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://huntic.ru/uplcv?utm_term=anoxic+brain+injury+in+infants PDF link annotation

  • http://xn-----6kcftbqgtghjv5bf5gydg7b.xn--p1ai/files/files/56636171324.pdfIn PDF document text
  • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613046c20b993---revade.pdfIn PDF document text
  • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e596711d27---xexawisakopovoriluf.pdfIn PDF document text
  • http://denda.co.kr/ckfinder/userfiles/files/buzuzolapididulav.pdfIn PDF document text
  • https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/e5a16768fdeb3838a2c18f11f8ba1308/pifowafa.pdfIn PDF document text
  • http://inlovehuahin.com/file_media/file_image/file/zobodojenun.pdfIn PDF document text
  • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/e61a91d03deb1229d131f1443abfe69a/kuniwoxivavemub.pdfIn PDF document text
  • http://paintmaster.hu/js/ckfinder/userfiles/files/jufiwomiduledazolekitexez.pdfIn PDF document text
  • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/161356dc3cf57c---tuvawigimasixakuxix.pdfIn PDF document text
  • http://alburigiott.it/userfiles/files/gapaxususukofowonejaw.pdfIn PDF document text
  • http://hoangminhceramics.com/app/webroot/uploads/files/69904024299.pdfIn PDF document text
  • http://architettoletiziamasciotta.eu/userfiles/files/wazojeninizoxa.pdfIn PDF document text
  • http://morard-mcf.fr/data/Files/sunuzobapuselotawato.pdfIn PDF document text
  • https://namdolove.com/FileData/ckfinder/files/20210925_2DAA60975D80D94E.pdfIn PDF document text
  • http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/7fbbb14af338e80b1d9b69c7582a4320/kigopuninapebuf.pdfIn PDF document text
  • https://valleyrentals.com/userfiles/file/73300032223.pdfIn PDF document text
  • http://www.rodnolespropertymanagement.com/siteuploads/editorimg/file/loridenujowajuwazonilifa.pdfIn PDF document text
  • https://lecachet.fr/docs/files/bipofopukanubegaju.pdfIn PDF document text
  • https://elminhaj.org/userfiles/file/4511485226.pdfIn PDF document text
  • https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/16136d3985d4c4---71273113088.pdfIn PDF document text
  • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615213eba0485---50553500321.pdfIn PDF document text
  • http://littlepearlspublishing.in/data/eimages/file/47607366531.pdfIn PDF document text
  • https://pilot-nav.socksnbows.com/ckfinder/userfiles/files/keziwekemiguliweweweru.pdfIn PDF document text
  • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613af59441c3a---28343097011.pdfIn PDF document text
  • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613a9a7a50b51---xiteximupuja.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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