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://smidgel.ru/uplcv?utm_term=5.2+vertex+form+worksheet PDF link annotation

  • https://supportsystemsvainc.com/home/ssvi/public_html/ckfinder/userfiles/files/wokepelajuwe.pdfIn PDF document text
  • http://carnow.jp/js/upload/files/dojujorozowilav.pdfIn PDF document text
  • http://www.bandungmesin.com/file/28293556683.pdfIn PDF document text
  • http://zkmeiqi.com/admin/ckfinder/upfile/files/33496800772.pdfIn PDF document text
  • https://yennenga.org/business_school/uploads/file/34936698949.pdfIn PDF document text
  • http://wedooverseas.com/userfiles/file/nimosadibodezopupu.pdfIn PDF document text
  • https://locktactyuma.com/userfiles/file/78232853815.pdfIn PDF document text
  • https://bushregenerators.net/userfiles/files/75762510380.pdfIn PDF document text
  • http://glcore.net/ckfinder/userfiles/files/sojirizoxeme.pdfIn PDF document text
  • http://zhymwz.com/upfile/file/dupufevudazawitixewog.pdfIn PDF document text
  • http://willettelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/69438516573.pdfIn PDF document text
  • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160afa2d32f884---kijixofebojaretin.pdfIn PDF document text
  • http://feach.ie/images/uploads/file/zijagebamibivefudavi.pdfIn PDF document text
  • http://savalis.ru/userfiles/file/tobaturakupo.pdfIn PDF document text
  • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/pg61g4lsslt2jalkiatnfqcd0v/zokogub.pdfIn PDF document text
  • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/ed2bed0a66056a0c0cc10ece0cd5c588/68548209043.pdfIn PDF document text
  • http://escuelasfutbol8.com/docs/files/91348919705.pdfIn PDF document text
  • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ae70c4d6a96---podin.pdfIn PDF document text
  • http://cristal-in.fr/userfiles/file/lejonokowiso.pdfIn PDF document text
  • http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160756ea83264d---lopuvagimesexoruxisofefap.pdfIn PDF document text
  • https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/bevojicd44c3d3ito6vfmeh1s1/navat.pdfIn PDF document text
  • https://grupo.iberia.com/js/ckfinder/userfiles/files/zabix.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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