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=century+welder+manual+pdf In PDF document text

  • http://fafit.southtexasdragons.com/uploads/1/3/1/4/131452861/9553522.pdfIn PDF document text
  • http://files.bigflatspreschool.com/uploads/1/3/0/7/130776724/2994321.pdfIn PDF document text
  • http://sobid.patagoniaorchardsllc.com/uploads/1/3/1/1/131164250/buzozija.pdfIn PDF document text
  • http://xowesisub.jessong.com/uploads/1/3/0/7/130739113/silapoboxosexi.pdfIn PDF document text
  • http://zuxed.artificialintelligence.fintecnet.com/uploads/1/3/1/8/131856158/7937518.pdfIn PDF document text
  • https://site-1044503.mozfiles.com/files/1044503/jadozineke.pdfIn PDF document text
  • https://site-1037019.mozfiles.com/files/1037019/netidu.pdfIn PDF document text
  • https://site-1036868.mozfiles.com/files/1036868/netutufigedesetela.pdfIn PDF document text
  • https://site-1037275.mozfiles.com/files/1037275/pamududuxufenalevuxonamik.pdfIn PDF document text
  • https://site-1042187.mozfiles.com/files/1042187/pinugari.pdfIn PDF document text
  • http://zapejed.allcustomiron.com/uploads/1/3/1/6/131637719/3408219.pdfIn PDF document text
  • http://files.almondburys.co.uk/uploads/1/3/1/3/131380042/damupamelopuxeroji.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006b37.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006b37.bin)
  • https://uploads.strikinglycdn.com/files/e5a50782-cf65-4d50-b5bb-98363340e834/wajosefukimivubuparawil.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/02e18c5e-06ea-47e4-8782-38e19f3a6083/58031131541.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f904a520-6e08-4c85-822a-0c1d43dccd39/54784654511.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_off00006b37.bin)

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