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://gettraff.ru/123?keyword=free+3rd+grade+linear+measurement+worksheets In PDF document text

  • https://cdn-cms.f-static.net/uploads/4370987/normal_5f88ccc5eb6e4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369141/normal_5f8c46314748a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385026/normal_5f8cf5170e3ea.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373769/normal_5f8d0f7c7f723.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371806/normal_5f8cff20b930d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366327/normal_5f8757d28942a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371003/normal_5f892f6c70f9c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368762/normal_5f8c38e99f2ef.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382189/normal_5f8cf6779da77.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368954/normal_5f87a50b7c5db.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369150/normal_5f8a52a778646.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368251/normal_5f88604902881.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375194/normal_5f8bca8d8f784.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370767/normal_5f89461c720b4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369656/normal_5f8bdecbcd7ee.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368218/normal_5f88783c600a2.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/1/0502/1673/0799/files/borabutimotumibasimo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/4469/8272/files/nomuwatidije.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/7604/9826/files/2856992937.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0465/2780/7646/files/harvest_moon_new_beginning_bachelors_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/3840/7832/files/stoichiometry_mole-mole_and_mass-mass_practice_worksheet.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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