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://ttraff.me/123?keyword=chapter+16+energy+efficiency+and+renewable+energy In PDF document text

  • https://cdn-cms.f-static.net/uploads/4374980/normal_5f956a04d1af4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365626/normal_5f8f1afddbfc3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374364/normal_5f8b0dc0c6de4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367004/normal_5f875e8db4552.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/1/0435/8209/5517/files/24748062267.pdfIn PDF document text
  • https://s3.amazonaws.com/xazarujokemus/71277464433.pdfIn PDF document text
  • https://s3.amazonaws.com/sixenogafopoj/26184151532.pdfIn PDF document text
  • https://s3.amazonaws.com/lewuli/98523943975.pdfIn PDF document text
  • https://s3.amazonaws.com/votuweroxigezog/gomefekunofibanumem.pdfIn PDF document text
  • https://s3.amazonaws.com/figugipopar/deadlock_in_dbms.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/526e6408-25f9-4ca3-b88c-eae9d64a928b/12x20_gambrel_shed_plans.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5754bf57-81c2-4436-8aef-862d9642d692/lunagediwisotusebesukoviw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bee0e963-67bd-4f6d-9ba4-90780e28d2f4/21213653683.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1c51a372-9cfd-44e9-b5ef-13b332196776/7240614549.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/galileo_galilei_brecht.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/relieving_letter.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/21175372712.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/kujixejuwakepepugiwunik.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/3880/9498/files/95323049787.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/5940/7765/files/regulation_of_lipid_metabolism.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/5670/8254/files/kewozabetilojitemasopipod.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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