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://nomylo.ru/uplcv?utm_term=make+chrome+dark+mode PDF link annotation

  • http://aven.su/userfiles/file/61056786468.pdfIn PDF document text
  • http://hyswimpool.com/userfiles/pikoxilitamufemu.pdfIn PDF document text
  • https://pulsekb.ru/admin/ckfinder/userfiles/files/gobev.pdfIn PDF document text
  • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/7578c10c4824e6b106ca17fba346ef0d/16338684434.pdfIn PDF document text
  • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137b6299c95a---33556957210.pdfIn PDF document text
  • https://kalimati.in/userfiles/file/surogeparepovukuladaj.pdfIn PDF document text
  • http://costanzolegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/38919424243.pdfIn PDF document text
  • https://www.champagne-auge-dascier.com/ckfinder/userfiles/files/59271447858.pdfIn PDF document text
  • http://larrysiegellaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/petuwofimek.pdfIn PDF document text
  • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/2896325c8e11f58087d78f449b5cf2eb/3347106901.pdfIn PDF document text
  • http://xn--9i1b14lwsg1seumdzsx.com/upload/fckeditor/file/zesekatomo.pdfIn PDF document text
  • https://www.sophrologue-nimes.fr/upload/news/files/mifemo.pdfIn PDF document text
  • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/ceece9430908686e74eb5d56c2bfd765/givinofagaxeserijuzulexem.pdfIn PDF document text
  • https://impactmediaresources.com/userfiles/file/72525524997.pdfIn PDF document text
  • http://algarestofos.pnh.pt/js/ckfinder/userfiles/files/zizul.pdfIn PDF document text
  • http://eskuvoiiranytu.hu/blog/file/dolorezarotojekoz.pdfIn PDF document text
  • http://kleinschaden.expert/userfiles/file/jujobijinotenawowirad.pdfIn PDF document text
  • http://gaineyranchaz.com/userimages/23361392989.pdfIn PDF document text
  • http://ryyw.com/upload/files/2021/09/202109031000039987.pdfIn PDF document text
  • http://thebeautyofdesign.nl/ckfinder/userfiles/files/xatorejuluxularaxofakaxel.pdfIn PDF document text
  • http://alatasfilms.gr/ILC/img/file/kefogebitezuponaxa.pdfIn PDF document text
  • http://langeline.com/ckeditor/upload/files/2938128743.pdfIn PDF document text
  • http://congtyvima.com/images/Download/8367081888.pdfIn PDF document text
  • https://maintogelonline.info/contents/files/29799082742.pdfIn PDF document text
  • https://momentous-inst.com/uploads/image/files/38353243490.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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