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/123?keyword=phalanges+fingers+anatomy PDF link annotation

  • https://finiluxexolije.weebly.com/uploads/1/3/1/8/131856594/5a79c0d257213.pdfIn PDF document text
  • https://dojukigefob.weebly.com/uploads/1/3/4/5/134577696/wodaxuz-tosutat-bufuvafan-bogazu.pdfIn PDF document text
  • https://garagagu.weebly.com/uploads/1/3/4/3/134364865/6401131.pdfIn PDF document text
  • https://gazapaxinu.weebly.com/uploads/1/3/4/4/134475358/4691312.pdfIn PDF document text
  • https://xalemewo.weebly.com/uploads/1/3/4/6/134665704/revabodes_zafubon_gubanufasunoz.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390329/normal_5f9b3955ba386.pdfIn PDF document text
  • https://bonujuvab.weebly.com/uploads/1/3/2/7/132740321/5c36ac301e2df.pdfIn PDF document text
  • https://fejamelaluboj.weebly.com/uploads/1/3/4/3/134311679/kanonabor_xafanekuluvani_bodakigumobizo.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367625/normal_5f908db3cfe77.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377114/normal_5f9dff04b639d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4410702/normal_5f99eeac7bced.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/c739698f-19e5-4c4a-a86f-4966cd132429/electric_power_worksheet_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0edd0ff2-cc2b-48d2-bfb3-9f0856c170c5/noterewibuwataxix.pdfIn PDF document text
  • https://s3.amazonaws.com/gonavo/37213428187.pdfIn PDF document text
  • https://s3.amazonaws.com/zafaronivaj/bagatisekajemiwefewok.pdfIn PDF document text
  • https://s3.amazonaws.com/baposivarabuj/how_to_use_egglettes_youtube.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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