Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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 http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607c80cf2b168---13075995246.pdf In PDF document text

  • http://thaide.org/userfiles/file/fuwapumifid.pdfIn PDF document text
  • http://www.juniorcollege.cl/ckfinder/userfiles/files/57145206896.pdfIn PDF document text
  • https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/7ro8khfgkvs8irnb5e8rhvmh07/xaparize.pdfIn PDF document text
  • http://uro-medical.pl/zdjecia/fotki/file/39710530506.pdfIn PDF document text
  • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606f08bd987f9---kisadizaf.pdfIn PDF document text
  • http://tomaszfilipczak.pl/userfiles/file/63883822437.pdfIn PDF document text
  • http://www.juniorcollege.cl/ckfinder/userfiles/files/puzopagewuve.pdfIn PDF document text
  • http://dmkaudit.sk/101/upload/file/ninevagumige.pdfIn PDF document text
  • http://111-orte.de/testarea/cwsCMSlight/media/files/15501037768.pdfIn PDF document text
  • http://ebiocell.com/uploadfile/file///2021070611441017.pdfIn PDF document text
  • http://gourmethousemacau.com/UploadFilesfile///pukobemu.pdfIn PDF document text
  • https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/57ba54e3329ba9c61753c2ec24e23d7d/1209894609.pdfIn PDF document text
  • https://sensormaticltd.com/app/templates/js/ckfinder/userfiles/files/dixikewobimisanumigete.pdfIn PDF document text
  • http://skoleniridicubrno.cz/ckfinder/userfiles/files/30158922903.pdfIn PDF document text
  • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/r80ourhjmcpgktbqtbdh3olub4/janoralubotegobejeveg.pdfIn PDF document text
  • http://edgewood1962.com/clients/2/2b/2b25cacec04995aba37d275b9c35b4d1/File/nigupov.pdfIn PDF document text
  • http://garmagostaran.com/Upload/file/zibipagejekin.pdfIn PDF document text
  • http://medicare-darmstadt.de/bilder/UserImages/file/66619065963.pdfIn PDF document text
  • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3438bd2cea---71528281222.pdfIn PDF document text
  • http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a5a4b55991---23653860506.pdfIn PDF document text
  • http://skkouty.cz/ckfinder/userfiles/files/kadobisejewo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=was+the+market+up+or+down+todayPDF link annotation
  • 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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