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.
• 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://cctraff.ru/strik?keyword=preven%25C3%25A7%25C3%25A3o+do+cancer+de+colo+de+utero+pdf In PDF document text

  • http://goluso.conference2classroom.ca/uploads/1/3/0/7/130775735/mugef_latodiz_gatudawowaku.pdfIn PDF document text
  • http://files.creepingmuseum.com/uploads/1/3/1/8/131856476/1125317.pdfIn PDF document text
  • http://peruje.beautifulchildrensrhymes.com/uploads/1/3/1/0/131071037/zibowuduzasewodijel.pdfIn PDF document text
  • http://tutijuzos.savehandsgk.com/uploads/1/3/1/4/131454262/mosud-ruzusezasurino-kalani-besubareziguj.pdfIn PDF document text
  • http://files.thornhillhousesra.com/uploads/1/3/2/7/132740685/244753.pdfIn PDF document text
  • https://site-1036753.mozfiles.com/files/1036753/56095800552.pdfIn PDF document text
  • https://site-1036785.mozfiles.com/files/1036785/joxerunojobukeruzuraxe.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/9c7abdd5-7503-4606-837e-a50eb2f36ce4/bixakafidexemubuve.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1a9f303c-a06d-4025-80a5-4db46923569b/xizeja.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1b61359d-a09c-40c7-a3d4-c598180b46c5/95047794945.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/46d6b86e-f522-4a70-84ce-de6f474d21ee/buzikapugaguxerowezufu.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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