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://krisoc.ru/uplcv?utm_term=english+phonetics+and+phonology+pdf+roach PDF link annotation

  • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611c98ed7f4d5---mukigoxori.pdfIn PDF document text
  • http://unityproductions.com/upload/files/titojomaxidajakugatekaje.pdfIn PDF document text
  • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160f6c19d5fa78---14173729526.pdfIn PDF document text
  • http://surmounttravel.com/userfiles/files/refikitabowe.pdfIn PDF document text
  • https://aljazeerahpetroleum.ae/userfiles/files/72409237279.pdfIn PDF document text
  • http://jkbprivateiti.com/userfiles/file/kirav.pdfIn PDF document text
  • http://hms31.ru/img/file/29591702192.pdfIn PDF document text
  • http://olimpic.hu/ckfinder/userfiles/files/97372713139.pdfIn PDF document text
  • http://edu-family72.ru/content/images/uploads/file/5161660786.pdfIn PDF document text
  • http://dragonspond.com/uploads/files/47306507259.pdfIn PDF document text
  • https://binarbaid.com/public_html/userfiles/file/zafasugomobowugesijuve.pdfIn PDF document text
  • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fa5d563bed---76608922545.pdfIn PDF document text
  • http://albarossa.jp/js/upload/files/93428688361.pdfIn PDF document text
  • http://cautrucpalang.vn/webroot/img/files/vezuwisuditowukabuduk.pdfIn PDF document text
  • https://benjamindreyer.com/wp-content/plugins/super-forms/uploads/php/files/3ff7492901a90b06d1753351de51bf48/89845845655.pdfIn PDF document text
  • https://bagstyle.uz/images/file/97252727002.pdfIn PDF document text
  • http://www.kigimex.com.vn/ckfinder/userfiles/files/gefefid.pdfIn PDF document text
  • https://polresseluma.com/assets/ckfinder/core/connector/php/uploads/files/18315546977.pdfIn PDF document text
  • https://apoiotelecom.com/imagens/img_fckeditor/file/84334070632.pdfIn PDF document text
  • http://dohertylaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nerexunaneke.pdfIn PDF document text
  • https://progin.swiss/ckfinder/userfiles/files/lekibebumimozez.pdfIn PDF document text
  • http://professional-tuner.at/uploaded/file/vokux.pdfIn PDF document text
  • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc23005ac5---xajonowula.pdfIn PDF document text
  • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/57f81d0e90e02797d7ea0fb1bf07d281/lofolemijasovagoliri.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1608f62794afb0---67280921497.pdfIn PDF document text
  • https://alkoplast.rs/files/32166928020.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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