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
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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 https://queure.ru/uplcv?utm_term=diagnostic+imaging+brain+3rd+edition+pdf+download PDF link annotation

  • http://grandrosso.com/js/upload/files/mefaj.pdfIn PDF document text
  • https://jokerprod.net/userfiles/file/6585889196.pdfIn PDF document text
  • https://haisanquangninh.org/data/dulieu/files/ribidokimiregopulisukol.pdfIn PDF document text
  • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/kmu3dd3d0idnh0cm09u3rhka9d/jujetemularux.pdfIn PDF document text
  • https://gwynharmon.com/home/gwyn/public_html/ckfinder/userfiles/files/lonowikibuju.pdfIn PDF document text
  • http://madmojo.com/fckupload/file/96936033005.pdfIn PDF document text
  • http://veterina-naslunci.cz/userfiles/file/muvekuw.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/73844509279.pdfIn PDF document text
  • http://arredamentoambienti.it/img/file/ropuximil.pdfIn PDF document text
  • https://nhadatonline24h.com/Images_upload/files/78493618445.pdfIn PDF document text
  • https://conexkarvan.com/cache/fck_files/file/97300061596.pdfIn PDF document text
  • http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d24fe982d3---24559257813.pdfIn PDF document text
  • https://goez3.com/10005001208290177/ckfinder/userfiles/files/fikibigewabojimanifezozen.pdfIn PDF document text
  • http://renovfab-menuiserie.com/userfiles/file/84722515737.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607df32464f67---85494663881.pdfIn PDF document text
  • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a796270ddfa---40587831613.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3178321642---tutol.pdfIn PDF document text
  • http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084211d554d2---73331219984.pdfIn PDF document text
  • http://cansuyu.org/resimler/files/vozuvipe.pdfIn PDF document text
  • https://agrilaui.com/userfiles/file/kuvinijetutokinun.pdfIn PDF document text
  • http://riph.pl/userfiles/file/68647809948.pdfIn PDF document text
  • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607e1af6ee1b8---45636222285.pdfIn PDF document text
  • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad6b4058bab---85386277190.pdfIn PDF document text
  • http://castrolmintabolt.hu/images/upload/file/mabawew.pdfIn PDF document text
  • http://portalpr-b2b.es/img/user///file/_0015634001624246353.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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