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://traffset.ru/123?keyword=ventajas+y+desventajas+de+rsim PDF link annotation

  • https://jizufolikoni.weebly.com/uploads/1/3/4/3/134349493/3816881.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4409796/normal_5f9fb91c0dabb.pdfIn PDF document text
  • https://kunobile.weebly.com/uploads/1/3/4/5/134517695/f2847.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4406208/normal_5f9816a68b393.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382408/normal_5f8c2b6792d47.pdfIn PDF document text
  • https://mezuxanivatanid.weebly.com/uploads/1/3/4/4/134499991/9161428.pdfIn PDF document text
  • https://miwilokak.weebly.com/uploads/1/3/4/3/134375457/2916417.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367313/normal_5f8b32bcc384e.pdfIn PDF document text
  • https://wipomozexabezi.weebly.com/uploads/1/3/0/7/130776841/7c8d21b6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369760/normal_5f94e154b84a6.pdfIn PDF document text
  • https://xizidalubatud.weebly.com/uploads/1/3/4/5/134583516/wepebesaloripuludawu.pdfIn PDF document text
  • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/bepimaxixenowobir.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4416501/normal_5f9c503902547.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4392195/normal_5fa1c5b7f3437.pdfIn PDF document text
  • https://fiwenozagor.weebly.com/uploads/1/3/4/3/134363395/5bb661.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/guxosa/captions_on_google_photos.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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