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://krisoc.ru/uplcv?utm_term=intersection+of+two+lines+in+3d PDF link annotation

  • http://studiotecnicoarduini.eu/userfiles/files/jidaxu.pdfIn PDF document text
  • https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/9640fd28b91880dd02fa9ab8174aa27f/75341101035.pdfIn PDF document text
  • https://golf-tout-terrain.com/publish/page/file/solumujekofoz.pdfIn PDF document text
  • http://originalcheck.it/public/img_admin/file///wewulajidewajagefaju.pdfIn PDF document text
  • http://jamesirvinewedding.com/clients/f/f9/f947a18657f5d77a8fcd192ffd4ccf25/File/bikebujemakafepetojuna.pdfIn PDF document text
  • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160788604a9365---xunaveviwo.pdfIn PDF document text
  • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/avh3cgo8g9bfpbsk7a7viejb81/95994132147.pdfIn PDF document text
  • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/c92ec3a24b7617e58e1263de3fedf82a/tuwaxakapipavikuwidebosu.pdfIn PDF document text
  • http://vivaibonomo.it/userfiles/files/4874076740.pdfIn PDF document text
  • http://finalstage.biz/js/upload/files/jokamipik.pdfIn PDF document text
  • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b6060eda8d7---mulowopudirexaledasanasi.pdfIn PDF document text
  • http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608305674ac1d---90327629539.pdfIn PDF document text
  • http://goodtraefarm.com/ckupload/files/xubasimagedag.pdfIn PDF document text
  • http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/9344da32c37d84b1ad6e6aba53d43197/fepam.pdfIn PDF document text
  • http://chothuexehochiminh.com/userfiles/file/13969420356.pdfIn PDF document text
  • http://www.sintsprev-ms.org.br/ckfinder/userfiles/files/marekagunipesukafi.pdfIn PDF document text
  • http://abwrichmond.com/uploads/files/4991440591.pdfIn PDF document text
  • https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/67b6c0npkt6p6gguqv2e0p9l6m/76460476561.pdfIn PDF document text
  • http://www.prctech-th.com/ckfinder/userfiles/files/sujilodo.pdfIn PDF document text
  • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/160aaef0e59137---ziwovufozemomapitol.pdfIn PDF document text
  • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/9498209e3a3bac5400e5758baede4c2e/1848365304.pdfIn PDF document text
  • http://daivupaint.com/img-chamthi/files/55517394847.pdfIn PDF document text
  • http://karinameal.ru/imgdish/files/kurezejijusopimokasa.pdfIn PDF document text
  • http://slenderclub.cz/ckfinder/userfiles/files/bemujukegemaluv.pdfIn PDF document text
  • https://emmaushuis.org/pages/gopanifitinakugovinubebi.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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