Malicious PDF — malware analysis report

Heuristics 4

• 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.
• 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://cctraff.ru/strik?keyword=pruebas+psicometricas+resueltas In PDF document text

  • http://lurado.radiodagen.nl/uploads/1/3/2/6/132680921/pisuwexo.pdfIn PDF document text
  • http://files.jchambersconstruction.com/uploads/1/3/2/6/132695455/5989430.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/1/0476/8638/5823/files/ufa_cinema_center_alemania.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/6942/6850/files/back_brace_for_sciatica_amazon.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/7898/4614/files/i_dont_always_meme_blank.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/8566/9279/files/smash_ultimate_classic_mode_unlock_chart.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b8e07db3-2ad6-46f8-b315-d78e01dea929/32125756145.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/be7bfec5-c0c1-498e-ba73-adf82e52f111/ruzuzo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/036102ca-318b-426c-b795-b0b79166d1f1/55515295461.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/11da5f41-63c4-4373-80f1-5bf469977ace/lapusinapatilox.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5878325d-590e-42c0-a3a9-a427170a0f91/2505253920.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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