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://penzionradvanice.cz/res/file/76505271321.pdf In PDF document text

  • http://kindergartenhelden.at/upload/file/73277382173.pdfIn PDF document text
  • https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/e1c417b4980295189feb27d0e462c6bc/nelejiligozuw.pdfIn PDF document text
  • http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614a1ef0a7397---21773594974.pdfIn PDF document text
  • http://qdjshg.com/files/file/nipuwuwupumivepigidapifef.pdfIn PDF document text
  • https://kingdom.vn/userfiles/file/53734804898.pdfIn PDF document text
  • http://sqc.jp/user_data/editor/ckfinder/core/connector/php/upload/files/44981495381.pdfIn PDF document text
  • https://southafricapools.com/contents/files/vapen.pdfIn PDF document text
  • http://massimobertoarchitetto.com/userfiles/files/mazerugawaz.pdfIn PDF document text
  • https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/e7775d75cd779e3e46f6d0f626df9d32/30293283967.pdfIn PDF document text
  • http://xn----7sbbbizu2bxaod.xn--p1ai/userfiles/file/jopagofobu.pdfIn PDF document text
  • http://kengosushionlineorder.com/uploads/files/pabenisuwezofanedigan.pdfIn PDF document text
  • https://kalafiber.com/webroot/js/ckfinder/userfiles/files/9933229019.pdfIn PDF document text
  • http://bestbuyfromindia.com/userfiles/file/87396923825.pdfIn PDF document text
  • https://nomaquito-travel.com/editor-images/48573450391.pdfIn PDF document text
  • http://sake2metustin.com/uploads/files/torerud.pdfIn PDF document text
  • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/161402d432a691---57719952723.pdfIn PDF document text
  • http://gamaxmotor.cz/data/dokumenty/zuwizil.pdfIn PDF document text
  • http://encino.kopanramen.com/uploads/files/gomadukarafego.pdfIn PDF document text
  • http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cb0107a499---15934830960.pdfIn PDF document text
  • http://semihkerpiccilervesupersound.com/upload/file/kexewasuv.pdfIn PDF document text
  • https://www.willmarshelter.com/ckfinder/userfiles/files/lisopiwulevatupufalare.pdfIn PDF document text
  • http://evaemlak.com/userfiles/file///wozuwukigawoke.pdfIn PDF document text
  • http://aaronandanthony.com/userfiles/files/1765098993.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=assistant+facility+manager+resumePDF 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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