Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://cructi.ru/uplcv?utm_term=reading+comprehension+level+1+pdf PDF link annotation

  • http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160744f8119fd2---romufasebigoluzalowasesa.pdfIn PDF document text
  • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16079ba89b9f4c---zoperakosefuzazulezule.pdfIn PDF document text
  • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/bd83e28757b2d46c35ed574f206dd9f0/xusininiwebope.pdfIn PDF document text
  • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/im1jjotp5albo5paa9rbut2h97/82787314281.pdfIn PDF document text
  • http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607c254bb1f0d---78339580400.pdfIn PDF document text
  • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607638a534b3a---rogelisixotamu.pdfIn PDF document text
  • http://africanhairbraidingsalon.com/userfiles/file/35331274313.pdfIn PDF document text
  • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/np9na687i69rmeipuurn3bupk3/xufudinalifapabokojupi.pdfIn PDF document text
  • https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607bff6c8fa8a---vuforutujokevixemo.pdfIn PDF document text
  • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bd29dbc4617---poxunijivelip.pdfIn PDF document text
  • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608841a022d21---27258352185.pdfIn PDF document text
  • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7ea8892ec8---kulivut.pdfIn PDF document text
  • http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16089f0048b399---48680058238.pdfIn PDF document text
  • https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b11f6a1875a---5631211277.pdfIn PDF document text
  • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd3f79662b0.pdfIn PDF document text
  • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b18649239ba---10337456021.pdfIn PDF document text
  • http://esoftland.com/userfiles/file/31249515186.pdfIn PDF document text
  • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160bac998054bd---22804328513.pdfIn PDF document text
  • https://vestol.bg/files/file/tepefixekebovoximigubar.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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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