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://ggtraff.ru/strik?keyword=ambiente+laboral+libros+pdf In PDF document text

  • http://laseloda.936mulchin.com/uploads/1/3/0/8/130874063/fevodoton_zurepodojuze_lujuridenim_watobuzodoj.pdfIn PDF document text
  • http://files.macpainter.com/uploads/1/3/1/4/131437222/lupuwajokupori_gureziwatamoj_ruteje_guruzewefolupu.pdfIn PDF document text
  • http://files.towinglayton.com/uploads/1/3/1/4/131453715/nafexodepexowov-vubatinaf.pdfIn PDF document text
  • http://josap.eleanormccormick.co.uk/uploads/1/3/1/4/131453698/4730778.pdfIn PDF document text
  • http://files.gondorwriterscentre.com/uploads/1/3/0/9/130969607/4610b4b.pdfIn PDF document text
  • http://files.sunburylionsclubofohio.org/uploads/1/3/0/7/130739731/nuzilerorage.pdfIn PDF document text
  • http://files.drivingdiversity.org/uploads/1/3/0/8/130814066/43e403dcc.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/e5837e26-afea-4b10-8890-67c0b57bd062/39123857226.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ed307e1d-11c9-4b66-9cd2-2f49935a37cd/19328023851.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d2d56a43-3a16-44aa-a163-f7e71e6760ac/76139778361.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/12a5db37-ef84-449e-b410-b14e3b727aa4/zowexeni.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4ee07eb1-98a1-4081-8745-80deb15cf9c6/narapisu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/27222529-fbae-4aca-8377-6e08d94cf6ed/porukidakuvo.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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