Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://allytemp.ru/uplcv?utm_term=derivatives+of+logarithmic+functions+pdf PDF link annotation

  • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/20f761b405b39352bb70e7ee2a5805b4/17313931364.pdfIn PDF document text
  • http://cartonwrappingmachine.com/userfiles/file/73127649734.pdfIn PDF document text
  • https://www.cdsale.org.au/application/third_party/ckfinder/userfiles/files/97934234329.pdfIn PDF document text
  • https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/ca3765919155e9c8d9f5e79519ab0399/14845888763.pdfIn PDF document text
  • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16098f68264dc0---69519845284.pdfIn PDF document text
  • http://balbu.hu/uploads/news/file/jizojozoxosigaxajojev.pdfIn PDF document text
  • http://agrobud.net/uploaded/file/74646959679.pdfIn PDF document text
  • https://rockyshairsalon.com/wp-content/plugins/super-forms/uploads/php/files/1f9dcskr40f8dhrj5mlnvvq2rb/modiwogozeregu.pdfIn PDF document text
  • http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab72188a935---lexafabexikidelafapabuze.pdfIn PDF document text
  • http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093b35abb838---92877600703.pdfIn PDF document text
  • http://hiroi-es.info/yamituki-n/uploads/files/radesi.pdfIn PDF document text
  • http://alituncer.com/userfiles/file/89222011270.pdfIn PDF document text
  • http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a9a703b101f---10541338426.pdfIn PDF document text
  • http://zuche0551.com/upload/file/11921982555.pdfIn PDF document text
  • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16092752095208---34307550260.pdfIn PDF document text
  • https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/160e8292276adb---nekuxosepebologuxigire.pdfIn PDF document text
  • https://sogelec-eng.com/files/ckfinder/files/xezorarabafinog.pdfIn PDF document text
  • https://ilexgold.com/app/webroot/files/userfiles/files/82352353580.pdfIn PDF document text
  • https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/98dbfecbea55b03e8b82707c6e9f2079/96585646894.pdfIn PDF document text
  • https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/uj28jmf56c9fmuv7r0l2lud443/84875437772.pdfIn PDF document text
  • http://londonjip.com/userData/board/file/pupukadigixuvuvozesav.pdfIn PDF document text
  • http://kuehllawpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jowilubuxi.pdfIn PDF document text
  • http://edu-family72.ru/content/images/uploads/file/42009703106.pdfIn PDF document text
  • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/d3e4673def04811b4119807cb449bc75/milirekalokejimoremag.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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