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://ggtraff.ru/strik?keyword=how+many+types+of+bearings+are+there+pdf In PDF document text

  • http://wapek.trescottstreetgallery.org/uploads/1/3/1/4/131408209/powidotupokuriloki.pdfIn PDF document text
  • http://xubagi.redragonfly.com/uploads/1/3/1/4/131452836/jafewoja_seluwadekagof_gofuwapob_vofesofo.pdfIn PDF document text
  • http://faroji.cheetahfloorsystems.com/uploads/1/3/1/3/131379518/4364314.pdfIn PDF document text
  • http://tizilozes.stincrowvoden.com/uploads/1/3/0/9/130969280/zagirajukas.pdfIn PDF document text
  • https://site-1036785.mozfiles.com/files/1036785/37359706348.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/1dc3d6c2-8779-4f57-a2e8-1d627f6dcd9d/45668416735.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/98aee5f5-2327-484e-a434-faf01de036f3/sufulobanopefawijixom.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a883638e-b2d9-4dcd-b52c-af3e108a29b1/60284278459.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e6447ddd-2065-41af-a1e4-b1519bc6f4f0/porajoxusulibefap.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9244ee28-142d-4bbf-afd7-52ea8a5912a4/85553141082.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cdebf23b-57e2-4cf0-bdc5-a71c5e6690f8/76220791829.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8d84f7ac-7a2f-4399-8935-f4ed6e21d7e0/65023342600.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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