Malicious PDF — malware analysis report

Heuristics 8

• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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=where+is+qr+code+in+my+phone PDF link annotation

  • http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161396e1a17050---60875505360.pdfIn PDF document text
  • http://onlinetradeshow.ir/uploads/files/seruladunaxode.pdfIn PDF document text
  • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a401aac6e9---15545144213.pdfIn PDF document text
  • http://optometrystaprzemysl.pl/userfiles/file/neputinad.pdfIn PDF document text
  • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1614915c8f3b7f---munakezanid.pdfIn PDF document text
  • http://gz-chengeng.com/uploadfile/files/43393464720.pdfIn PDF document text
  • https://momentous-inst.com/uploads/image/files/38762658928.pdfIn PDF document text
  • https://ywint.com/ckfinder/userfiles/files/1632641634.pdfIn PDF document text
  • https://piataafacerilor.ro/app/webroot/files/userfiles/files/16034798928.pdfIn PDF document text
  • http://benetworkingpro.com/ckfinder/userfiles/files/4855459369.pdfIn PDF document text
  • https://bunianco.com/other_files/File/mozanibipugu.pdfIn PDF document text
  • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/vupdio64dtuknd58puoc1durp4/tobizoj.pdfIn PDF document text
  • http://bertoniamministrazione.it/bertoni/public/file/34754800672.pdfIn PDF document text
  • http://gazosilikatnn.ru/uploads/files/xugovorowaroruf.pdfIn PDF document text
  • http://culbertsonlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/mabimemizowizuviwabus.pdfIn PDF document text
  • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/75b4e1697dd303c53790750a298f1976/25048775672.pdfIn PDF document text
  • https://damiel.eu/userfiles/file/88565819355.pdfIn PDF document text
  • http://villa-carlshorst.de/sites/default/files/file/48597870669.pdfIn PDF document text
  • http://euroear.eu/ckfinder/userfiles/files/rebemuzugofav.pdfIn PDF document text
  • https://sikanderajam.com/Robinson/ckfinder/userfiles/files/domefumur.pdfIn PDF document text
  • https://konferencii.ru/js/ckfinder/userfiles/files/pewusoderavesilizanak.pdfIn PDF document text
  • https://tanhoaphat.vn/userfiles/file/6285630189.pdfIn PDF document text
  • https://evpersoneli.net/ev-personeli/file/72154417218.pdfIn PDF document text
  • http://mayinluatudong.com/uploads/userfiles/file/95854461009.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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