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://drafthe.ru/uplcv?utm_term=fifty+shades+of+black+full+movie+free+watch+online PDF link annotation

  • http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16131ab644bac3---vobinizabinokekelabetu.pdfIn PDF document text
  • http://nbkhjc.com/uploads/202109/file/210904004621286276cy6kexalnlta.pdfIn PDF document text
  • http://hefei.chinatupai.com/web/js/ckfinder/userfiles/files/doxovabe.pdfIn PDF document text
  • http://elcampoeco.org/FCKeditor/file/98331822069.pdfIn PDF document text
  • http://fandimnarodaku.cz/upload/file/bakafumebegima.pdfIn PDF document text
  • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613a515a3a392---51663415409.pdfIn PDF document text
  • http://csc-020.com/userfiles/file/20210909045211_xj0aph.pdfIn PDF document text
  • http://premiercontractinginc.com/files/file/28722685103.pdfIn PDF document text
  • http://brkvinc.com/userfiles/file/zumenixedo.pdfIn PDF document text
  • http://hennel.hu/sources/elemek/file/12701456496.pdfIn PDF document text
  • http://hidramaco.com/files/files/buwawelexid.pdfIn PDF document text
  • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1612fc0ff40394---pudalibokumikopane.pdfIn PDF document text
  • http://www.yevres.fr/ckfinder/userfiles/files/misijejupikutij.pdfIn PDF document text
  • http://thewhitmerlawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/57512061095.pdfIn PDF document text
  • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613970d2974bc---86827789813.pdfIn PDF document text
  • http://3sdent.com/upload/files/lizulisub.pdfIn PDF document text
  • http://njbeihang.com/uploadfile/file///2021090314180531.pdfIn PDF document text
  • http://xdata.pl/app/webroot/img/ckf/files/33335748015.pdfIn PDF document text
  • http://cokhihoangvinh.com/uploads/userfiles/file/33422003430.pdfIn PDF document text
  • http://rucodelniza.ru/userfiles/file/lafuni.pdfIn PDF document text
  • http://elateridae.com/images/FCKeditor/file/jazefitifulix.pdfIn PDF document text
  • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/16138c44331503---51692626048.pdfIn PDF document text
  • https://majubesar.com/contents/files/30153620670.pdfIn PDF document text
  • https://ayurmitra.com/files/file/99181964484.pdfIn PDF document text
  • http://husplaza.hu/editor_up/11757012875.pdfIn PDF document text
  • http://theemasternetworker.com/ckfinder/userfiles/files/pizapuwe.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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