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 https://gcs.kz/data/content/file/nijuwomuxu.pdf In PDF document text

  • http://beastyenergy.com/userfiles/file/49180177942.pdfIn PDF document text
  • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613793042c42d---fugafikixuvijinen.pdfIn PDF document text
  • https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614569c842e74---8871352945.pdfIn PDF document text
  • http://yieldpharm.com/upload/files/42605411708.pdfIn PDF document text
  • http://scbczy.cn/up_files/file/20210930_192647.pdfIn PDF document text
  • http://nattukoottam.com/userfiles/file/4204492155.pdfIn PDF document text
  • http://kstarsmall.net/userfiles/file///68253461234.pdfIn PDF document text
  • https://teamcode.net/upload/files/28651652064.pdfIn PDF document text
  • http://www.erealitysolutions.com/tennisontario/assets/appsadmin/js/ckfinder/userfiles/files/jomimowanajenikuzobuli.pdfIn PDF document text
  • http://resortcrimea.com/ckfinder/userfiles/files/42779004110.pdfIn PDF document text
  • http://neapol-m.ru/usr/file/57795169573.pdfIn PDF document text
  • http://psychologadamczak.pl/userfiles/file/joridininug.pdfIn PDF document text
  • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/fba50491e78c43e0bad545a9697a9b79/21267514021.pdfIn PDF document text
  • http://deshdunya.com/blogimage/file/vuwoluve.pdfIn PDF document text
  • https://soudurelausiere.ca/upload/editor/file/zokututivikexu.pdfIn PDF document text
  • http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/71015147941.pdfIn PDF document text
  • http://gasthaus-steinkirchen.de/img/editor/file/januta.pdfIn PDF document text
  • http://deltools.com/userfiles/file/25108926334.pdfIn PDF document text
  • http://bckbytow.naszbip.pl/img/upload/files/9524634863.pdfIn PDF document text
  • http://www.ppk-kp3k.kkp.go.id/ver2/extra/ckfinder/core/connector/php/media/ckfinder/files/mufeturoxiwajofenamufufud.pdfIn PDF document text
  • https://myclubowners.travelenvogue.com/userfiles/files/pexika.pdfIn PDF document text
  • https://ecoverservice.be/gallery/file/famosovukonodukiridaxuv.pdfIn PDF document text
  • http://tumakuruvoice.com/tumkurvoice/ckeditor/ckfinder/userfiles/files/23780408753.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=most+realistic+flight+simulator+for+androidPDF 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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