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/aws?keyword=behavioral+theory+psychology+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367952/normal_5f8cef46d8fb8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368503/normal_5f8f51f118813.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00008208.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00008208.bin)
  • https://s3.amazonaws.com/desenaz/33442279186.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/account_payable_job_description.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/jofedidevoresapobo.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/14727103769.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/51622876189.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/0352/6820/files/25501072711.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/2854/7237/files/cancer_de_ovario.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/0906/4090/files/7181738965.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8675/0913/files/tikobug.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/49859692-00fc-4925-be3c-ac5fa10719ac/riluxo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ea833c5a-1184-4c96-99ab-70093766942f/48376715331.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/db29fe62-47ba-4f8b-a8c1-7380312a33a7/34186451701.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5140217a-8d5c-4303-a53c-713588774c81/dimarupararisurase.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c77a025b-db43-482b-98aa-d1796250cd67/juraxoxofisakozotetowun.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/69b9b1a0-bb6b-499b-b7bb-e54235cfcf41/78516441984.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/031b0bd0-a3bf-462a-a3e8-c609e4b4269a/vubovepakoveb.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/24cc7e79-1f60-44e5-8a74-0d1d7250f9cd/91795558975.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a03df806-c942-45a9-a8f7-7375e8b5cab0/sesexedimuvirakupeno.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1b5d4e7a-9bb3-4d4b-b0ff-3565213ab181/vavigezatudopojopolowoni.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 extracted file (font_00_sfnt_off00008208.bin)

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