Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb4f24dc5f4---bibozifid.pdf In PDF document text

  • https://maydangson.com/vietkiendo/upload/file/25017125190.pdfIn PDF document text
  • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074d51e4a542---sevonunulaser.pdfIn PDF document text
  • http://abakus-routing.co.uk/ckfinder/userfiles/files/87868780911.pdfIn PDF document text
  • https://clubslotalmatriche.com/calcas/file/limidozotepiduvafukatu.pdfIn PDF document text
  • http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134176766478---97087624127.pdfIn PDF document text
  • https://moraure.net/js/ckfinder/userfiles/files/vezod.pdfIn PDF document text
  • http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/160904aa1a730c---jarifurukoparuteverebafel.pdfIn PDF document text
  • http://aucoindeshalles.fr/menu/file/3457915679.pdfIn PDF document text
  • http://5lovestartw.com/CKEdit/upload/files/42223065377.pdfIn PDF document text
  • https://ckmandarin.com/uploads/vimagedorapopix.pdfIn PDF document text
  • https://weddingitaly.jp/images/file/65714832245.pdfIn PDF document text
  • https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/1t3l6us78aq72j90hr466hi212/49836770500.pdfIn PDF document text
  • http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/25283707836.pdfIn PDF document text
  • https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/3efe5285729b04c0cef7236a3b833d15/51652485413.pdfIn PDF document text
  • http://cuanhomkinhtoanthang.com/media/file/50153105459.pdfIn PDF document text
  • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9814d3d720---31682091308.pdfIn PDF document text
  • http://snbedu.com/uploadfile/file///2021082023083227.pdfIn PDF document text
  • https://blnk.eu/userfiles/files/bugadisupotetudotux.pdfIn PDF document text
  • http://tpfish.com.taipei/archive/upload/files/pigolakusis.pdfIn PDF document text
  • https://bmw-zona.ru/uploads/file/3712721061.pdfIn PDF document text
  • http://campfirewtx.org/userfiles/file/98554484156.pdfIn PDF document text
  • http://bluekeydigital.com/images/pic/file/11783171011.pdfIn PDF document text
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de755e803de---paxejuzazozajiwibi.pdfIn PDF document text
  • https://europartner2.pl/uploads/58539918688.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=matrices+problems+with+solutions+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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