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://synerhu.ru/uplcv?utm_term=all+you+zombies+book+pdf PDF link annotation

  • http://bruisedreedfoundation.org/clients/4/4d/4d9d7eec3bf3a09fa0457ace138f6a4e/File/62124493449.pdfIn PDF document text
  • http://gshosnab.ru/userfiles/file/827873990.pdfIn PDF document text
  • http://sincaremedicaltour.com/js/upload/31506387820.pdfIn PDF document text
  • http://apexhealthnutrition.com/newerac2c/userfiles/file/gejoxu.pdfIn PDF document text
  • http://crimesla.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/4855897718.pdfIn PDF document text
  • http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/161309083d2421---5937044380.pdfIn PDF document text
  • https://mlmrockstars.com/ckfinder/userfiles/files/96283151753.pdfIn PDF document text
  • https://www.premiumtrade.ro/ckfinder/userfiles/files/44695484796.pdfIn PDF document text
  • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/3bfbdbf1e85c455a6feb8fa80abff38b/sagaxas.pdfIn PDF document text
  • http://cymagun.com/userfiles/40141873506.pdfIn PDF document text
  • http://marinda.ru/pics/images/file/sumokagoluxuguduzu.pdfIn PDF document text
  • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160744fdd65167---kudatu.pdfIn PDF document text
  • https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/5rjsn1sgk6f35gdda42o9ucf06/99444345889.pdfIn PDF document text
  • https://diphong.com/uploads/38528508688.pdfIn PDF document text
  • http://bestbuyfromindia.com/userfiles/file/lubofukosavenigizaluragiv.pdfIn PDF document text
  • http://costruzionibulagna.it/userfiles/files/zevumokuzu.pdfIn PDF document text
  • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f45c22eb3f---54029238742.pdfIn PDF document text
  • https://appchecar.com/ckfinder/userfiles/files/dofuzobefokajafoj.pdfIn PDF document text
  • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/bpgtsvmuarrfobd91va867eaug/pimewa.pdfIn PDF document text
  • http://ski-experience-japan.com/images/blog//file/7272485158.pdfIn PDF document text
  • https://agatanorek.com/files/file/nowabeforuw.pdfIn PDF document text
  • http://b-solutions.net/userfiles/file/57801170295.pdfIn PDF document text
  • http://nanchang.chinatupai.com/web/js/ckfinder/userfiles/files/71100436949.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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