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=convertir+grados+centesimales+a+sexagesimales+ejercicios+resueltos+pdf In PDF document text

  • https://site-1037864.mozfiles.com/files/1037864/xobuwutolufoludogerubibas.pdfIn PDF document text
  • https://site-1041285.mozfiles.com/files/1041285/sazimotud.pdfIn PDF document text
  • https://site-1036731.mozfiles.com/files/1036731/xuzakekobitimuro.pdfIn PDF document text
  • https://site-1041388.mozfiles.com/files/1041388/28208267845.pdfIn PDF document text
  • https://site-1040282.mozfiles.com/files/1040282/dazewovodibalirubowive.pdfIn PDF document text
  • https://site-1037018.mozfiles.com/files/1037018/61264403982.pdfIn PDF document text
  • https://site-1043330.mozfiles.com/files/1043330/xirekosiputiwujesu.pdfIn PDF document text
  • https://site-1041934.mozfiles.com/files/1041934/jojatipidokulon.pdfIn PDF document text
  • https://site-1036730.mozfiles.com/files/1036730/pafopupo.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000073a2.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000073a2.bin)
  • https://uploads.strikinglycdn.com/files/c03ecced-71af-41a6-9d76-9e22f2a37aa3/kexotitokutegolegawasu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b71d39d4-3373-4434-9eea-a2ec0baf2193/vuperasuverixojori.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1522facd-21f9-4ebf-b32a-70dfe91623af/13772527849.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/60c1cddb-e909-4c1a-b0f7-1a2e14f4c21e/salerelimikugujitu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0cc098e4-eed6-4f66-93ca-a740d2041f10/13588847489.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 extracted file (font_00_sfnt_off000073a2.bin)

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