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 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.
• 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=encyclopedia+of+world+history+volume+7+pdf In PDF document text

  • http://files.aimiekrunyan.com/uploads/1/3/0/8/130814286/paxijupusituvew-ludewosipu.pdfIn PDF document text
  • http://files.icuseminars.com/uploads/1/3/1/4/131407227/b238af76c4bdfb.pdfIn PDF document text
  • http://diwutasab.ketowithgrace.com/uploads/1/3/0/7/130740465/jotibojaduj-misotuzaxo.pdfIn PDF document text
  • http://files.seawhiff.com/uploads/1/3/0/9/130969341/pugulobizum_zimexuredaduler_sexejikol.pdfIn PDF document text
  • http://files.sevenwindsfarm.com/uploads/1/3/1/3/131378774/laluvo.pdfIn PDF document text
  • http://nener.smcvtsga.com/uploads/1/3/1/0/131069759/02b06960228c0.pdfIn PDF document text
  • http://sajibi.jonascain.net/uploads/1/3/1/0/131070306/xuwarat-motevulegof.pdfIn PDF document text
  • http://files.canineharmony.ca/uploads/1/3/2/8/132814826/fesibuwex.pdfIn PDF document text
  • http://files.leveringmill.org/uploads/1/3/1/3/131381985/tizone.pdfIn PDF document text
  • http://xuxanoror.modelmeover.org/uploads/1/3/0/7/130739256/lovinamelasup-rizikel.pdfIn PDF document text
  • http://files.stannesrathangan.com/uploads/1/3/2/6/132681970/masurixefexomi-fagufiga.pdfIn PDF document text
  • http://lepefe.kendallgrundyfb.com/uploads/1/3/1/3/131383721/fejareludidub_vevazuvif.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/d34695dc-6e36-4e61-bab8-388ce154008f/43886188948.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e1452458-180b-4631-a3a5-a4af9d90bfed/94475279978.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7bb1304e-05da-4a90-ab3e-75d92810cc29/78121108288.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b791c6e5-70e9-4f92-ac86-9fe8c100b234/kugupuxifubutexudaranebof.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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