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://traffking.ru/aws?keyword=preschool+welcome+letters+to+parents In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369779/normal_5f8bc2dbe0c41.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4417205/normal_5f95071692417.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366044/normal_5fa200a8353ad.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374685/normal_5fa22303ab4e7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388280/normal_5fa5ae36d6fd4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4464311/normal_5fa7d5f8ebb29.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368265/normal_5fa5c8a80c646.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://rawurun.files.wordpress.com/2020/11/63434751621.pdfIn PDF document text
  • https://s3.amazonaws.com/votubukaxogilix/83246739284.pdfIn PDF document text
  • https://s3.amazonaws.com/potevip/solving_equations_and_inequalities_worksheet_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ac2208ad-c586-4fa2-ac2b-d5e7fe601fa5/22098284877.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d7d6e745-b4e5-43d8-9c22-d0948ba15321/le_plan_cycle_2.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c371e1f6-a538-4df9-8193-18c3f254485f/whole30_shopping_list_trader_joes.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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