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/wb?keyword=two%20dimensional%20motion%20and%20vectors%20problem%20b In PDF document text

  • https://cdn-cms.f-static.net/uploads/4425491/normal_5fa6f0eee8a3c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367922/normal_5f8a563958858.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383137/normal_5f9521a242c26.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366630/normal_5f95d9f09ea67.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369631/normal_5f8d35cb23a25.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408333/normal_5f98543985017.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://bukabaw.files.wordpress.com/2020/11/pre_intermediate_speaking_activities.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/auditoria_de_sistemas_de_informao_joshua.pdfIn PDF document text
  • https://s3.amazonaws.com/wexukufedepim/basic_excel_file.pdfIn PDF document text
  • https://bolawudadek.files.wordpress.com/2020/11/34477382295.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/saleropuvogirule.pdfIn PDF document text
  • https://penorabod.files.wordpress.com/2020/11/83454956010.pdfIn PDF document text
  • https://s3.amazonaws.com/jenisozazewubo/bafuzafifofaxeva.pdfIn PDF document text
  • https://wejogude.files.wordpress.com/2020/11/niwasegini.pdfIn PDF document text
  • https://s3.amazonaws.com/wemazun/homedepot_my_apron.com.pdfIn PDF document text
  • https://s3.amazonaws.com/sikuva/bsava_textbook_of_veterinary_nursing_5th_edition.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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