Malicious PDF — malware analysis report

Heuristics 9

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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 http://nassagroup.org/app/webroot/js/ckfinder/userfiles/files/92770529444.pdf In PDF document text

  • http://vipdiler.ru/files/file/70839277992.pdfIn PDF document text
  • https://die-elke.de/cms/elke_page_files/file/62369092077.pdfIn PDF document text
  • https://markyatirim.com/resimler/files/lijaguzunobagafekik.pdfIn PDF document text
  • https://atputasbaze.lv/images/userfiles/files/tanawovogodefipowa.pdfIn PDF document text
  • http://yalcinsezer.com/upload/ckfinder/files/61786744726.pdfIn PDF document text
  • https://vanphongphamhienluong.com/upload/files/pafas.pdfIn PDF document text
  • https://abouelhoulgroup.com/userfiles/files/kosobofakuzopibuguli.pdfIn PDF document text
  • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/60f18b96cf51b80a059f3b68ce0a373e/18822805124.pdfIn PDF document text
  • http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1613b7841ed67b---vefas.pdfIn PDF document text
  • http://j-club.eu/userfiles/file/sabamefegireduvurobadaxe.pdfIn PDF document text
  • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614079cb66aeb---voxulivuzi.pdfIn PDF document text
  • http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614886301494e---rawatugoxexelavopetirijux.pdfIn PDF document text
  • https://datatech-int.com/userfiles/file/rixevasutabuja.pdfIn PDF document text
  • http://globalroomplus.com/bot/ckfinder/uf/files/pukapas.pdfIn PDF document text
  • https://laetitiabernard.fr/images/file/gewexidedetalisikosisi.pdfIn PDF document text
  • http://dwallacelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/defeb.pdfIn PDF document text
  • http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137e4800eab5---sidozobapexegoxeka.pdfIn PDF document text
  • http://www.its-dph.cz/admin/fckeditor/editor/userfiles/file/75744689401.pdfIn PDF document text
  • http://anael.fr/fckeditor/userfiles/file/mipalux.pdfIn PDF document text
  • http://hulstcustoms.ru/uploads/files/15132834239.pdfIn PDF document text
  • http://lagrupacio.cat/file/88153397797.pdfIn PDF document text
  • http://www.bash.cl/media/file/dasizuselariniselopun.pdfIn PDF document text
  • http://mirai-kankyo.com/userfiles/files/11578422250.pdfIn PDF document text
  • http://bigbazar.cz/is/images/FCKeditor/File/sevik.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=chrome+os+download+macPDF link annotation
  • 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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