Malicious PDF — malware analysis report

Heuristics 6

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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.
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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.
• 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://cctraff.ru/aws?keyword=canadian+boater+exam+study+guide+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367643/normal_5f893612718db.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4409799/normal_5f9432d6d0d52.pdfIn PDF document text
  • https://ganizosu.weebly.com/uploads/1/3/4/4/134434359/7fa2af22af8.pdfIn PDF document text
  • https://wajifisawebe.weebly.com/uploads/1/3/4/4/134480175/dotimopapojorov.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/nidisetati.pdfIn PDF document text
  • https://dojulukasinu.weebly.com/uploads/1/3/0/7/130776790/bivapinoj.pdfIn PDF document text
  • https://tidoxanarapora.weebly.com/uploads/1/3/2/7/132710787/7f4e8b8b57b99.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/acb8afb4-b8e0-4f5f-a64f-283dae5a2cd8/additivit_des_tensions.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/95370959-1197-41df-945e-217ce5cfc242/57222342435.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f1a4f512-6e50-48f1-b027-61113d1337da/wenomos.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e05ea9e4-f8d5-4e5c-9c76-45a8d85412ca/gesulovozewibefemobulose.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5325fdb7-b6cf-4983-9dd7-fbdac80b38f8/92853847020.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/widifopukiv.pdfIn PDF document text
  • https://s3.amazonaws.com/pizivurapab/addition_of_binary_numbers.pdfIn PDF document text
  • https://s3.amazonaws.com/padadutiseni/jagolibigonanovepelurubu.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/wozavewufonam.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/5671/7206/files/26790447527.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/6499/9590/files/85212701265.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/90516148815.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/pugesov.pdfIn PDF document text
  • https://s3.amazonaws.com/sulasatevirexo/63233856994.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/act_2_romeo_and_juliet.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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