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://infrive.ru/uplcv?utm_term=free+primary+4+science+worksheets PDF link annotation

  • https://h1t-url12shio-turbo.com/contents//files/34229199194.pdfIn PDF document text
  • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/161285cf6567e6---lunozevokojekanozivele.pdfIn PDF document text
  • https://autosaloncenter.com/uploads/files/70508760957.pdfIn PDF document text
  • http://cpils.com/userfiles/file/77847357442.pdfIn PDF document text
  • https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/mnqfhkijri6fn5vjflaeur3dc0/fezepesivutemad.pdfIn PDF document text
  • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160bd3058ac5c1---69539849732.pdfIn PDF document text
  • https://dancleland.com/img/upload/file/22217678059.pdfIn PDF document text
  • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc15337e30b---kelififinipowofidoj.pdfIn PDF document text
  • http://carolstoecker.com/clients/c/c6/c60e280709801842a26e47e23f21f170/File/vujixape.pdfIn PDF document text
  • https://nibrasimansch.com/userfiles/files/jutasijifivot.pdfIn PDF document text
  • https://instalacje-elektryczne.net/ckfinder/userfiles/files/pepojamivugalefu.pdfIn PDF document text
  • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/5c13f2275cb919cfda669634e56f249f/wubulazobeviw.pdfIn PDF document text
  • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606c82bdd4862---30023389932.pdfIn PDF document text
  • https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/6ffb7742a37ce2558e873398623d3834/88189472991.pdfIn PDF document text
  • http://wienbildarchiv.com/upload_files/files/kepinefivareduzitip.pdfIn PDF document text
  • https://accesoriosalmayor.com/images/userfiles/file/zilur.pdfIn PDF document text
  • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b31ebb068a9---75419230664.pdfIn PDF document text
  • https://ajwatravel.com/wheelmarine/userfiles/file/38113514074.pdfIn PDF document text
  • https://ridersshop.it/file/gumakebopavugasola.pdfIn PDF document text
  • http://netinflux.net/userfiles/file/33011583891.pdfIn PDF document text
  • https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/f5260a2df56e5d7cbe05f93c7b0dcca8/61364099495.pdfIn PDF document text
  • https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/f9eoe8ng2dpfokmn4elh5vabgc/74089385756.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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