Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://cructi.ru/uplcv?utm_term=lecturas+de+comprension+lectora+con+preguntas+para+bachillerato PDF link annotation

  • https://larrialdiak.es/files/galeria/files/55818920470.pdfIn PDF document text
  • http://peaceinsrilanka.lk/userfiles/file/mafil.pdfIn PDF document text
  • https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cbb2e214a47---zowoful.pdfIn PDF document text
  • http://ohsclassof73.com/clients/9/9a/9a21b0b253f7c4eafe662346d237c286/File/62115346345.pdfIn PDF document text
  • http://longarmacademy.net/fckeditor/userfiles/file/97066329338.pdfIn PDF document text
  • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fed36ed0aab---pisuradutepewigazivuka.pdfIn PDF document text
  • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c3a8694187e---zusogo.pdfIn PDF document text
  • https://bitree.com/ckfinder/userfiles/files/dirodaxokekufawage.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1608b41a623fb1---vonusebosadufidazunuxumad.pdfIn PDF document text
  • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16096b2044af12---xalubogifopefox.pdfIn PDF document text
  • https://stallion-international.com/userfiles/file/rupadijanugeso.pdfIn PDF document text
  • https://ranagro.com/files/4120918196.pdfIn PDF document text
  • http://pngroup.pl/ckfinder/userfiles/files/52534591189.pdfIn PDF document text
  • http://thuaphatlailongthanh.com/upload/contentFile/minhchau/file/47409205623.pdfIn PDF document text
  • https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/9c3v3rs8qogfo01of2uc4rp3pj/94386951348.pdfIn PDF document text
  • http://tatnhapkhau.com/ckfinder/userfiles/files/30868068117.pdfIn PDF document text
  • http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c159849860f---64593055421.pdfIn PDF document text
  • https://ancoraeducacion.com/images/15817098728.pdfIn PDF document text
  • https://cissud.com/uploads/ck_editor/files/23203474656.pdfIn PDF document text
  • https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/8537c24b4e9bf4c6d4875efd6cbc5e21/wetubitakaxem.pdfIn PDF document text
  • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7c3f952b7---41134759614.pdfIn PDF document text
  • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160e9439784e77---savakar.pdfIn PDF document text
  • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca24c8f254---26474793222.pdfIn PDF document text
  • http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/165b099b0041b28e1af05d9e2e4dad62/pebuvijufewiropojisasat.pdfIn PDF document text
  • http://teleinwestor.com/userfiles/file/zosakavadawesivurerugivuk.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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