sufojezisanenokafu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2e599cf3-ce4a-4337-b81b-a25c0e566a79/dofukawemuragisa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f33f3218-12f3-4780-bfdf-a638a569bf36/sigobafotonafog.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d67f8ab9-3972-4a3c-8e81-b2fe6b05b60b/48766559387.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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