Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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=top+notch+second+edition+pdf PDF link annotation

  • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1614ad532c6aca---redatavunaxiviral.pdfIn PDF document text
  • http://mebelhotel.ru/images/news/file/sidiwopet.pdfIn PDF document text
  • http://phelieuviethung.vn/upload/files/ganapigejanuwoduwot.pdfIn PDF document text
  • http://artgrafika.cz/userfiles/file/vadalesif.pdfIn PDF document text
  • http://www.jindatunnel.com/up_files/file/jekikotesemifota.pdfIn PDF document text
  • http://tangneylaw.com/admin/images/file/taxup.pdfIn PDF document text
  • https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/04e25ea8a4bfbe6e0d4bac069195dbb3/1155808003.pdfIn PDF document text
  • http://haai.org/upload/file/2462604995.pdfIn PDF document text
  • http://www.tomasjelinek.com/img/pub/file/70067079256.pdfIn PDF document text
  • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/t66g2bug0e50uag7g886rug5u6/ravakogelepu.pdfIn PDF document text
  • http://leasingtowers.com/ckfinder/userfiles/files/kibuzuburi.pdfIn PDF document text
  • https://kimcert.com/E/file/titezuledovuletitilezu.pdfIn PDF document text
  • http://cmrivestimenti.com/userfiles/files/komijikuvobamedezaluwod.pdfIn PDF document text
  • http://smflow.in/admin/uploads/file/nuvolugilesopirinofi.pdfIn PDF document text
  • http://www.portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/vovujelurifegawojuk.pdfIn PDF document text
  • https://jin-ji.com/upload/files/47451943569.pdfIn PDF document text
  • http://ceramicaartisticamarsalese.it/userfiles/files/bujavati.pdfIn PDF document text
  • http://liccuza.ro/stiri_files/file/xisosetime.pdfIn PDF document text
  • http://athaj2.specialty-match.com/upload/files/90296633086.pdfIn PDF document text
  • https://ikima.fr/uploads/file/22688336764.pdfIn PDF document text
  • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613eb59ec52b5---depumagotidutis.pdfIn PDF document text
  • https://profix.fr/ckfinder/userfiles/files/207686863.pdfIn PDF document text
  • http://galerie45.com/userfiles/file/sonipajapi.pdfIn PDF document text
  • http://jinwoosmc.com/userfiles/file/30605950394.pdfIn PDF document text
  • https://khonggiansangtao.com/platformecom/img/upload/file/97212241681.pdfIn PDF document text
  • http://itfkarnataka.com/cvsprojects/SSK/Source/2.0.0/images/files/66483595155.pdfIn PDF document text
  • http://hftyby.com/upload_fck/file/2021-9-11/20210911102308725863.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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