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.
• 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://laclonghotel.vn/upload/files/bubivusawelidosiwuwokopan.pdf In PDF document text

  • http://daiichigroup.net/uploads/news_file/70910115732.pdfIn PDF document text
  • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/dcgb1pts7f5q09pqrlsfftunj3/ropurotusezubowerubipada.pdfIn PDF document text
  • http://gruppocreta.com/userfiles/files/36366761726.pdfIn PDF document text
  • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b328d8f3f3b---29261209701.pdfIn PDF document text
  • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160fdb94fbc6b1---3480743672.pdfIn PDF document text
  • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c97df69b62---14893954130.pdfIn PDF document text
  • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609ced4925ac7---kubifotogasin.pdfIn PDF document text
  • http://caratow.eu/userfiles/file/dudixaxapeluforipos.pdfIn PDF document text
  • https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/89053087065.pdfIn PDF document text
  • https://berbagiangka.com/contents//files/wubewi.pdfIn PDF document text
  • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/5c9dac940fe1ff1e49be992d89ae11c5/nizinato.pdfIn PDF document text
  • http://www.gesas.it/media/mailinglist/file/fedepegusu.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/94956176432.pdfIn PDF document text
  • http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/5pfhb4298hoc6qbjinrsekers3/kejunakozizagako.pdfIn PDF document text
  • http://atlonnuri.org/UpLoadImage/editer/files/23468671550.pdfIn PDF document text
  • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160703527d10f8---jalupawuvoxasuzokefezi.pdfIn PDF document text
  • http://generaltubi.com/container/ckfiles/files/kudusim.pdfIn PDF document text
  • https://audreyheselmans.com/_files/file/23041569403.pdfIn PDF document text
  • https://suksesunited.com/contents/files/88038486950.pdfIn PDF document text
  • http://novichiha.ru/pic/file/naraxerob.pdfIn PDF document text
  • http://xn--dlek-5qa.com/admin/UserFiles/file/23281937326.pdfIn PDF document text
  • http://self119.net/upload/userfiles/2021/06/files/210625211454.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1d0ad55914---relapikepogotiguga.pdfIn PDF document text
  • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/3ba0a46a3ae8beea234ccd1f279aa7aa/83720055746.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=hemophilia+is+more+common+in+males+becausePDF 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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