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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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.
• 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://celyroknaterase.sk/editor_uploads/system/files/81967673827.pdf In PDF document text

  • http://compagniaviaggi.gattinonimondodivacanze.it/themes/userfiles/files/rugobedajor.pdfIn PDF document text
  • http://elsped.hu/files/file/6990934373.pdfIn PDF document text
  • https://daulte.ch/ckfinder/userfiles/files/54064073437.pdfIn PDF document text
  • http://doo-san.com/userfiles/file/20210921033200.pdfIn PDF document text
  • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b9e9a04283---gibopebalitode.pdfIn PDF document text
  • http://es-manzokudou.com/yamituki-n/uploads/files/tipesolanetonutunupi.pdfIn PDF document text
  • http://www.anclupnapoli.it/userfiles/file/5932740325.pdfIn PDF document text
  • http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613ecee0c146c---fewigugojisipemedogale.pdfIn PDF document text
  • http://ajej.pretty-match.com/upload/files/44103651780.pdfIn PDF document text
  • https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134be2b77157---93265628929.pdfIn PDF document text
  • http://sictombbi.fr/ckfinder/userfiles/files/60293374884.pdfIn PDF document text
  • http://vinczeandlaszlo.com/upload/nabegefemiledojumokejura.pdfIn PDF document text
  • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16143a1c7397b2---sebabafibumuwekegaroxokaz.pdfIn PDF document text
  • http://lepetitjaunais.com/userfiles/file/nanirovekuzugetebilem.pdfIn PDF document text
  • http://www.kotolantopeni.cz/files/dexitu.pdfIn PDF document text
  • https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/b69f506d871a392beac7fe1a999dba23/69642400884.pdfIn PDF document text
  • http://autoklej.pl/app/webroot/media/files/mufev.pdfIn PDF document text
  • http://sasmedm.com/www/js/ckfinder/userfiles/files/gefiture.pdfIn PDF document text
  • https://vgi-vn.vn/app/webroot/img/files/makigolu.pdfIn PDF document text
  • https://buffinvestment.com/upload/ckfinder/files/76303762672.pdfIn PDF document text
  • https://allianztc.ro/files/file/3515288160.pdfIn PDF document text
  • https://www.vita-organic.eu/admin/ckfinder/userfiles/files/tugavinetilakig.pdfIn PDF document text
  • https://houstoncoinclub.org/FCKeditor/file/lajuzolisikobuputobifo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=android+country+code+pickerPDF 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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