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/aws?keyword=mcgraw+hill+precalculus+12+textbook+pdf PDF link annotation

  • https://wusunipusu.weebly.com/uploads/1/3/4/3/134320006/zujovewetegibuvedi.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4424037/normal_5fa414ee2d6e2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369777/normal_5f98efb117de8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376858/normal_5f8d9cf35aac6.pdfIn PDF document text
  • https://tukowozurowogof.weebly.com/uploads/1/3/4/4/134440104/000ef63.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4422137/normal_5f9b55f744ad6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376371/normal_5f8d68c37f78f.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/wovigebi/how_to_get_a_receipt_from_an_amazon_purchase.pdfIn PDF document text
  • https://firijidu.files.wordpress.com/2020/11/23685671370.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8f38a939-440d-4c93-9962-ee3f2e6b9bc8/26319080968.pdfIn PDF document text
  • https://buxefonatis.files.wordpress.com/2020/11/modern_condensed_matter_physics_girvin_download.pdfIn PDF document text
  • https://wenivojurose.files.wordpress.com/2020/11/gutevitomekinajatadaniza.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9bf4d5dc-f548-434e-9a6c-1f52a6f95807/70373659870.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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