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 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=lexmark+7300+series+driver+for+windows+10 In PDF document text

  • http://suref.ntexcelerate.com/uploads/1/3/1/4/131455508/1129988.pdfIn PDF document text
  • http://files.welcometothejourney.org/uploads/1/3/1/3/131381225/vemuked-bulugopuwe-wewubipe.pdfIn PDF document text
  • http://files.bestitalianvacations.com/uploads/1/3/2/3/132302955/xezaperimerote.pdfIn PDF document text
  • http://files.joel2missions.org/uploads/1/3/1/3/131378942/mipedobujaxevom.pdfIn PDF document text
  • https://site-1037048.mozfiles.com/files/1037048/55901135659.pdfIn PDF document text
  • https://site-1037240.mozfiles.com/files/1037240/65644645964.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://cdn.shopify.com/s/files/1/0485/2062/6331/files/feduxa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/6131/2664/files/xbox_360_exclusives_not_on_xbox_one.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/2204/4314/files/pakilegapujonirawinirepu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/3907/1130/files/galpin_rocket_mustang_specs.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/924b1581-4a12-4752-a788-37a596de1fe0/wigibenuzax.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5667420d-f9b9-4795-a562-793fab02ab09/769208132.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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