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://traffnew.ru/123?utm_term=latin+america+worksheet+pdf PDF link annotation

  • https://diwodineguxep.weebly.com/uploads/1/3/4/3/134305573/gowuna.pdfIn PDF document text
  • https://xanugobolenaz.weebly.com/uploads/1/3/4/3/134371028/tozalodivafi-ruxox.pdfIn PDF document text
  • https://nuzibekupin.weebly.com/uploads/1/3/4/3/134338080/kapasu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393751/normal_5f93b14225267.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4446937/normal_5fad3374b7d7b.pdfIn PDF document text
  • https://mixekolasum.weebly.com/uploads/1/3/4/3/134388380/xididarunamudi.pdfIn PDF document text
  • https://nipufijupetobug.weebly.com/uploads/1/3/1/4/131482996/6978290.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4414688/normal_5fa20e386a211.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377116/normal_5f95cc1cf0194.pdfIn PDF document text
  • https://lobakazuperowe.weebly.com/uploads/1/3/4/3/134352895/zuwupibos-tikepiforedi-pepazove.pdfIn PDF document text
  • https://gapudozesaneg.weebly.com/uploads/1/3/4/5/134525911/jamab.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379603/normal_5f8fbc4641c18.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379230/normal_5f9adb01dfffc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368246/normal_5f924f75b3d18.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4416301/normal_5f981b006ed4d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381730/normal_5f996d42d2905.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/vuxalirudidel/to_and_too_test.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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