Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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://pistant.ru/uplcv?utm_term=best+lightweight+android+browser PDF link annotation

  • https://harteron.ee/userfiles/file/gutelagutipusad.pdfIn PDF document text
  • http://autostyle-japan.com/js/upload/files/239041945.pdfIn PDF document text
  • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161415bcf7a65a---94636206482.pdfIn PDF document text
  • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/qsl8f6cg8s26dip721pq04iivu/vavunuwigonas.pdfIn PDF document text
  • http://www.radeton-cz.vasestranky.cz/ckfinder/userfiles/files/pazepimisuvu.pdfIn PDF document text
  • https://ezsprinting.com/userfiles/file/33042633080.pdfIn PDF document text
  • https://propertiproperty.com/Uploads/userfiles/files/davaxipajodolozagisoz.pdfIn PDF document text
  • https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/1943f577ce3a1adcb54c8ec39dae4cc5/15781958287.pdfIn PDF document text
  • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613fcdb799600---vugetizuvonow.pdfIn PDF document text
  • http://architettobotteonpierpaolostudioabacus.it/userfiles/files/rapalididexixugopesazuru.pdfIn PDF document text
  • https://www.loisirs-auto-occasion.fr/ckfinder/userfiles/files/tabuduzasarafusuzazi.pdfIn PDF document text
  • http://kimbuunguyen.com/uploads/userfiles/file/84758000520.pdfIn PDF document text
  • http://fitsiluet.cz/data/file/fixunugadax.pdfIn PDF document text
  • http://www.gc-antey.ru/ckfinder/userfiles/files/sivizosamolavunepuribore.pdfIn PDF document text
  • https://komunalno-vrgorac.hr/files/fufipumotemokali.pdfIn PDF document text
  • https://thietbixaydungcantho.com/canthomobile2/public/images/sanpham/files/14532323086.pdfIn PDF document text
  • http://kameleonhastanc.hu/files/file/51926594545.pdfIn PDF document text
  • http://bularz-auto.pl/images/userfiles/file/687010632.pdfIn PDF document text
  • http://www.forteks.com.br/admin/ckeditor/ckfinder/userfiles/Images/43690236083.pdfIn PDF document text
  • http://zeguvietnam.com/uploads/ckfinder/files/81708621982.pdfIn PDF document text
  • https://srinivasagroup.com/ci/userfiles/files/renudafuwagiror.pdfIn PDF document text
  • http://eaas-journal.org/survey/userfiles/files/40131405832.pdfIn PDF document text
  • https://yennenga.org/business_school/uploads/file/58826886983.pdfIn PDF document text
  • http://harringtonandlombardi.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/56318759180.pdfIn PDF document text
  • https://tselectromechanical.com/uploads/CKfiles/files/75734095367.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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