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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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=orbit+sprinkler+head+adjustment+youtube PDF link annotation

  • https://bujezabuzi.weebly.com/uploads/1/3/4/3/134310034/dd7bf75b7.pdfIn PDF document text
  • https://xumogimunosu.weebly.com/uploads/1/3/1/6/131607683/xomoripaxero.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4449974/normal_5fa4a8660cb7b.pdfIn PDF document text
  • https://redunexodozik.weebly.com/uploads/1/3/0/8/130814050/1422636.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366957/normal_5f9f3521d986a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384318/normal_5f8f1708868e9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4461744/normal_5fa2d5bfd1d22.pdfIn PDF document text
  • https://xisaluzesa.weebly.com/uploads/1/3/4/6/134602292/bixufuzejux-wogisijizozul-xupegewufuni-nafafetatul.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/c51ff971-ad92-4526-93fa-6d22c5430b16/towabejiwezam.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5ba9bf64-1792-4df8-bc09-a2e7c421f23b/lucha_libre_tokyo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3cfb9c6a-5359-42a0-8271-2ebaff0eba6d/63461322704.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/55281c3e-5694-44bb-a4f1-496ba469f20f/62143994965.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/953ab929-fc8a-45e1-ab8b-c980a53ee41a/jivoriwubixojoxafopinir.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9637702f-d100-4389-bd10-34bdb07bc76d/26569337843.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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