Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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 http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/uerpukiof8o7v5qrbnib0dpu55/50723031072.pdf In PDF document text

  • http://firewheels.pe/userfiles/file/veviponazusuj.pdfIn PDF document text
  • https://www.whoamiandwhyamihere.com/ckfinder/userfiles/files/308872137.pdfIn PDF document text
  • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/782ee1fabec372dbfdd23e473ad31fe5/fejejowifokifetixura.pdfIn PDF document text
  • https://marcuspietrek.de/MARCUS/files/file/14245889086.pdfIn PDF document text
  • http://patanjali.zohukum.com/ckfinder/userfiles/files/8713772431.pdfIn PDF document text
  • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137a8cc3b105---1819401165.pdfIn PDF document text
  • https://firstview.christoff-design.com/files/18706523570.pdfIn PDF document text
  • http://form4concrete.ru/pics/cont/file/61209512240.pdfIn PDF document text
  • http://brezov-gaj.si/uporabnik/file/50488189628.pdfIn PDF document text
  • http://abpjse.news-read.com/upload/files/7340504358.pdfIn PDF document text
  • http://www.39koratmachinery.com/file_upload/files/47049315295.pdfIn PDF document text
  • http://nerezove-kuchyne.cz/UserFiles/File/83777578611.pdfIn PDF document text
  • https://mtmhomeschool4art.com/mycms/uploadedimages/editorUploadedImages/file/xuxenugajo.pdfIn PDF document text
  • https://epiphanych.com/images/file/86542222370.pdfIn PDF document text
  • http://eluvial.com/sites/all/sites/eluvial.com/files/jatedinunizeguwawo.pdfIn PDF document text
  • http://izumrud38.com/ckfinder/userfiles/files/67519452875.pdfIn PDF document text
  • http://oawebserver.com/piceditor/file/sukusoverovegefiramebas.pdfIn PDF document text
  • https://sapporopools.com/contents/files/vowoni.pdfIn PDF document text
  • https://onlinendttraining.net/files/71057772791.pdfIn PDF document text
  • http://runwellconsulting.eu/file/file/39949025142.pdfIn PDF document text
  • http://bk-plus.at/userfiles/files/mejetuputoxorew.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=one+ui+latest+versionPDF link annotation
  • 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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