Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://trafffi.ru/123?keyword=world+challenge+basketball PDF link annotation

  • https://vewutaniwem.weebly.com/uploads/1/3/0/8/130873717/bowabofes-fadoraxeziluzep-sanubiludazesi-bufazo.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368731/normal_5f91b7908646b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367305/normal_5f9c008164b2e.pdfIn PDF document text
  • https://komolelavox.weebly.com/uploads/1/3/4/5/134518501/1780142.pdfIn PDF document text
  • https://malebikixolu.weebly.com/uploads/1/3/4/3/134358595/niwub_wakika.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366018/normal_5f8711329b0a8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369776/normal_5f88c9e8ca138.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368972/normal_5f92179890613.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/aaa258fa-dbfa-4a40-a939-53dce9ca526f/abc_home_warranty_cost.pdfIn PDF document text
  • https://gokugilevipo.files.wordpress.com/2020/11/koxorab.pdfIn PDF document text
  • https://nelukezufap.files.wordpress.com/2020/11/surowikikexajino.pdfIn PDF document text
  • https://tevadegodi.files.wordpress.com/2020/11/647921009.pdfIn PDF document text
  • https://mutozofe.files.wordpress.com/2020/11/67728004733.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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