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.
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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://gettraff.ru/123?keyword=cambridge+primary+review+pdf In PDF document text

  • https://site-1036764.mozfiles.com/files/1036764/28167111194.pdfIn PDF document text
  • https://site-1037120.mozfiles.com/files/1037120/99674563036.pdfIn PDF document text
  • https://site-1041765.mozfiles.com/files/1041765/dopotuwulazulefamoven.pdfIn PDF document text
  • https://xebikazogede.weebly.com/uploads/1/3/2/7/132740990/vexilaxowiro.pdfIn PDF document text
  • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/d96ddb407408.pdfIn PDF document text
  • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/jekowis_fuvonobux.pdfIn PDF document text
  • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/2122744.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365551/normal_5f870e0f37cc0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367283/normal_5f874b54b84d2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365635/normal_5f87563dd9846.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366348/normal_5f874632d155f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365634/normal_5f8730e55dba1.pdfIn PDF document text
  • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/daxurugut.pdfIn PDF document text
  • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/4106527.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/79d26a20-eca7-4403-a9a8-460267bbd96b/91360174666.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d0260643-df05-45fe-819d-e9368e41b461/vumefedizirore.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/686739ca-37d8-4a2c-b292-0384dc1020c0/90106120617.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/7481/7693/files/waunakee_high_school_schedule.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/4600/2584/files/diderutuzotokep.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0494/7522/3719/files/aci_301_standards.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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