Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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=linear+algebra+differential+equations+peterson+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4393791/normal_5f960d0543d32.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374963/normal_5f8ea476a8776.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372361/normal_5f89fc6af3c32.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366367/normal_5f8717fd52117.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370066/normal_5f91285dc54a4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368748/normal_5f8a8f2cc6a35.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374703/normal_5f8a02074be59.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378607/normal_5f8ab92ed566d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370057/normal_5f87ffa13fc74.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378164/normal_5f9324c286812.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390069/normal_5f93ac2cbe9a1.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/wupiwupiwot/5855937196.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/embryology_textbook_free.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/84695862244.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/karalowodoj.pdfIn PDF document text
  • https://s3.amazonaws.com/bisegilupuf/reasons_for_colonisation_of_zimbabwe.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/5774/8897/files/robert_c_johnson_md_obituary.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/2854/7237/files/cancer_de_ovario.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/0925/3791/files/final_fantasy_12_walkthrough_book.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9176/4414/files/u.s._army_combatives_manual.pdfIn PDF document text
  • https://s3.amazonaws.com/zedudo/vehicle_tracking_system_project_report.pdfIn PDF document text
  • https://s3.amazonaws.com/vonuxagupeduze/guia_turismo_bruselas.pdfIn PDF document text
  • https://s3.amazonaws.com/garorowa/kejebu.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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