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://traffset.ru/aws?keyword=the+helpful+garden+montessori+material PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4375698/normal_5f8a1c8aabbee.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366055/normal_5f86ffaae4e61.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369487/normal_5f96d42a48f06.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4406777/normal_5fa86667cf485.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369781/normal_5f8e718ba94e6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365646/normal_5f8863e3b797c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373757/normal_5f8a329065514.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://supafewaseg.files.wordpress.com/2020/11/figos.pdfIn PDF document text
  • https://s3.amazonaws.com/xupimaral/31352356297.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f33f852a-6474-413a-9318-f40630a8cb18/waxesifovelelem.pdfIn PDF document text
  • https://vapijaroti.files.wordpress.com/2020/11/90950053825.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/98b36ced-c520-48f1-b591-4844cdb82792/.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e368afc5-a6e9-4ce6-92d1-5d081eb2f04e/jovaduzataj.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/043f777f-966a-4bd8-85a0-0202a2e08fd5/gopokalitoxur.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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