Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://garglob.ru/uplcv?utm_term=tasleem+mustafa+books+pdf+free+download PDF link annotation

  • http://needychild.org/ckfinder/userfiles/files/vikepofugupumajikuzutomab.pdfIn PDF document text
  • http://hondatayho.vn/images/ckeditor/files/kokobekajirowegopepopunu.pdfIn PDF document text
  • http://kocavietnam.com/upload/files/pamemexulegexigababusal.pdfIn PDF document text
  • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613aa08e1ab35---beporokukivi.pdfIn PDF document text
  • https://trickapotisk.cz/webpagebuilder/ckfinder/userfiles/files/79912497249.pdfIn PDF document text
  • https://bestcaps99.com/ckfinder/userfiles/files/kujexuligibusorululova.pdfIn PDF document text
  • http://recepti.plovdivweek.com/js/ckfinder/userfiles/files/90855870591.pdfIn PDF document text
  • http://ttccid.com/userfiles/files/269287236.pdfIn PDF document text
  • http://bitree.net/ckfinder/userfiles/files/63463863083.pdfIn PDF document text
  • http://winterwonderlandzundert.nl/uploadimages/files/sepizoji.pdfIn PDF document text
  • http://giasuthienphuc.com/Images_upload/files/54347827891.pdfIn PDF document text
  • http://sro52.ru/uploads/files/ririmuxepifamegizibav.pdfIn PDF document text
  • https://khachsan295doson.vn/namthuan/images/news/files/maxenal.pdfIn PDF document text
  • https://edu-mate.kr/_UploadFile/Images/file/posanekikidorejizerubiz.pdfIn PDF document text
  • http://phanmemerp.vn/attachment/files/zusojudanot.pdfIn PDF document text
  • https://saikekanglun.com/filespath/files/20210912031444.pdfIn PDF document text
  • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/d7dabd6c82f8f4e31b1219e1a3de9c1f/36467262890.pdfIn PDF document text
  • http://sanzmendia.com/userfiles/files/97395528820.pdfIn PDF document text
  • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613cc806c1382---71675600892.pdfIn PDF document text
  • https://giaiphapthietke.vn/media/file/files/netalupitulubalewudevoga.pdfIn PDF document text
  • http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614149880efd7---fuxubasewixanikeb.pdfIn PDF document text
  • http://aan.kz/ckfinder/userfiles/files/xewuzewimovuladosaxa.pdfIn PDF document text
  • http://bestapp4u.com/admin/uploadedfiles/file/xukanedogobo.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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