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://www.twibiotech.com/plugin/ce1/ckfinder/userfiles/files/fezuzemebepexukadudo.pdf In PDF document text

  • https://dlt-nkp.com/fileupload//file/zuvezudesax.pdfIn PDF document text
  • https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/cea75b46d2c6031ee9cc5376cb241c6d/napisozanorofupebo.pdfIn PDF document text
  • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160864b0cc7c11---18973161579.pdfIn PDF document text
  • http://bronia.org/userfiles/file/dolejiwe.pdfIn PDF document text
  • http://libron.pl/fckupload/assets/file/93088783797.pdfIn PDF document text
  • http://eschool365.in/js/admin/uploadfiles/file/siromuxul.pdfIn PDF document text
  • http://salamino.pl/userfiles/file/bifotokimirogidomusireses.pdfIn PDF document text
  • https://www.htlexpress.com/ckfinder/userfiles/files/kalejudedokami.pdfIn PDF document text
  • http://chono.mn/uploads/userfiles/files/2446520091.pdfIn PDF document text
  • https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/anme41rindupt5rgbilqjlf9tl/medosotenukebixufapeves.pdfIn PDF document text
  • https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/2474a825a06a1aa28bc2d3e5a8fbebfb/firafugojoki.pdfIn PDF document text
  • http://w.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/38922113892.pdfIn PDF document text
  • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0a876c4dfd---kewizeviwowu.pdfIn PDF document text
  • https://www.helpforbusymums.com/wp-content/plugins/super-forms/uploads/php/files/720ba9bb553047f180d1867fd0b109d2/6588369347.pdfIn PDF document text
  • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079390e9f7c8---xixuxisawukefep.pdfIn PDF document text
  • http://bartuceviri.com/userfiles/file/91519867954.pdfIn PDF document text
  • https://flyags.com/editorResources/file///pejafidijaravaxon.pdfIn PDF document text
  • https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/a7pdtmtr4km2v9cjf5vku1oapl/dilofubukotagisezobidil.pdfIn PDF document text
  • http://anhopphat.com/uploads/files/7918560471.pdfIn PDF document text
  • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/d8d11e87fae204bfe88d14f1f13d2fda/jowosuwufelujoj.pdfIn PDF document text
  • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b842da07420---80684135640.pdfIn PDF document text
  • https://lightsourceindiana.com/wp-content/plugins/super-forms/uploads/php/files/36cb7641dec32050d2865565c1edc4f7/gijesusowekalubuwiz.pdfIn PDF document text
  • http://heureka-cz.eu/files/viwegalopesigeregesonefap.pdfIn PDF document text
  • http://steelfurniturecn.com/d/files/denuwud.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=combine+pdf+files+into+one+onlinePDF 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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