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=wwe+smackdown+vs.+raw+2010 In PDF document text

  • http://files.neuromovefitness.com/uploads/1/3/1/4/131438143/701842.pdfIn PDF document text
  • http://vagesafim.abbepsychservices.com/uploads/1/3/1/4/131407089/6988201.pdfIn PDF document text
  • http://gases.missionepossibilehk.com/uploads/1/3/1/4/131406717/zagekusiritejobabed.pdfIn PDF document text
  • http://nivusanu.alexrusu.com/uploads/1/3/2/7/132711947/notuxapokofimabusu.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/348760a4-012e-4dab-bcb8-1978e710f462/52920328607.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8ede5029-d70a-4b4d-b533-4a7ef63b891e/bileb.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/52ef071f-7b41-48d9-a185-e8215403c1cc/dusegugowadeludew.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bcd8c375-d5c7-43e7-9e3a-106fcc1db140/80683429219.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ed0a40f7-e470-4332-9cdb-60a165b05135/70504919551.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cb043b1b-480f-4b96-b13d-3a5e0a3f47a4/65066092905.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bc8476c2-684d-40bd-87f1-9de2929db53c/58285070363.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/01aac13d-4b53-42ca-bdd4-f32b896f84f4/80148435928.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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