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://wastran.ru/uplcv?utm_term=caballo+de+troya+tomo+1+pdf PDF link annotation

  • http://blow-w124.com/js/upload/files/51052981404.pdfIn PDF document text
  • http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/352497b049b1092fe8bac093e80fcb55/7500386940.pdfIn PDF document text
  • http://bolshunoff.ru/images/wysiwyg/file/83272384022.pdfIn PDF document text
  • https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086840861375---90211762494.pdfIn PDF document text
  • http://studiotecnicobonoli.com/userfiles/files/7845323394.pdfIn PDF document text
  • https://pet-fashion.ro/mm/file/39375060115.pdfIn PDF document text
  • http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/160866a9d79d35---62891772415.pdfIn PDF document text
  • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1608ca0a54381d---2440994976.pdfIn PDF document text
  • http://impactpluslearning.com/ckfinder/userfiles/files/xutefulavuwusemejifemo.pdfIn PDF document text
  • http://ng-sons.com/userfiles/file/xokimenorudolesapu.pdfIn PDF document text
  • http://denkobarbell.com/_upload/files/vatudoj.pdfIn PDF document text
  • http://laserinnsbruck.com/static/26972256833.pdfIn PDF document text
  • https://huuphongplastic.vn/uploads/images/files/92493139260.pdfIn PDF document text
  • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608e6aa098f8a---tagifuzorufogum.pdfIn PDF document text
  • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/f5b506e2b2655464d1415224718cfdf9/dafakixodivivu.pdfIn PDF document text
  • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a125e83b4f3.pdfIn PDF document text
  • http://anthonyellisonfamilyreunion.com/clients/f/ff/ff850d76676c1858bf5e443b7a907d3b/File/17957981954.pdfIn PDF document text
  • http://group-anons.ru/userfiles/files/26393880608.pdfIn PDF document text
  • http://peaceinsrilanka.lk/userfiles/file/39156573633.pdfIn PDF document text
  • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/160f04fbe0075b---95695852713.pdfIn PDF document text
  • https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/5911f94fb94aae76a6c25f49fec7c8de/70112215035.pdfIn PDF document text
  • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160742a0f158a7---dubudibexu.pdfIn PDF document text
  • http://otvorene-srdce.sk/userfiles/file/10669049109.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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