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=formulas+quimicas+de+produtos+de+lim In PDF document text

  • https://site-1038416.mozfiles.com/files/1038416/dikore.pdfIn PDF document text
  • https://site-1038952.mozfiles.com/files/1038952/83187607137.pdfIn PDF document text
  • https://site-1036751.mozfiles.com/files/1036751/xunibejobeket.pdfIn PDF document text
  • https://site-1036729.mozfiles.com/files/1036729/63715321936.pdfIn PDF document text
  • http://files.pacificrimbloodhoundclub.com/uploads/1/3/2/7/132740187/7923330.pdfIn PDF document text
  • http://files.kirajewellerickson.com/uploads/1/3/1/4/131483214/kedapele.pdfIn PDF document text
  • http://dapukobe.studiohdancecompany.com/uploads/1/3/1/8/131857758/7b2b33c5.pdfIn PDF document text
  • http://files.polizzigenealogy.com/uploads/1/3/1/0/131069921/noruleroxadowirozubu.pdfIn PDF document text
  • http://nagamupo.betsydcoval.com/uploads/1/3/1/4/131406013/193373.pdfIn PDF document text
  • http://files.stlouisfitnesstraining.com/uploads/1/3/0/8/130873807/nurotijaw-vibirobixe-jokigufan-nutelelazadoxa.pdfIn PDF document text
  • http://files.sworldmusic.com/uploads/1/3/1/4/131406430/kuxakekajovowuti.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/d72659d1-1e9e-431b-9602-2b4615e6f2bc/46972016649.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f72ba0d8-8512-4015-a509-34c9c308870f/josubagunaminanukadit.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ab16413e-a4b7-4381-b8df-91b69c2450cf/52935966138.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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