Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://cructi.ru/uplcv?utm_term=download+firmware+samsung+galaxy+ace+3+gt+s7270+kitkat PDF link annotation

  • http://franceplus.fr/userfiles/file/59652267507.pdfIn PDF document text
  • http://holland-ex.com/images/blog/file/2366610008.pdfIn PDF document text
  • http://compagniaviaggi.gattinonimondodivacanze.it/themes/userfiles/files/koxagi.pdfIn PDF document text
  • http://www.sun-green.eu/ckfinder/userfiles/files/99503088806.pdfIn PDF document text
  • http://krcatikyonetimi.com/userfiles/file/36260753428.pdfIn PDF document text
  • http://commsoft.nu/demo/ktb/wsmbilder/files/47606149557.pdfIn PDF document text
  • http://vip-cond.ru/userfiles/file/noxolizobifonelipulepivu.pdfIn PDF document text
  • http://engroupe.ca/aym_image/files/1754267674.pdfIn PDF document text
  • https://rajatotogroup1.com/contents/files/suzozu.pdfIn PDF document text
  • http://jingmingtai.com/filespath/files/20210915171747.pdfIn PDF document text
  • http://bdpq.hungminhits.com/files/uploaded/files/lojibalebezim.pdfIn PDF document text
  • https://rowadalbyt.com/userfiles/files/83661595625.pdfIn PDF document text
  • http://hosungtour.com/FileData/ckfinder/files/20210907_46F629E50B1ECD9B.pdfIn PDF document text
  • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/5de30ba07713e6efec7123f535f6d517/rimetelizegeweb.pdfIn PDF document text
  • http://veoguidecostarica.com/ci/userfiles/files/75014854669.pdfIn PDF document text
  • https://searchkar.com/ci/userfiles/files/gawaji.pdfIn PDF document text
  • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613857b1c8056---6260867233.pdfIn PDF document text
  • https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/4b0a1e7c7abe53f2e429b46cc8ec11c1/49620114904.pdfIn PDF document text
  • http://fabriziocar.it/userfiles/files/fabifi.pdfIn PDF document text
  • https://unique.global/wp-content/plugins/super-forms/uploads/php/files/60ae88042a38879437c6a3c7685f195a/gikibuvekimivu.pdfIn PDF document text
  • http://fusen-es.info/yamituki-n/uploads/files/69262014168.pdfIn PDF document text
  • http://nkmate.com/FileData/ckfinder/files/20210906_138E4A2FD893A3E0.pdfIn PDF document text
  • http://farmandari-sarvestan.ir/images/news/files/46129940044.pdfIn PDF document text
  • https://lrsdev.com/userfiles/file/14595511108.pdfIn PDF document text
  • https://clubberia.com/js/ckfinder/userfiles/files/fikivawozas.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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