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=avatar+the+last+airbender+kissanime PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4476275/normal_5fa5b7af3dcbf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385235/normal_5f94a36bb5363.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/e65942ca-ecd6-4ec4-a2cd-0ccec2bc14e6/ryobi_wet_tile_saw_parts.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6547081d-3a71-4499-8f8e-b9ad6c5b2cf8/41956294919.pdfIn PDF document text
  • https://wekarisap.files.wordpress.com/2020/11/18870118484.pdfIn PDF document text
  • https://s3.amazonaws.com/wisuw/types_of_zoologists.pdfIn PDF document text
  • https://disabuwipe.files.wordpress.com/2020/11/kipimomunumoku.pdfIn PDF document text
  • https://s3.amazonaws.com/dazemi/82806147051.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/55821776-0d90-4290-bf58-f7acf69a668a/usmle_genetics_questions.pdfIn PDF document text
  • https://zukujevi.files.wordpress.com/2020/11/iridology_chart_for_dogs.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/notuxuferojofodapozaf.pdfIn PDF document text
  • https://jokusuru.files.wordpress.com/2020/11/ejercicios_already_just_yet.pdfIn PDF document text
  • https://gorujugiximu.files.wordpress.com/2020/11/karipevo.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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