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://trafffe.ru/aws?keyword=jeff+dunham+wife+and+kids PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4368237/normal_5f9427318c842.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4420238/normal_5fa5d220bf321.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/tojabixefova/odyssey_of_the_mind_pin_towel.pdfIn PDF document text
  • https://kizikobir.files.wordpress.com/2020/11/problemas_de_gases_ideales_ejercicio.pdfIn PDF document text
  • https://xijadijuf.files.wordpress.com/2020/11/14731176674.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1849be26-7f4b-44cc-b807-91d0cf98004b/99563309296.pdfIn PDF document text
  • https://dusikoxi.files.wordpress.com/2020/11/allegedly_book_online.pdfIn PDF document text
  • https://vuxogomirus.files.wordpress.com/2020/11/mitsubishi_fuso_service_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2e8bb0d9-a7b8-4829-bce9-0885a1194176/91187943186.pdfIn PDF document text
  • https://dipadek.files.wordpress.com/2020/11/63307056887.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ff6fb3e7-00c5-4fdf-8c4d-06344e4a3417/novujafebume.pdfIn PDF document text
  • https://regafuxexa.files.wordpress.com/2020/11/nakebiguvikig.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/97631bfd-8d32-4560-bcbc-a5fd0b37135d/ut_austin_grade_reporting_fall_2019.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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