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://crewmak.ru/uplcv?utm_term=mathematics+logical+reasoning+pdf PDF link annotation

  • https://congtydaihai.com/upload/files/49394522432.pdfIn PDF document text
  • http://sushiloverca.com/uploads/files/rokepuxilorububawa.pdfIn PDF document text
  • http://xn--80aaffebba2apgigwiiececnggk9e4k.xn--p1ai/pict/file/bijikupubeto.pdfIn PDF document text
  • https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1612f5986d12b1---dujewa.pdfIn PDF document text
  • http://mgbig.com/upload_fck/file/2021-9-1/20210901075125499531.pdfIn PDF document text
  • http://businessvaluationapp.com/fck_files/file/60214322370.pdfIn PDF document text
  • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1612f94f7eeec5---40620717779.pdfIn PDF document text
  • https://kalashad.com/userfiles/file/pupuka.pdfIn PDF document text
  • http://otestmanager.org/club/data/userfiles/file/20210902214927.pdfIn PDF document text
  • http://studiopol.it/userfiles/files/1941753938.pdfIn PDF document text
  • http://marinapogon.pl/upload/file/25318004335.pdfIn PDF document text
  • https://lecachet.fr/docs/files/36402711608.pdfIn PDF document text
  • https://www.le-domaine-de-hauterive.fr/ckfinder/userfiles/files/22164632812.pdfIn PDF document text
  • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/161356dc3cf57c---tuvawigimasixakuxix.pdfIn PDF document text
  • http://hanasushi6.com/uploads/files/16458826992.pdfIn PDF document text
  • https://apteka-wratislavia.pl/halatecza/userfiles/file/wewepomamino.pdfIn PDF document text
  • http://cnsgawefgl.netsociality.com/upload/files/tanulabidezufeve.pdfIn PDF document text
  • https://mekongtransport.com/upload/userfiles/files/xutunemilunipamikojo.pdfIn PDF document text
  • http://tulga.ru/editor/files/41713900774.pdfIn PDF document text
  • http://safetruck.gr/images/file/rapubaluzinigevulipejiba.pdfIn PDF document text
  • http://kibbkw.com/uploads/file/55434627976.pdfIn PDF document text
  • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/9b6306630360533cdcbd62772fdb2f34/9338248925.pdfIn PDF document text
  • http://haithuanphat.com/uploads/files/pilodumam.pdfIn PDF document text
  • https://aymsoft.us/aym_image/files/rovifutinuwonobumeserol.pdfIn PDF document text
  • http://eventclub.pl/userfiles/file/37512953953.pdfIn PDF document text
  • https://diedacorporation.net/freesiafiles/file/musatebunulodomag.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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