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/123?keyword=clash+of+clans+hack+generator+no+survey PDF link annotation

  • https://fufivivol.weebly.com/uploads/1/3/0/8/130873849/xafitevizedit_tisuzosas.pdfIn PDF document text
  • https://wesodopudo.weebly.com/uploads/1/3/4/2/134234684/a73a1f442.pdfIn PDF document text
  • https://duniripil.weebly.com/uploads/1/3/4/6/134667737/voniwif-kapukesede-kujojav-makikup.pdfIn PDF document text
  • https://detopeda.weebly.com/uploads/1/3/4/3/134305225/surekujuba.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369930/normal_5fa5641246a63.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366647/normal_5f9eac6c4445a.pdfIn PDF document text
  • https://rovumixonisi.weebly.com/uploads/1/3/4/0/134012407/mutojaxagejodepin.pdfIn PDF document text
  • https://nukewixe.weebly.com/uploads/1/3/4/3/134385223/7283838.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/726a5c4e-4d71-4c2a-88af-f33342e66e6f/internet_download_manager_full_indir.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a2cbc3ea-179a-44f1-9d41-9edb656cfad2/dofexoned.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b83cf4e6-07d5-4e42-9420-750ffac58749/44250419456.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/beethoven_piano_sonata_23.pdfIn PDF document text
  • https://s3.amazonaws.com/sowewazulejewi/download_ti84_calculator.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4c3a61bd-d17e-45e9-a8ad-d922c8b661f7/jipivofolid.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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