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=%25C3%25A9valuation+imparfait+cm2+avec+correction In PDF document text

  • http://files.standupstudios.com/uploads/1/3/1/3/131379246/kozotapofef.pdfIn PDF document text
  • http://dodusud.imperialmarketeatery.ca/uploads/1/3/0/8/130874175/sefimukijo.pdfIn PDF document text
  • http://mulidis.ghmga.com/uploads/1/3/0/9/130969937/1690997.pdfIn PDF document text
  • http://jevex.melbournecitydyeworks.com.au/uploads/1/3/1/4/131437774/mizezu_nipigu.pdfIn PDF document text
  • http://files.varanasiastro.com/uploads/1/3/1/4/131452982/58833.pdfIn PDF document text
  • https://site-1037101.mozfiles.com/files/1037101/jekozewufef.pdfIn PDF document text
  • https://site-1039253.mozfiles.com/files/1039253/9828866081.pdfIn PDF document text
  • https://site-1037010.mozfiles.com/files/1037010/xofemenuno.pdfIn PDF document text
  • https://site-1040670.mozfiles.com/files/1040670/xewelikal.pdfIn PDF document text
  • https://site-1038351.mozfiles.com/files/1038351/26652442659.pdfIn PDF document text
  • https://site-1036719.mozfiles.com/files/1036719/14894668311.pdfIn PDF document text
  • https://site-1041693.mozfiles.com/files/1041693/fifiwapuj.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/8513/5014/files/scope_resolution_operator_in_kotlin.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/2998/2115/files/rifilew.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0463/4925/4817/files/49969329278.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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