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/mozel?keyword=cbse+books+for+class+8+maths+pdf In PDF document text

  • http://files.pinnacleflycutter.com/uploads/1/3/0/9/130969561/bewizude_loxufakanepona_rogedozokovibot_puxal.pdfIn PDF document text
  • http://files.lymeaustralia.com/uploads/1/3/1/6/131606035/zixoredote.pdfIn PDF document text
  • http://files.cochranetotaltree.com/uploads/1/3/1/6/131607331/8197360.pdfIn PDF document text
  • https://site-1036832.mozfiles.com/files/1036832/23093636794.pdfIn PDF document text
  • http://files.terrilundquist.com/uploads/1/3/1/1/131163838/102226.pdfIn PDF document text
  • http://vewodemi.clientsviews.com/uploads/1/3/0/8/130874411/a06ebcc9d54.pdfIn PDF document text
  • http://files.broadstonefootballclub.co.uk/uploads/1/3/0/7/130740084/90209dc20dc5.pdfIn PDF document text
  • http://files.artyxan.com/uploads/1/3/0/7/130739504/wiveguwukajujox.pdfIn PDF document text
  • http://files.pacetrailseries.com/uploads/1/3/1/4/131406435/3307131.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://ebfbf0a4-36c5-4902-b04f-25f93a3a3587.filesusr.com/ugd/361f4b_db1149e399aa4028aa1956d6b8e4d682.pdf?index=trueIn PDF document text
  • https://8d33c333-2520-49e4-9997-1b968205ef40.filesusr.com/ugd/9c8fb9_4c3415349e59492fb6aa6c625dd7d6f5.pdf?index=trueIn 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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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