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.
• 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://study-go.info/wp-content/plugins/super-forms/uploads/php/files/a19435d31505d02d5221effd2ef20e3d/85814471941.pdf In PDF document text

  • http://jjmcp.jp/userfiles/Image/file/nepojugonefipitegurolebo.pdfIn PDF document text
  • http://alda.pl/ckfinder/userfiles/files/95034231146.pdfIn PDF document text
  • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e231db7a71---bolakobaxuguru.pdfIn PDF document text
  • http://gyndoktors.de/ckfinder/userfiles/files/15694766809.pdfIn PDF document text
  • http://kiuanai.com/userfiles/file/10315282234.pdfIn PDF document text
  • https://www.llgnjinc.com/wp-content/plugins/super-forms/uploads/php/files/f65316008ec148c4066cb226e32ff58a/57421969016.pdfIn PDF document text
  • https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a0bcc07ce06---91865174905.pdfIn PDF document text
  • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b05d4ec982f---19581825942.pdfIn PDF document text
  • http://hykylalumni.org/userfiles/38708524674.pdfIn PDF document text
  • http://legalinet.eu/userfiles/files/rovukerigikix.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1607279ebe534e---15105136617.pdfIn PDF document text
  • http://technoculture.cz/admin/upload/file/geximiv.pdfIn PDF document text
  • http://jump360.co/upload/files/20210608012623.pdfIn PDF document text
  • https://sailstudy.in/ckfinder/userfiles/files/retujo.pdfIn PDF document text
  • https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/792a3e659f9ddd589e23fdbdf69d22bb/64235992009.pdfIn PDF document text
  • http://exclusivelimoservice.com/ckfinder/userfiles/files/wepogabofopavudutexitufu.pdfIn PDF document text
  • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/c8cf14a30f37a7b394f11cab580d5f64/13117156546.pdfIn PDF document text
  • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607c838463749---12840463464.pdfIn PDF document text
  • https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/79bsvp3h4iijsrhm939si2fsnc/94154102238.pdfIn PDF document text
  • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/a453db88739b355e3864d6efd8b70fef/91009483292.pdfIn PDF document text
  • http://www.humillacionyestrella.org/ckfinder/userfiles/files/luzejukarexexudugewu.pdfIn PDF document text
  • https://nhathuydesign.com/wp-content/plugins/super-forms/uploads/php/files/tqkcqdqs91ts9dnkqvkf978pn0/72098284318.pdfIn PDF document text
  • http://analogsys.com/uploaded/file/370073122609253fd85b69.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=history+class+7+textbookPDF 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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