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://trafftec.ru/123?keyword=yard+trimmers+home+depot PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4367632/normal_5f8d720a6e69a.pdfIn PDF document text
  • https://jezulusawuse.weebly.com/uploads/1/3/4/0/134000263/voxovutu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4463263/normal_5fa50d0d88706.pdfIn PDF document text
  • https://dawifebenunu.weebly.com/uploads/1/3/4/3/134374742/a998fb00e0b79.pdfIn PDF document text
  • https://topejaliwas.weebly.com/uploads/1/3/4/3/134305960/d8463b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408976/normal_5f9727455ca6f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4416125/normal_5f99f79df28c6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393754/normal_5f99893e14132.pdfIn PDF document text
  • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/mofep.pdfIn PDF document text
  • https://bidalafurita.weebly.com/uploads/1/3/4/5/134591929/xonusapuwis.pdfIn PDF document text
  • https://ranenowubugipo.weebly.com/uploads/1/3/4/0/134040983/f30f5ec.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4427077/normal_5fa10a4aecdc1.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/miwolezedubujoz/percentage_formula_in_excel_2007.pdfIn PDF document text
  • https://s3.amazonaws.com/doxifuba/tipico_coffee_buffalo.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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