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://laborke.ru/uplcv?utm_term=moving+data+from+android+to+ios PDF link annotation

  • https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/d67f4ad0c16cb4d1e81b4adb91895a59/59562590965.pdfIn PDF document text
  • http://coimbrasoftware.hu/images/uploads/files/19506419414.pdfIn PDF document text
  • http://sochisushi.nl/survey/userfiles/files/tumujiguxuvekuxuvez.pdfIn PDF document text
  • http://www.injamal.es/nueva/ckfinder/userfiles/files/84887548182.pdfIn PDF document text
  • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ad2f589a76---72167856133.pdfIn PDF document text
  • http://indagosrl.it/userfiles/files/55237493523.pdfIn PDF document text
  • http://grupafurman.pl/!mag2011/userfiles/file/64205935790.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161397a8e00a8c---86394075321.pdfIn PDF document text
  • http://hydrem.ru/images/file/8790519733.pdfIn PDF document text
  • https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/73b83e6215583702f8946f5b1adeea1e/94304381444.pdfIn PDF document text
  • http://kingsfinancialconsulting.com/userfiles/file/radamuvekelijijijaxotaba.pdfIn PDF document text
  • https://thietbigas.net/media/files/18489102672.pdfIn PDF document text
  • http://jd6618.com/jd6618/file/2021-9/file/LwpCms2021_09_03_13_47_03_6097.pdfIn PDF document text
  • http://helenhotel.vn/upload/files/87403528134.pdfIn PDF document text
  • http://xn--80aa5alfu.kz/file/sulix.pdfIn PDF document text
  • http://ndc-group.ru/uploads/files/34203409452.pdfIn PDF document text
  • https://inprovitvenezuela.com/ckfinder/userfiles/files/74609350470.pdfIn PDF document text
  • http://ksiclubbiz.ksiclub.org/svnprojects/DHD/Source/images/files/53626190792.pdfIn PDF document text
  • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144608dbac7e---36627234025.pdfIn PDF document text
  • http://nitexprofi.cz/userfiles/file/26981423076.pdfIn PDF document text
  • https://fotofidelity.cz/userfiles/file/davepepipalonalikuwa.pdfIn PDF document text
  • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/161370bc74b238---1720237999.pdfIn PDF document text
  • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/161387103ec8c3---vibukowudidagusekutuvoz.pdfIn PDF document text
  • http://thai-apsproducts.com/file_media/file_image/file/rolutomekepavomutitemoju.pdfIn PDF document text
  • https://balajitutorial.com/admin/userfiles/file/35038341039.pdfIn PDF document text
  • https://keiba-like.biz/js/ckfinder/userfiles/files/lekerijidune.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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