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://ggtraff.ru/123?keyword=introvert+and+extrovert+questionnaire+pdf In PDF document text

  • https://site-1040876.mozfiles.com/files/1040876/67975314628.pdfIn PDF document text
  • https://site-1043790.mozfiles.com/files/1043790/the_playground_of_europe.pdfIn PDF document text
  • https://site-1040178.mozfiles.com/files/1040178/betty_diagnose_staffel_4_episodenguide.pdfIn PDF document text
  • https://site-1042779.mozfiles.com/files/1042779/zuxetekok.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369333/normal_5f88a6fe67a4a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366316/normal_5f8889f257210.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366040/normal_5f873451a3242.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371010/normal_5f883107508e8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366335/normal_5f886002d8f68.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366009/normal_5f86f4eb46b0a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366354/normal_5f871bb9a5cd4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366357/normal_5f87248eaf189.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/1/0440/7004/3813/files/zone_description_meaning.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/9186/8310/files/selefevexujorus.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/5221/1099/files/formulas_de_seno_coseno_y_tangente.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/1570/3197/files/clip_on_night_vision_scope_attachment.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ebbd4a71-73ed-4b91-8f59-56389097ac9a/lupixijimefusezesakixu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5a44b413-f6a5-4a4b-ab31-b66aa3e6c771/kujurubebukaremug.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b209a424-86f8-471f-a51f-44e98dbac6b1/61918492128.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0458/2447/5299/files/baginezijebowatebedur.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/7852/4832/files/the_door_store.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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