Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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://smidgel.ru/uplcv?utm_term=user+agent+switcher+to+chrome PDF link annotation

  • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609f47f855411---gogopibeborem.pdfIn PDF document text
  • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1607f72634dc09---81564371116.pdfIn PDF document text
  • https://divinenine.net/userfiles/file/lulexuwux.pdfIn PDF document text
  • https://empezo.xyz/js/ckfinder/userfiles/files/wijikuv.pdfIn PDF document text
  • http://am-assets.com/aom/magnolia/userfiles/file/jesadizanapanulali.pdfIn PDF document text
  • http://valeneighbors.com/userimages/8347385853.pdfIn PDF document text
  • https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/42f4cb0ea8a9096d76b75b32a8475a80/kemes.pdfIn PDF document text
  • http://posekatzahradu.cz/files/file/77032284728.pdfIn PDF document text
  • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/2qmvmqkahg1pmuosta5k0ou0m1/zarorijatafoxo.pdfIn PDF document text
  • https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af80aa467d8---kosepa.pdfIn PDF document text
  • http://beachfirebrands.com/userfiles/file/48058187719.pdfIn PDF document text
  • https://alexandrapanayotou.com/web/images/static/file/35973963131.pdfIn PDF document text
  • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/160da7895c5019---15711614071.pdfIn PDF document text
  • https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/4b7df1e1f045ced8953814d3b92bbf40/88174245455.pdfIn PDF document text
  • https://powermailer.in/userfiles/file/47754578342.pdfIn PDF document text
  • http://dragonspond.com/uploads/files/73242375639.pdfIn PDF document text
  • https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6570aa746---93502262575.pdfIn PDF document text
  • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160ccd4b0eb292---49124496035.pdfIn PDF document text
  • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608118d2d7ff2---foxes.pdfIn PDF document text
  • https://craftsmancuttingdies.com/wp-content/plugins/super-forms/uploads/php/files/b06c31446e9987daed3a7c4df381048e/xamukeniwo.pdfIn PDF document text
  • http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3f82d0c1b---45908793743.pdfIn PDF document text
  • http://bogelaipigeon.com/upload/file/84564711163.pdfIn PDF document text
  • http://acril.ru/ufiles/files/62413696242.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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