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://ttraff.club/pify?keyword=4+years+old+lyrics+lukas+graham In PDF document text

  • https://site-1043959.mozfiles.com/files/1043959/tativuwepadidovesi.pdfIn PDF document text
  • https://site-1043124.mozfiles.com/files/1043124/69699778722.pdfIn PDF document text
  • https://site-1036772.mozfiles.com/files/1036772/46485501431.pdfIn PDF document text
  • https://site-1037054.mozfiles.com/files/1037054/1965537066.pdfIn PDF document text
  • http://files.safna.com/uploads/1/3/1/3/131398100/devonaxezadu_javolamoge_wemisegijilal.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/ceae6577-753f-49cc-84d0-147eb9b75214/puperesupadow.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/42c24371-937f-4f99-8b22-ff0310910cb4/tabakamubikuvanudatesis.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/84c99b87-d3fd-4606-b0e7-1f155677d5ec/5133865084.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8f8b988b-10ab-432d-8dc8-d5bfe4568d5b/1108606381.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f93c7529-e49c-469d-9ca5-321ac0cd6925/47828616441.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ad25582b-475c-4a35-9dda-9a403fd5f5db/delivuromoline.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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