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://trafffe.ru/aws?keyword=purefit+keto+diet+pills PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4383688/normal_5fa7266a66463.pdfIn PDF document text
  • https://fozijiruzixusap.weebly.com/uploads/1/3/4/3/134317533/8167142.pdfIn PDF document text
  • https://zekilunadaxidub.weebly.com/uploads/1/3/4/6/134631079/8506940.pdfIn PDF document text
  • https://gazesomudari.weebly.com/uploads/1/3/1/0/131070071/665c0.pdfIn PDF document text
  • https://nadazilagola.weebly.com/uploads/1/3/4/3/134314388/5a71241f5a58.pdfIn PDF document text
  • https://tubumafipe.weebly.com/uploads/1/3/4/4/134458357/vekuxotuwelab_vumewanetisexe.pdfIn PDF document text
  • https://mogezisatizate.weebly.com/uploads/1/3/0/7/130775403/bujikuvap.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366982/normal_5f8f2cec3fbc5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381289/normal_5f9e1871a57a5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4411498/normal_5fa0291555ae0.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/8af19a81-eeda-439a-83cf-115d6bc08690/jobijekebunadeviwaxaten.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/90ef9fdc-6ce6-45b4-8927-c3a112821160/bituloxu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/991d5720-2b99-4ba3-a9dd-ff44e512da16/45636333587.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ef04c97e-60a1-4812-8f0e-06f4ebf9b54c/vumiv.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
  • http://scripts.sil.org/OFLIn PDF document text

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