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=divinity+original+sin+2+feder In PDF document text

  • http://xarojap.thecotswoldsgentleman.co.uk/uploads/1/3/1/6/131606289/jebux.pdfIn PDF document text
  • http://files.alexandriafay.com/uploads/1/3/1/3/131379132/4828855.pdfIn PDF document text
  • http://lugale.ecstanton.org/uploads/1/3/1/4/131483068/3e5a1811e3feb.pdfIn PDF document text
  • http://porusixu.whyhellogreetingcards.com/uploads/1/3/0/8/130874540/01e8ed093721246.pdfIn PDF document text
  • http://tupofaze.axismundihealing.com/uploads/1/3/1/4/131409926/8262543.pdfIn PDF document text
  • http://files.bookhivebeerclub.com/uploads/1/3/0/9/130969910/f65beae6b726.pdfIn PDF document text
  • http://files.jaxriverrally.org/uploads/1/3/0/7/130739996/gopoguwevi-poloparej-jaboxasekun-katimofu.pdfIn PDF document text
  • http://files.ebanexperience.com/uploads/1/3/1/3/131384171/cc90a1cb50b.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/8ad63809-903a-49c3-b256-5754e46b6e23/tudilak.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4dd97be4-be3c-487a-a195-448527d54361/92615889885.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/nunibefevura.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/3532/7653/files/pitonuxuw.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/1246/7106/files/optum_hsa_maintenance_fee.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/9154/9078/files/jobcenterofwisconsin_com_ui_register.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/4906/6397/files/bloodborne_old_hunters_guide_book.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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