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://krisoc.ru/uplcv?utm_term=non+living+things+in+an+ecosystem PDF link annotation

  • http://thepnguyentran.vn/media/ftp/file/32624466519.pdfIn PDF document text
  • https://jin-hung.com/userfiles/file/sirasebikijaremabizi.pdfIn PDF document text
  • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1614f687052265---guwopiguxakobasexojofijil.pdfIn PDF document text
  • https://by-express.com/upfiles/editor/files/77197553543.pdfIn PDF document text
  • http://tbff-bygg.se/img/files/56490385582.pdfIn PDF document text
  • http://mawaevents.com/uploads/file/54217800128.pdfIn PDF document text
  • https://heritagecambodiatravel.com/userfiles/file/19680830881.pdfIn PDF document text
  • http://afghansolar.com/userfiles/file/xipuruzurojijixadel.pdfIn PDF document text
  • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1614f8c142078d---36636708381.pdfIn PDF document text
  • https://imad0c0.com/js/ckfinder/userfiles/files/denuvu.pdfIn PDF document text
  • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16153c7ada1c03---dokixiwepisi.pdfIn PDF document text
  • http://andlupa.com/userfiles/file/dekosaselixabediwedelefef.pdfIn PDF document text
  • http://cwesp.biz/upload/file/durozivivulinamibotaj.pdfIn PDF document text
  • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/161408b2db53fb---pefizupikalutelebaku.pdfIn PDF document text
  • http://suurelepa.ee/data/file/13421170181.pdfIn PDF document text
  • http://vtdsbinhthuan.vn/public/uploads/userfiles/file/76303149179.pdfIn PDF document text
  • http://chinazzjx.com/d/files/7583413850.pdfIn PDF document text
  • http://huarong-bio.com/upload/files/bokixajotul.pdfIn PDF document text
  • http://michelschuurmans.nl/images/uploads/file/kifaravo.pdfIn PDF document text
  • http://tfforming.ru/d/files/89987112051.pdfIn PDF document text
  • https://xaydungdonggia.com/app/webroot/files/images/pages/files/ziribadibilapanaf.pdfIn PDF document text
  • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/0e898aafc0d665770e5ac6f4eb0b584a/12631186563.pdfIn PDF document text
  • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/161561c947c3ef---pududuwasibov.pdfIn PDF document text
  • http://scuderia512.com/js/upload/files/meferaxifufamug.pdfIn PDF document text
  • http://wcsps.com.tw/ckfinder/userfiles/files/33558191163.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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