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://medvor.ru/uplcv?utm_term=circle+diagram+pdf PDF link annotation

  • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c4c5a8282f2---bulinotusawaxokuf.pdfIn PDF document text
  • http://phongkhamthienhoa.org/images/files/1942754999.pdfIn PDF document text
  • http://worldofpacifiers.com/editor_uploads/system/files/kexilipuvuzedifa.pdfIn PDF document text
  • https://hr-serdahel.hu/images/file/vixezob.pdfIn PDF document text
  • http://goksirlambinowice.pl/img/upload/files/14389030023.pdfIn PDF document text
  • http://chieusangducphat.com/uploads/userfiles/file/55535984170.pdfIn PDF document text
  • http://somersetcountybar.org/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/mased.pdfIn PDF document text
  • https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089b5123ad78---53674189464.pdfIn PDF document text
  • http://savoie-outils-coupants.com/ckfinder/userfiles/files/ruxerebibazazinakekuk.pdfIn PDF document text
  • https://cmfnepal.org/userfiles/files/13575381317.pdfIn PDF document text
  • http://bjeclinic.com/ckfinder/userfiles/files/42854315074.pdfIn PDF document text
  • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/sp9vb56h6krbdpd4n39usc9667/79260506203.pdfIn PDF document text
  • http://bagiez.com/userfiles/file/43945180366.pdfIn PDF document text
  • https://abctranslink.com/ckfinder/userfiles/files/40037942412.pdfIn PDF document text
  • http://campfirewtx.org/userfiles/file/jilosofumizedeke.pdfIn PDF document text
  • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16085a3931f1f8---vemuvanerofuxu.pdfIn PDF document text
  • https://energooptima.hu/upload/File/72502485220.pdfIn PDF document text
  • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160af91a8cfd8d---xesabimidupeviwipotisaz.pdfIn PDF document text
  • http://bivalyracing.hu/files/file/10875231409.pdfIn PDF document text
  • http://inbeeldt.nl/userfiles/file/gawenuva.pdfIn PDF document text
  • http://www.allatpatikapecs.hu/images/file/8293534167.pdfIn PDF document text
  • https://volnynaklad.cz/data/file/71277873402.pdfIn PDF document text
  • https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/4db3cd664007892f77b9000b46441f44/rusim.pdfIn PDF document text
  • http://szzxwx.com/Upload/Upload/file/2021617028482986.pdfIn PDF document text
  • https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/0aac7efde0d2c999791be50679f6ea3d/48309797772.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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