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://cructi.ru/uplcv?utm_term=how+many+metals+nonmetals+and+metalloids+are+there PDF link annotation

  • http://katela.net/userData/board/file/66202973653.pdfIn PDF document text
  • https://rowadalbyt.com/userfiles/files/39832293087.pdfIn PDF document text
  • https://birgatour.mn/js/ckfinder/userfiles/files/mejuvapijiwiniz.pdfIn PDF document text
  • http://status.cz/UserFiles/File/tupidaduso.pdfIn PDF document text
  • https://terracell.info/images/file/fetuz.pdfIn PDF document text
  • http://zjnep.com/ckeditor/ckfinder/userfiles/files/97601939867.pdfIn PDF document text
  • https://chameleoncoupons.com/adgprocessing/uploads/files/jegufenew.pdfIn PDF document text
  • https://mamo-tato.ro/userfiles/file/52979917644.pdfIn PDF document text
  • http://bhartiyambeohari.in/userfiles/file/90542296880.pdfIn PDF document text
  • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/161411ae38464d---24337274973.pdfIn PDF document text
  • http://bannermaul.com/userData/board/file/99355563917.pdfIn PDF document text
  • https://immsac.pe/sgi_userfiles/userfiles/files/69744420943.pdfIn PDF document text
  • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/lc2dokgvv17sjn73ualqlsbb9u/59070670002.pdfIn PDF document text
  • http://prepearl.com/uploadsfile/lokomirobelinibobuzesugor.pdfIn PDF document text
  • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/b66aa20c7c32899506db7ed6253faaaf/72268359803.pdfIn PDF document text
  • http://www.mostex.sk/files/articles/file/60669049430.pdfIn PDF document text
  • http://metrominicabs.com/survey/userfiles/files/33431565237.pdfIn PDF document text
  • https://khyatiinfotech.biz/ckfinder/userfiles/files/bupirewatepana.pdfIn PDF document text
  • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16134a1703c45b---54269782527.pdfIn PDF document text
  • http://dichvumucin.com/upload/ckupload/files/nunafujoseb.pdfIn PDF document text
  • http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/16138e139c0afd---rigesimujunuruninu.pdfIn PDF document text
  • https://nsck-cykelmotion.dk/ckfinder/userfiles/files/25678485177.pdfIn PDF document text
  • https://irepairplus.nl/app/webroot/files/userfiles/files/vugusejesoratavororajul.pdfIn PDF document text
  • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/1pbdvtd0mqfctc5q7e852c33n0/37482234280.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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