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://cctraff.ru/123?keyword=ap+bio+lab+6+cellular+respiration+answers In PDF document text

  • https://cdn-cms.f-static.net/uploads/4383692/normal_5f8e2fd3d41ab.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366004/normal_5f86f9f350620.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391649/normal_5f91bbceaa4ca.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385012/normal_5f90364b2f828.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381104/normal_5f93461934822.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369306/normal_5f89b399381cb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370985/normal_5f8d14251abc2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366952/normal_5f8b112b23bcc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4405420/normal_5f923a864b451.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369640/normal_5f8b21c013089.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372719/normal_5f8936f641ac5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377902/normal_5f98e26b58e37.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/1/0462/3876/1109/files/22258699480.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/6656/2966/files/infix_editor_pro_7.4.2.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/4155/3046/files/87391852248.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/2913/6028/files/sepexuvifalowija.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/83f74626-9a6e-4f55-a13d-5198eec48646/83841779532.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/28887f59-0e7b-4b75-b7e4-98b02eff2cef/busunes.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/4449/4760/files/la_historia_de_la_iglesia_primitiva_cristiana.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/5272/7972/files/55781182280.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/6542/4025/files/5-9_puzzle_complex_cross_numbers_answer_key.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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