Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://infrive.ru/uplcv?utm_term=vidmate+old+version+2.5+free+download+apk PDF link annotation

  • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131d5a49c683---sokol.pdfIn PDF document text
  • http://tupnate.com/ckfinder/userfiles/files/79805675260.pdfIn PDF document text
  • http://banglenhospital.com/UserFiles/File/vekomov.pdfIn PDF document text
  • http://dspec-car.com/js/upload/files/8022978359.pdfIn PDF document text
  • http://yourhealthyanswer.com/ckfinder/userfiles/files/lijiz.pdfIn PDF document text
  • https://marljivo.hr/UserFiles/files/lusewaxokusekito.pdfIn PDF document text
  • https://home-consult.lu/userfiles/files/65194641148.pdfIn PDF document text
  • http://nhasachthunam.com/upload/files/xofamasosofamikamuda.pdfIn PDF document text
  • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148f111ebd94---fujuxuwuzofadimaxidiforek.pdfIn PDF document text
  • http://asia-test.informacittadino.net/media/files/5249989938.pdfIn PDF document text
  • https://kaparatt.com/images/File/84407128230.pdfIn PDF document text
  • http://jrmhandling.nl/upload/file/jorexafumukomasudag.pdfIn PDF document text
  • http://radtel-sport.pl/userfiles/file/84457495516.pdfIn PDF document text
  • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/95fa00cd4f83e471a0e97fe30cc0784c/wenaredazepejurok.pdfIn PDF document text
  • http://adamlegal.com/userfiles/file/89654754619.pdfIn PDF document text
  • https://ensegun2.com/ckfinder/userfiles/files/2608620519.pdfIn PDF document text
  • https://shivajigrihnirman.com/singhania/downloads/file/91492954318.pdfIn PDF document text
  • http://weiddy.com/uploads/files/202109151750094227.pdfIn PDF document text
  • http://www.saveurspoitoucharentes.com/admin/ckfinder/userfiles/files/12872573658.pdfIn PDF document text
  • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/s11dbjv8u6mcei184rjah76587/mufowaxegus.pdfIn PDF document text
  • https://pepinieramontana.ro/ckfinder/userfiles/files/2185902761.pdfIn PDF document text
  • https://www.naabelectric.com/userfiles/files/ribevimewu.pdfIn PDF document text
  • http://chochosanencino.com/uploads/files/86375115303.pdfIn PDF document text
  • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131362f57ed2---48268890160.pdfIn PDF document text
  • https://lux-ride.com/home/u4-6pzgszajsb5u/www/lux-ride.com/public_html/ckeditortest_WORKING/ckfinder/userfiles/files/25184326415.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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