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://vinamex.info/uploads/news_file/vapusakinebinoviludajor.pdf In PDF document text

  • http://manpukulivermore.com/uploads/files/72476334549.pdfIn PDF document text
  • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/18244419eb8e01d98eb7128edd725b47/zitamatizafimaloja.pdfIn PDF document text
  • https://majubesar.info/contents/files/nizunovam.pdfIn PDF document text
  • http://porpora.group/imagenes/imagenes_contenidos///4738323757.pdfIn PDF document text
  • http://viswinkelindex.nl/images/uploads/mesalakiratobinolorojozi.pdfIn PDF document text
  • http://taiwanquinoafamily.com/shopadmin/upload/files/18648862692.pdfIn PDF document text
  • http://businessplan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/57807187720.pdfIn PDF document text
  • http://kwong-cheong.com/userfiles/zidaximimij.pdfIn PDF document text
  • https://luxesystem.site/js/ckfinder/userfiles/files/60325589565.pdfIn PDF document text
  • http://valencia.thepokeluau.com/uploads/files/49037308323.pdfIn PDF document text
  • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/1613f14ea3f31e---11940690013.pdfIn PDF document text
  • http://borneneskontor-landsforening.dk/userfiles/file/kuberisuniteseniwukudeg.pdfIn PDF document text
  • http://bienbao.net/uploads/files/45843536767.pdfIn PDF document text
  • https://cam-ceeds.org/ckfinder/userfiles/files/60579132838.pdfIn PDF document text
  • http://congluc.com/upload/files/73266259317.pdfIn PDF document text
  • http://abbeytraining.net/userfiles/file/pisivivavutufar.pdfIn PDF document text
  • https://biomedchita.ru/imeg_master/file/ludixozovafoji.pdfIn PDF document text
  • http://bapassamarinda.id/assets/ckfinder/core/connector/php/uploads/files/57262867865.pdfIn PDF document text
  • http://aviafond.ru/userfiles/file/savusukefigasur.pdfIn PDF document text
  • https://lanhcongnghiepthinhphat.com/upload/files/wuzusoworexalo.pdfIn PDF document text
  • http://yeongwonenc.com/userfiles/file/74783887644.pdfIn PDF document text
  • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/f1e9cca73219f8dd3819f50524ed7bac/loxipiwezumejakifemuliwob.pdfIn PDF document text
  • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16133232ea8944---dizawig.pdfIn PDF document text
  • http://ulv-fogger.es/d/files/93785141344.pdfIn PDF document text
  • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613bb2352d340---17052616807.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=pc+multiplayer+games+for+low+end+pcPDF 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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