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://traffking.ru/123?keyword=algebra+1+common+core+january+2015 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369501/normal_5f969c1a8e6e7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380682/normal_5f9672527a1a3.pdfIn PDF document text
  • https://karezolakep.weebly.com/uploads/1/3/1/3/131398125/d8c9453aec8a8f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370299/normal_5f893849db234.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/52e49571-3d38-4203-9c9f-13e0fdb82168/mizutapebe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cbea80c8-293c-4bc3-9d94-aacad296d981/51444819320.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/43f604bc-e4e7-4714-b858-8a2f12d9a30d/sitirinazilupiwevanupo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a20d5536-c439-4290-8538-a14f9a6d2ac6/como_comentar_un_climograma_1o_eso.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/8545/4750/files/madagascar_toys_smyths.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a0b10931-5b19-41d0-a96b-7c80aa63cfc7/96901525604.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/feb49d16-dfd3-45cb-84d4-276fa67eb9ae/watinasagu.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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