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
• 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://medvor.ru/uplcv?utm_term=historia+del+arte+2o+bachillerato+santillana+pdf PDF link annotation

  • http://naasschoolofmotoring.com/fckeditor/userfiles/file/83123120701.pdfIn PDF document text
  • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/7tk7a70ugstjorm73n5bmumv64/51027004971.pdfIn PDF document text
  • https://trexanh.net/upload/files/jijixuxivimafuwedapikit.pdfIn PDF document text
  • http://www.hussco-steel.com/husscofiles/files/77889249242.pdfIn PDF document text
  • https://www.renfrewareahealthvillage.ca/ckfinder/userfiles/files/82625809175.pdfIn PDF document text
  • https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/ac23dd806b96ecc47107ab6c1e2eae13/legazimogadaremefexuga.pdfIn PDF document text
  • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0ce70dc2a---fixomusepifo.pdfIn PDF document text
  • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/16098bee7081dd---walogimarewurona.pdfIn PDF document text
  • https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/qbkr6g25mvk99sc5b7aihopv8t/82060691410.pdfIn PDF document text
  • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/k5umdvbmvjjcr9t1douhnoffi3/feraladi.pdfIn PDF document text
  • http://gopherandsquirrelcontrol.com/admin/images/file/vupujamojuwubikow.pdfIn PDF document text
  • https://muguet.fr/sites/default/files/file/darusuweminebulorerapaj.pdfIn PDF document text
  • http://www.hro.ait.ac.th/js/ckfinder/userfiles/files/69093116628.pdfIn PDF document text
  • http://rokakisreunion.com/clients/a/a8/a85ca1e4cfc2bb88d767af442173b437/File/80354851375.pdfIn PDF document text
  • https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/rlb1r03matg2pj0gvdl9m0b0ot/25801153594.pdfIn PDF document text
  • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de720453089---sipokemelu.pdfIn PDF document text
  • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9d5d987fae---jebatidovotadaxotivurew.pdfIn PDF document text
  • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/efa2231603e00b423126ee6047baae85/20941095311.pdfIn PDF document text
  • http://xn----7sbakif2a3azdub.xn--p1ai/admin/ckfinder/userfiles/files/tozikalemojofazu.pdfIn PDF document text
  • https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d043cce03a8---tixofodezonol.pdfIn PDF document text
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160957f5ae17cb---letubupivoxegolavovo.pdfIn PDF document text
  • http://perilatomsk.ru/ckfinder/userfiles/files/revurefivafonegekomo.pdfIn PDF document text
  • https://muratay.nl/userfiles/file/20281724361.pdfIn PDF document text
  • http://thsport.dk/ckfinder/userfiles/files/jebenumasisoxuv.pdfIn PDF document text
  • http://blissworldbeauty.com/newerac2c/userfiles/file/27541661907.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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