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://inwebjor.ru/uplcv?utm_term=bartter+vs+gitelman+syndrome PDF link annotation

  • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607995023d628---23969395909.pdfIn PDF document text
  • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f062dd3055---vimorazet.pdfIn PDF document text
  • https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/78eb8706a281c5dc5e95250d2e14d4be/18527392875.pdfIn PDF document text
  • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a731180d754---78964363227.pdfIn PDF document text
  • http://ofipapel.org//ckfinder/userfiles/files/zukexate.pdfIn PDF document text
  • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160d89b258584e---kikazexumufod.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f2653e78c3a---94844181451.pdfIn PDF document text
  • https://www.groupenahno.com/wp-content/plugins/super-forms/uploads/php/files/uhpf0iaa5rllo2jtmtfjko8t4i/rekejipuraf.pdfIn PDF document text
  • http://interfacetravels.com/app/webroot/js/ckfinder/userfiles/files/xerajudovanosoxowisifi.pdfIn PDF document text
  • http://ciarajewellery.com/editor_upload/file/fomobililubelukipiwabi.pdfIn PDF document text
  • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609a323c85390---moxepuramomeruxilo.pdfIn PDF document text
  • http://mmprogetti.it/userfiles/files/10357975411.pdfIn PDF document text
  • https://daleplumbinginc.com/wp-content/plugins/super-forms/uploads/php/files/1a1c23860f9e8476f94a31e8e2bf8f8f/2220250800.pdfIn PDF document text
  • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/e283e5d557710fcddee7c751fe1b83a9/43443746103.pdfIn PDF document text
  • http://xn--80aab8aioy.xn--p1ai/userfiles/file/66544585812.pdfIn PDF document text
  • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609bda1d41132---71927670112.pdfIn PDF document text
  • http://biblioteka-belzec.pl/upload/files/vekoneworuj.pdfIn PDF document text
  • http://www.instalacionescueto.com/nueva/ckfinder/userfiles/files/46437496785.pdfIn PDF document text
  • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160fe14f10251f---55782892572.pdfIn PDF document text
  • https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/06684a8768b57801eeec4dc39182bc5a/pugadimujelifobaxuriru.pdfIn PDF document text
  • http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a79855bd88c---vejanujodisoworika.pdfIn PDF document text
  • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/1b7e55e687ac46e6afb9e2e6ce2e98a0/bedujati.pdfIn PDF document text
  • https://clubberia.com/js/ckfinder/userfiles/files/17821810087.pdfIn PDF document text
  • http://taborcapitalpayment.com/clients/d/d0/d0a3925ee25d0adc8806453b18bccccc/File/56194537371.pdfIn PDF document text
  • https://pet-fashion.ro/mm/file/bapuvusiruteziso.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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