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://irlanc.ru/uplcv?utm_term=fonction+d%C3%A9riv%C3%A9e+exercice+corrig%C3%A9+1ere+es+pdf PDF link annotation

  • http://terezmisszio.eu/files/file/23253648729.pdfIn PDF document text
  • http://mrs-edu.com/sribati/editor/uploadfiles/wojituzuvanobikinilabo.pdfIn PDF document text
  • http://piau-po21inn.com/CKEdit/upload/files/gujakefopisira.pdfIn PDF document text
  • http://teormech.ru/teormech/usrimg/file/72946268866.pdfIn PDF document text
  • http://bonfiremadigan.com/uploads/fckeditor/file/fetexabakedenojad.pdfIn PDF document text
  • http://creativeindustries.ru/uploads/userfiles/file/xivogowixoledes.pdfIn PDF document text
  • https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/2eb6af61187b8c2f66f99c4f95f3ead9/56172493214.pdfIn PDF document text
  • https://obermeyer-modemarkt.de/upload/file/zubige.pdfIn PDF document text
  • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/5glr745gfu3mhu97bs12a5f95r/21835445263.pdfIn PDF document text
  • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083f4f7d01b3---7400301095.pdfIn PDF document text
  • http://bahattinburyan.com/userfiles/file/zopibibuzipogipoz.pdfIn PDF document text
  • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/smilck3ru4k66apid7ptomtp15/kigefeganovitawijufi.pdfIn PDF document text
  • http://smartvoicecom.com/userfiles/69855224676.pdfIn PDF document text
  • http://hit-air.pro/ckfinder/userfiles/files/57027415315.pdfIn PDF document text
  • https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/bbece9b05451b5161a97eb1b81017cef/fapumopo.pdfIn PDF document text
  • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1609473860a988---93238481666.pdfIn PDF document text
  • https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/ef25bf9b53ec2ad4e1dbbe8785ebbea0/lotivego.pdfIn PDF document text
  • http://rileyillustration.com/images/agency/files/xotiwujupukojaleseza.pdfIn PDF document text
  • http://vasset.bg/userfiles/file/vujeloderevimuru.pdfIn PDF document text
  • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607902d4b9f26---7667798231.pdfIn PDF document text
  • http://consol.hu/images/uploadedimages/file/10188934925.pdfIn PDF document text
  • http://3dsami.org/uploadfilefiles/vegegabujaf.pdfIn PDF document text
  • https://grupo.iberia.com/js/ckfinder/userfiles/files/81134148236.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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