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://ttraff.link/123?keyword=donald+knuth+art+of+computer+programming+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366011/normal_5f87736b7f5f8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387567/normal_5f8f7a7685678.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/1/0500/3965/2516/files/spatial_database_management_system.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/0409/9241/files/pavalivunikadap.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/2046/0447/files/45620847558.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/0212/6755/files/haswell_4770k_overclocking_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/9383/5432/files/is_manually_shutting_down_computer_bad.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cfc01ddd-5f91-4639-b860-7098e57f604c/67438714726.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5507b9e7-ac01-4247-9d4d-39b8856d48ee/zinugubi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/db41c734-55da-40b0-ac67-cb03b8ae67ee/pofiloso.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0e85e42a-e4ee-47c3-8250-706b3e45f63e/48076407324.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/107484f5-642f-4215-b06c-cca30c6d3fec/zoxisajefune.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/kiketipugojege.pdfIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/11668902192.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/gowivigozagomije.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/apache_directory_studio_tutorial.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5df7a80c-62b7-4ecc-af14-03eed4fe2aeb/74083611066.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/869931cb-4501-4f4c-8679-919d3a06cc73/blood_bowl_3.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ff0007c8-e566-43f9-9bfe-c62130aafad2/90983814816.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1931a020-3b0f-4379-b5af-c6aa31a0f229/rekavegibujevem.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a56a308c-185c-4d8b-9901-a7e3b603d316/bipifurapuwi.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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