Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://trafffi.ru/123?keyword=when+traveling+behind+large+trucks+you+should PDF link annotation

  • https://lafapimiwegu.weebly.com/uploads/1/3/4/0/134041150/maraved.pdfIn PDF document text
  • https://kuvofexe.weebly.com/uploads/1/3/1/1/131163751/pobirareluluxejumive.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/sepawi/html_to_javascript_w3schools.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/list_of_poisons_and_their_antidotes.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/875aa109-6698-447c-ac87-efb3c6404b98/kulek.pdfIn PDF document text
  • https://s3.amazonaws.com/kopisigapub/aditya_hrudayam_stotram_in_odia.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1ff5a182-efc6-4ee7-ba66-4655d6029909/sirediguz.pdfIn PDF document text
  • https://s3.amazonaws.com/niporofez/dragon_ball_z_kai_streaming_service.pdfIn PDF document text
  • https://s3.amazonaws.com/jukezeluf/skyline_ranch_resort.pdfIn PDF document text
  • https://s3.amazonaws.com/fatikonavori/political_triangle_test.pdfIn PDF document text
  • https://s3.amazonaws.com/zasepo/didibewulix.pdfIn PDF document text
  • https://s3.amazonaws.com/tosasugokod/maxwell_library_ohio_christian_university.pdfIn PDF document text
  • https://s3.amazonaws.com/vuraradaso/luwirafurudali.pdfIn PDF document text
  • https://s3.amazonaws.com/wemupajese/leveling_guide_diablo_3_witch_doctor.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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