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://chcial.ru/uplcv?utm_term=arnold+ehret+mucusless+diet+healing+system+pdf PDF link annotation

  • http://songhandiban.com/uploadfile/file/2021090614232073499.pdfIn PDF document text
  • http://giayviettri.com/img-ftec/files/nedegapakuvo.pdfIn PDF document text
  • http://biosafety.biz/ckfinder/userfiles/files/88485545729.pdfIn PDF document text
  • http://27derajat.com/assets/ckfinder/core/connector/php/uploads/files/giwepebepiteb.pdfIn PDF document text
  • http://studiofagiani.eu/userfiles/files/topulejolevufito.pdfIn PDF document text
  • http://hrampetraipavlavosstanovlenie.ru/content/images/user/file/65383543092.pdfIn PDF document text
  • http://etepi.pt/js/ckfinder/userfiles/files/zefasikuvobusobi.pdfIn PDF document text
  • http://konberdbio.com/upload/files/majofela.pdfIn PDF document text
  • https://resttour.com/images/userfiles/files/pipiwividosezuxesabib.pdfIn PDF document text
  • http://space-edge.com/upload/files/rafaxidavowas.pdfIn PDF document text
  • http://honeycontacts.com/uploades/userfiles/file/84867329879.pdfIn PDF document text
  • https://specializzati.tecnaevolution.it/dataload/ckupload/xowelikagajajovo.pdfIn PDF document text
  • https://www.solucionaesp.com/ckfinder/userfiles/files/73830094832.pdfIn PDF document text
  • https://floresdeserrezuela.com/aym_image/files/lurajuv.pdfIn PDF document text
  • https://pui-vital.ro/msg_media/file/35649771894.pdfIn PDF document text
  • http://gu-bo.cn/uploads/files/putizomapabekeji.pdfIn PDF document text
  • http://kes.org/upload/editor/files/bizaxefewinane.pdfIn PDF document text
  • https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16134fdb4dd77d---24246150126.pdfIn PDF document text
  • http://3t-t.com/User_File/UpFile/file/20210901105017_NTI1ODAwMDMwNzg=.pdfIn PDF document text
  • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e78221e26b---23053197747.pdfIn PDF document text
  • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/584a9abf140d3cb730df8750bddcee91/92069430735.pdfIn PDF document text
  • http://gurolmumcu.com/userfiles/file/52331045678.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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