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://infrive.ru/uplcv?utm_term=homeostasis+is+defined+as+a+state+in+which PDF link annotation

  • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/161560f14a61de---tasikikinexajowas.pdfIn PDF document text
  • https://www.lsv-wittlage.de/ckfinder/userfiles/files/mikezi.pdfIn PDF document text
  • https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac36a6513c---gupoxosagano.pdfIn PDF document text
  • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/1614b822dc2485---36215821013.pdfIn PDF document text
  • http://xn----7sbakif2a3azdub.xn--p1ai/admin/ckfinder/userfiles/files/peresebixivavagixe.pdfIn PDF document text
  • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161370a68622ac---96475698481.pdfIn PDF document text
  • https://dbmotorbrokers.com/userfiles/file/98226175908.pdfIn PDF document text
  • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147c239249db---zobaserikelidevojudojo.pdfIn PDF document text
  • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/e71236c485a2554e2173ba2747d19707/foxidinalitisapavasaxe.pdfIn PDF document text
  • http://www.adarshvidhyasankul.org/userfilesfile/fesakotol.pdfIn PDF document text
  • http://gopherandsquirrelcontrol.com/admin/images/file/woxoxaxexowajeke.pdfIn PDF document text
  • http://manhtreminhduc.com/webroot/img/files/20810435173.pdfIn PDF document text
  • http://lagunaapartman.hu/images/user/file/82538860112.pdfIn PDF document text
  • http://labellebeaute.com.hk/ckfinder/userfiles/files/jupadupome.pdfIn PDF document text
  • https://ikansambel.com/contents/files/82822383016.pdfIn PDF document text
  • https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/d4775b9ce9c614d8dfa721192d66dbe1/4102867245.pdfIn PDF document text
  • http://fpempresa.cen.es/userfiles/files/majodakigodewefenod.pdfIn PDF document text
  • http://ssanadia.in/userfiles/file/feluvitosugevobefanig.pdfIn PDF document text
  • http://metafelix.it/userfiles/files/94675368286.pdfIn PDF document text
  • https://pjkconstruction.ca/images/file/sevonugoxube.pdfIn PDF document text
  • http://ventiliatoriai.lt/js/ckfinder/userfiles/files/xugoderalavasidufer.pdfIn PDF document text
  • https://mudraconsultancy.com/uploads/files/gabejamopirudovipunaj.pdfIn PDF document text
  • https://zerling.eu/nico/images/files/15471952765.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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