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.
• 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 https://archism.ru/uplcv?utm_term=read+cbz+on+android PDF link annotation

  • http://gsxr.hu/userfiles/file/2671388394.pdfIn PDF document text
  • http://aotem.com/data/home/qxu1780220113/htdocs/uploadfile/files/65301603702.pdfIn PDF document text
  • http://nataliashishkina.com/userfiles/file/74860477098.pdfIn PDF document text
  • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613229dc3ecdb---67231902412.pdfIn PDF document text
  • http://qwerty.pl/_data/file/felekogibu.pdfIn PDF document text
  • https://hse.tw/upload/file/ditakenape.pdfIn PDF document text
  • https://christianbelieversmatrimony.com/web/christiansbelieversmatrimony/photos/ckeditor/files/barakefijefigipaka.pdfIn PDF document text
  • http://gayaarchi.com/userfiles/file/20210906190524.pdfIn PDF document text
  • https://tahuacoop.com/cms_gpadmin2015/sgi_userfiles/userfiles/files/fimarejefigaji.pdfIn PDF document text
  • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/95397966f6811e8f9e189d4d4a7617a0/5138817242.pdfIn PDF document text
  • http://yucehukuk.com/resimler/files/77163137214.pdfIn PDF document text
  • http://gardensyellowcab.com/admin/images/file/19188950002.pdfIn PDF document text
  • http://sumisaedu.com/FileData/ckfinder/files/20210904_861E8350C639BEB4.pdfIn PDF document text
  • https://penmypoem.com/new/admin/uploadfiles/file/81353464119.pdfIn PDF document text
  • http://szerecsengyogyszertar.hu/editor_up/56984816700.pdfIn PDF document text
  • http://nguyenphat.com/public/default/ckeditor/files/suputodipudajagegevin.pdfIn PDF document text
  • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/q2tj6lqmg67291en85u4eojftb/siganunedetinidomivav.pdfIn PDF document text
  • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613ad7c42615b---gekowixakofudesumusisanan.pdfIn PDF document text
  • https://buildingexpertsdirectory.com/ckfinder/userfiles/files/pubawekozudu.pdfIn PDF document text
  • https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac4b4b3893---zozeviz.pdfIn PDF document text
  • http://fratellilongoni.com/userfiles/files/94917277971.pdfIn PDF document text
  • https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/987f04fa8e7812d93ab47460b36fd2e5/vodozabip.pdfIn PDF document text
  • https://sausalito.com/wysiwygfiles/file/53722435605.pdfIn PDF document text
  • https://goez1.com/10005001208290177/ckfinder/userfiles/files/fujigoxadomuv.pdfIn PDF document text
  • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c1478be5bd---65748561288.pdfIn PDF document text
  • http://cluster006.ovh.net/~greeters/namur/ckfinder/userfiles/files/25602387798.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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