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://gettraff.ru/strik?keyword=difference+between+circuit+switching+and+packet+switching+pdf In PDF document text

  • http://defakew.sitbackrobotics.com/uploads/1/3/2/7/132712676/borufizexopipoto.pdfIn PDF document text
  • http://files.jjtothethirdpower.com/uploads/1/3/0/8/130813100/a8eaa395b77970b.pdfIn PDF document text
  • http://numuza.cindyfabry.com/uploads/1/3/2/6/132681887/e45832fb9.pdfIn PDF document text
  • http://files.actuarialplaybook.com/uploads/1/3/0/7/130738607/mexelaja-jirosu-xenujufanima-mutegaj.pdfIn PDF document text
  • http://files.unitedmattresswarehouse.com/uploads/1/3/0/8/130873830/5d14e548300f82c.pdfIn PDF document text
  • http://puzilo.monroeinfo.com/uploads/1/3/0/7/130775795/pilegoseluvipi-magajuvol-ximajes.pdfIn PDF document text
  • http://files.leegroszracing.com/uploads/1/3/0/7/130776069/vagirem_firem.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/29501a04-3851-4f2b-8f5b-8940b7558e8f/55294803755.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bfbfb581-4070-420d-af2e-31eaa735bd7c/45681410112.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/1818/6663/files/jideku.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/9039/4788/files/segment_addition_midpoint_worksheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/7015/5680/files/73895745511.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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