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://crewmak.ru/uplcv?utm_term=euphemism+practice+worksheet PDF link annotation

  • http://langfordfinancialservices.com/userfiles/files/50007075689.pdfIn PDF document text
  • http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607774b8cbe4c---26413857971.pdfIn PDF document text
  • https://vetregistr.com/ckfinder/userfiles/files/xevosefokukubi.pdfIn PDF document text
  • http://ikhmongol.mn/ckfinder/userfiles/files/88455955526.pdfIn PDF document text
  • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/8lk1uvrtu5fo8guabhqerjbo5i/40127862329.pdfIn PDF document text
  • http://keitbg.com/images/files/xirokivuvex.pdfIn PDF document text
  • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/bvrkjbhduigtec195o84tti106/46134946776.pdfIn PDF document text
  • https://htlexpress.com/ckfinder/userfiles/files/42590791069.pdfIn PDF document text
  • http://ya-ke.cn/admin/upload/44198369526.pdfIn PDF document text
  • http://kxnjl.com/userfiles/files/tipigozugizolibasexevaj.pdfIn PDF document text
  • https://littleedupark.com/ckfinder/userfiles/files/gobix.pdfIn PDF document text
  • http://yossy.biz/userfiles/file/54813097344.pdfIn PDF document text
  • http://nawaress.com/webroot/js/ckfinder/userfiles/files/legexajotuteli.pdfIn PDF document text
  • https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607dfd9d9db4b---59007007039.pdfIn PDF document text
  • https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160facb185fd09---11604688251.pdfIn PDF document text
  • https://actioncoach.com.my/wp-content/plugins/formcraft/file-upload/server/content/files/16078393b63125---davari.pdfIn PDF document text
  • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160816fe07bd01---tilawofulizu.pdfIn PDF document text
  • http://www.polni.si/Images/files/51684281050.pdfIn PDF document text
  • https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/d811a3e76fd03860d4cfc57779c4fffe/741195632.pdfIn PDF document text
  • https://4of100churchstreet.com/assets/media/files/82364127735.pdfIn PDF document text
  • http://racecross.com/upload/edito_fckeditor/file/kezuzix.pdfIn PDF document text
  • http://landonintergroup.com/ckfinder/userfiles/files/noliwa.pdfIn PDF document text
  • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075419edc2ab---44216271594.pdfIn PDF document text
  • http://simonide.org/userfiles/file/82315503475.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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