Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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.
• 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
• 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://gettraff.ru/wb?keyword=20%20seconds%20to%20die%202%20unblocked In PDF document text

  • https://cdn-cms.f-static.net/uploads/4423757/normal_5fa199b028790.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368226/normal_5f9b8c082c50e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369920/normal_5f9acbb18ee8d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4409403/normal_5f98b60aaba33.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387562/normal_5f9a6fd36e6a4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367621/normal_5f875b46d8993.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374953/normal_5f8957698ca77.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381980/normal_5f8faf081da73.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380228/normal_5fa0ed1dce2a2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384459/normal_5f91e15eb306d.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/8e4ff3c8-71f0-418b-aa54-c2a33baafb01/zipexut.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f93d1216-1de7-4c90-a381-ec1ef0770c72/73912522408.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/95957544531.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/83963977522.pdfIn PDF document text
  • https://s3.amazonaws.com/tobobowu/accelerated_reading_answers.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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