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/aws?keyword=sonora+middle+school In PDF document text

  • https://cdn-cms.f-static.net/uploads/4373757/normal_5f9e50b9e35de.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389582/normal_5f90500be3386.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366952/normal_5f9129f5a63b0.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/fapaga/definition_of_business_process_management.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/070f3520-2dd8-438d-8c8d-a1bad1a59f7a/24824151048.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a05a5c70-2648-471d-9223-7e39aa7b8b32/wabunemoluza.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/385f2ebe-c9f2-4f55-ba16-ed5d68260869/58395833544.pdfIn PDF document text
  • https://s3.amazonaws.com/muwemivumazulax/wawugepusowuxojokisuzer.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bdc98524-0c50-4710-aa2b-11ae0b6e02b8/36709410196.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2b7eec5c-b416-4671-8ea1-3d7424f05adc/12530083442.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3da11815-b2f6-44fe-a019-6f7a5246de45/30709875764.pdfIn PDF document text
  • https://s3.amazonaws.com/ginutu/problem_solving_with_algorithms_and_data_structures_using_python.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/508a3d98-d30a-43e3-9e60-7afe4bb2537b/no_soy_de_aqui_ni_soy_de_alla_rap.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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