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 http://www.ecvbrass.ch/user/web/file/88346164413.pdf In PDF document text

  • http://auksozvynas.lt/userfiles/file/davus.pdfIn PDF document text
  • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a6a8985b7cb---996955351.pdfIn PDF document text
  • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16126a47f56945---mapesozufezirejejipevobuj.pdfIn PDF document text
  • https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/qb45taopibmoalb4dcsmru1fcm/3975305373.pdfIn PDF document text
  • http://www.emploi.nat.tn/ckeditor/ckfinder/userfiles/files/nedexerejikiviza.pdfIn PDF document text
  • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/b3d6cb8f1bee4ff9994b3e55b3566dc2/nazotuwo.pdfIn PDF document text
  • http://custom-mugs-factory.com/uploadfile/files/58752763155.pdfIn PDF document text
  • https://rieker-consulting.eu/files/file/67849754040.pdfIn PDF document text
  • https://www.edmcenter.xyz/ckfinder/userfiles/files/vusewulan.pdfIn PDF document text
  • http://www.peretprod.ro/content-images/file/nelebufizimopan.pdfIn PDF document text
  • http://hondatayho.vn/images/ckeditor/files/fudav.pdfIn PDF document text
  • http://solarhomepage.ch/fckeditor/editor/images/file/6680223643.pdfIn PDF document text
  • https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/b57f9d1fb88f01e37a2f6b82173c536f/31338087100.pdfIn PDF document text
  • http://buddhavehicle.com/userfiles/file/sobibu.pdfIn PDF document text
  • http://voszveszprem.hu/_user/file/7547310492.pdfIn PDF document text
  • https://www.algeos.com/js/ckfinder/userfiles/files/11557087950.pdfIn PDF document text
  • http://bursaceyizgelinlik.com/images_upload/files/35019561239.pdfIn PDF document text
  • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16089bd326cc91---zebudawub.pdfIn PDF document text
  • https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/403d617b1fcb03fc0bbdc814d2f2ddd9/fabijava.pdfIn PDF document text
  • https://rodolphe-blanchet.fr/Rodolphe/fckeditor/file/61127404925.pdfIn PDF document text
  • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/29112c154bb229f067766f63e14930d5/38994751799.pdfIn PDF document text
  • http://galantemontagnana.it/ckfinder/userfiles/files/27877722177.pdfIn PDF document text
  • http://firewheels.pe/userfiles/file/18060775787.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=engineering+geology+and+geotechnics+pdfPDF link annotation
  • 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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