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/aws?keyword=brain+clip+art+funny PDF link annotation

  • https://rukinedofixod.weebly.com/uploads/1/3/4/3/134348838/7547496.pdfIn PDF document text
  • https://niwanokanu.weebly.com/uploads/1/3/4/5/134592400/tasasinir.pdfIn PDF document text
  • https://gagumosesixibo.weebly.com/uploads/1/3/4/0/134018544/1633930.pdfIn PDF document text
  • https://miperodijazef.weebly.com/uploads/1/3/4/3/134308013/lilojom_tevuwojesi_kakibuxikosi.pdfIn PDF document text
  • https://panenojaro.weebly.com/uploads/1/3/4/4/134482399/gajatuzonokajiwoka.pdfIn PDF document text
  • https://sofugiri.weebly.com/uploads/1/3/4/5/134509821/denezoxar-tobamodawaxib-xowuxa.pdfIn PDF document text
  • https://rokufekajo.weebly.com/uploads/1/3/0/8/130814342/susop_tobus_ritetebetokuw_vigurajepu.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/5ccae6d5-f6d1-4135-bcfe-a33abd21b906/american_pie_reunion_movie_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8d1929b1-13a1-4af6-a29e-e416857fde45/gefukapopazadetugonidiges.pdfIn PDF document text
  • https://s3.amazonaws.com/turip/dinamicas_grupales_para_adultos_mayores.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0a70b971-a0fc-4792-a8e3-7a03f48de6de/29855952004.pdfIn PDF document text
  • https://s3.amazonaws.com/sivafasiniwe/night_owl_manual.pdfIn PDF document text
  • https://s3.amazonaws.com/jenagubadopi/general_zoology_book_free_download.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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