Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• MFA / one-time-code harvesting lure high SE_MFA_LURE
  Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
• 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://ku4ysk-9lgp4y.com/contents/files/82222953144.pdf In PDF document text

  • http://gz-theoutfit.com/UploadFiles/FCKeditor/20210909120900.pdfIn PDF document text
  • http://udaybharat.in/ckfinder/userfiles/files/50803083904.pdfIn PDF document text
  • http://nebovsem.ru/app/webroot/files/files/sakagixodut.pdfIn PDF document text
  • https://czus-lukasa.sk/userfiles/file/dexikutegifezuzefanuv.pdfIn PDF document text
  • https://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/fotusesodududigik.pdfIn PDF document text
  • http://mega-gold.com/userfiles/files/borigudevokomofevol.pdfIn PDF document text
  • http://pokwuttibut.com/file_media/file_image/file/ribela.pdfIn PDF document text
  • http://minhanh.com/files/19578658507.pdfIn PDF document text
  • http://gancza.pl/userfiles/file/wifaz.pdfIn PDF document text
  • https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613222e7c8ee4---85843656802.pdfIn PDF document text
  • https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/gqfacdsicatqpjciq796t7ejfn/mezepinuzep.pdfIn PDF document text
  • http://hueide.com/upload/files/7681244920.pdfIn PDF document text
  • http://studiofranzoni.eu/userfiles/files/kewuxurunudanavofivako.pdfIn PDF document text
  • https://natanashoes.com/kingkong/userfiles/files/251779007.pdfIn PDF document text
  • http://box8websites.com/ckfinder/userfiles/files/perovir.pdfIn PDF document text
  • https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/6cab3cae8df46dba51228f16fa2638a9/dabogi.pdfIn PDF document text
  • http://feg.vn/uploads/files/16938147661.pdfIn PDF document text
  • http://host.keraladreamhomes.com/~viswabrahmathach/admin/fckeditor/editor/filemanager/connectors/php/userfiles/file/nokusasefafasapokiboj.pdfIn PDF document text
  • http://hyosangjo.com/userfiles/file/20210903202421.pdfIn PDF document text
  • http://autodilykanka.cz/cmsimple/images/file/lepizelakunabopusonifepo.pdfIn PDF document text
  • http://bennett-legal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lebojipafome.pdfIn PDF document text
  • http://matras-devison.ru/upload/file/joxelelel.pdfIn PDF document text
  • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/751053ca27b9af2e9f1a78a91d05eb8f/85746006977.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=root+net+higgs+dominoPDF link annotation
  • https://www.rt9.rspo.org/ckfinder/userfiles/files/98145434786.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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