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.
• 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.
• 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/strik?keyword=assumption+of+one+way+anova+pdf In PDF document text

  • http://jaweboja.stainedglassandwire.com/uploads/1/3/1/4/131452976/1710355.pdfIn PDF document text
  • http://files.talltalesuf.com/uploads/1/3/2/8/132815872/3f4b47.pdfIn PDF document text
  • http://judojaz.nicole-phillips.com/uploads/1/3/1/4/131437626/d79fcdf54f.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/4433/4487/files/what_do_polar_bears_eat.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/0413/9416/files/50957741354.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0494/1148/9959/files/5245900919.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4dacc6b5-0d5e-4ad2-ad55-e55b1bfb8096/bopabowi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/db6c9b96-348c-4730-89c8-528a9f6a31c1/53349961979.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/8326/2869/files/xemaje.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/6920/6435/files/wumibenadujejolipebotaj.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/9440/0423/files/edward_rutherfurd_books_ranked.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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