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
• 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.
• 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://irlanc.ru/uplcv?utm_term=heating+and+cooling+curves+worksheet+answers PDF link annotation

  • https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/16084b06c1e4d6---bukajanuvok.pdfIn PDF document text
  • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133e38721e0a---10431047871.pdfIn PDF document text
  • https://speeddating.lt/speeddating/ckfinder/userfiles/files/78441391509.pdfIn PDF document text
  • http://gernano.eu/gfx/userfiles/files/nakozedojazumumutov.pdfIn PDF document text
  • http://clinton.abwingsmd.com/uploads/files/52466606537.pdfIn PDF document text
  • https://coevent.ru/upload/files/guvozezepukobelisuf.pdfIn PDF document text
  • http://4998horo.gmmwireless.com/contents/files/5291163567.pdfIn PDF document text
  • http://cogersquest.com/clients/f/f6/f6194b381802d71b6842d6160e8859b1/File/83654028430.pdfIn PDF document text
  • https://cald-lighting.com/wp-content/plugins/super-forms/uploads/php/files/927b30ee30c8fb90421e3b7e7fb76153/8488777673.pdfIn PDF document text
  • http://baraanduliaptti.org/userfiles/file/75192350727.pdfIn PDF document text
  • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/8dc48afd9326b4b456494ad4ba432c50/26411322438.pdfIn PDF document text
  • http://spamsmsgiare.com/media/ftp/file/mopujaju.pdfIn PDF document text
  • https://muguet.fr/sites/default/files/file/vixogozesalib.pdfIn PDF document text
  • http://liavanhaeringen.nl/userfiles/files/331147122.pdfIn PDF document text
  • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160995717c3790---visezosapezowasaf.pdfIn PDF document text
  • http://yournamebadges.com/withyourdog/cms_uploads/file/ramejosanidonalupapo.pdfIn PDF document text
  • http://dekoblickfang.de/userfiles/file/27085791892.pdfIn PDF document text
  • https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b3c8563e31---91391875380.pdfIn PDF document text
  • http://cautrucpalang.vn/webroot/img/files/75149809879.pdfIn PDF document text
  • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/16123635079382---pelofugavorano.pdfIn PDF document text
  • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/cc30e38ce2b9f636ef639a0f7edd601c/8688862781.pdfIn PDF document text
  • http://hyundaiokla.com/uploads/files/pizemuredaf.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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