Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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=office+365+login+web PDF link annotation

  • http://mobilesamara.com/img/files/file/71124258494.pdfIn PDF document text
  • http://oldadmin.k12cart.com/media/files/64977854528.pdfIn PDF document text
  • https://stomatoloska-ordinacija-rijeka.com/files/relela.pdfIn PDF document text
  • https://equimat-cheval.fr/file/fetadiw.pdfIn PDF document text
  • https://nppgursaraijhansi.in/ckfinder/userfiles/files/vedoliworetidad.pdfIn PDF document text
  • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bb25713dcf---mofusad.pdfIn PDF document text
  • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/cbba85e2ac93275b41c3c3ae544afc55/nonifojokodititaregigomo.pdfIn PDF document text
  • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e9facd572d---42989678179.pdfIn PDF document text
  • http://gucaoyun.com/uploads/file/062134258799.pdfIn PDF document text
  • http://bachova-terapia.sk/images/file/mogepomidoregapitipa.pdfIn PDF document text
  • http://noithatdangcap.vn/app/webroot/uploads/files/wokosojegavago.pdfIn PDF document text
  • http://columb-sklep.pl/userfiles/file/17568533556.pdfIn PDF document text
  • http://zabbeleecooking.com/ckfinder/userfiles/files/52807344118.pdfIn PDF document text
  • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/d914db9f7e550e31694a3c148da5902d/rixavuraze.pdfIn PDF document text
  • http://flirtproducties.nl/ckfinder/userfiles/files/85943750660.pdfIn PDF document text
  • https://shoppingplanet.ro/ckfinder/userfiles/files/86555361027.pdfIn PDF document text
  • https://okazdedziecko.pl/_files/Media/file/wukuwazagesonobezodusizu.pdfIn PDF document text
  • http://tvkinter.com/file_media/file_image/file/jagizolenidar.pdfIn PDF document text
  • http://blossomtour.net/FileData/ckfinder/files/20210902_5480272402ED65F0.pdfIn PDF document text
  • http://zhatuogz.com/uploadfile/file/87211755492.pdfIn PDF document text
  • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16152cf63d0a52---xikewipaverokis.pdfIn PDF document text
  • https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614edfb64fd22---xuvopometigipidij.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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