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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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/strik?keyword=city+of+ember+book+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4375209/normal_5f8a113896a59.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367013/normal_5f8746ba3267d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373776/normal_5f92980deaff8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368219/normal_5f943d3f3d7d0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374368/normal_5f894f6fac1ed.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385635/normal_5f8cbf6913e68.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388815/normal_5f94d04a64a85.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369671/normal_5f880beea0e3c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367622/normal_5f87526ad48d3.pdfIn PDF document text
  • https://jikolugoxolij.weebly.com/uploads/1/3/1/3/131379047/d878e0b74e1be82.pdfIn PDF document text
  • https://bulavanu.weebly.com/uploads/1/3/4/3/134341337/a8f7148d7a613.pdfIn PDF document text
  • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/1392291.pdfIn PDF document text
  • https://tumovapexawezan.weebly.com/uploads/1/3/1/3/131398362/6374287.pdfIn PDF document text
  • https://nagigezivozitos.weebly.com/uploads/1/3/4/3/134340852/bexejof_zefolek_dudavuzowuxan.pdfIn PDF document text
  • https://tovozilulu.weebly.com/uploads/1/3/0/8/130873983/xiwuvififitok.pdfIn PDF document text
  • https://folukufisika.weebly.com/uploads/1/3/1/3/131384255/9040992.pdfIn PDF document text
  • https://sitizoxibe.weebly.com/uploads/1/3/4/3/134317871/2408003.pdfIn PDF document text
  • https://vewutaniwem.weebly.com/uploads/1/3/0/8/130873717/1415818.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006ac0.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006ac0.bin)
  • https://cdn.shopify.com/s/files/1/0500/4673/0390/files/zozokifasexo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/09d43bd2-72e2-4fa9-9efa-498f5ebe6027/91844373543.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cdf36cd7-c3f0-4549-85c0-030ae1ed8da9/65864188207.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_off00006ac0.bin)

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