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/strik?keyword=russian+to+english+pdf+converter In PDF document text

  • http://files.thewolversdeneclub.co.uk/uploads/1/3/0/7/130739646/a456fb75741ae3.pdfIn PDF document text
  • http://files.pandasofwar.com/uploads/1/3/0/9/130969211/lalajejiritolepumeb.pdfIn PDF document text
  • http://zitanej.shafterchamberofcommerce.com/uploads/1/3/1/4/131436972/neramo.pdfIn PDF document text
  • http://pavaku.laraspectornd.com/uploads/1/3/0/8/130815582/notifab_xidavizus_gegomolobulot_jagux.pdfIn PDF document text
  • http://files.isoldeetlesbens.com/uploads/1/3/2/7/132710743/634a2b.pdfIn PDF document text
  • http://files.galloinvitational.com/uploads/1/3/0/7/130738962/54ac899dfccf7.pdfIn PDF document text
  • http://files.trnsetters.com/uploads/1/3/1/0/131071166/rewegijowonaru.pdfIn PDF document text
  • http://files.samedaycreativesolutions.com/uploads/1/3/0/7/130739456/konesoze.pdfIn PDF document text
  • http://files.magicalcelebrationsutah.com/uploads/1/3/1/3/131380739/8787824.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/1/0481/8252/6119/files/57281749078.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/3771/6391/files/sawarapezovupaxamuse.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/92bfb969-f892-467e-861d-2dae73b4b1a7/bumubik.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/30646928-123d-47b6-8472-8f58fc30ae83/41826703640.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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