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 https://queure.ru/uplcv?utm_term=genetic+engineering+research+paper+pdf PDF link annotation

  • http://portalcom-b2b.es/img/user///file/_0215216001620682662.pdfIn PDF document text
  • http://xn----9sbbnbtte4cyg.xn--p1ai/ckfinder/userfiles/files/lujijigutewof.pdfIn PDF document text
  • http://xn--80adpfaaeictf0c6c7i.xn--p1ai/public/file/bibam.pdfIn PDF document text
  • https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/07e00ab48d557cd3565984a8ec510ff5/38551671033.pdfIn PDF document text
  • http://www.nena-artspace.com/ckfinder/userfiles/files/baginuwowusige.pdfIn PDF document text
  • https://khyatiinfotech.biz/ckfinder/userfiles/files/roxivu.pdfIn PDF document text
  • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fef0fd1447---95705405578.pdfIn PDF document text
  • https://kueapem.com/contents//files/21657081839.pdfIn PDF document text
  • http://peak-experience-europe.com/images/blog//file/peporetogemi.pdfIn PDF document text
  • http://akwarella.pl/user_uploads/file/47578868909.pdfIn PDF document text
  • https://digireg.cn/upload/75503371011.pdfIn PDF document text
  • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b88a8abdc47---46890409628.pdfIn PDF document text
  • http://shiinamotors.com/js/upload/files/rewufifavedefopezifev.pdfIn PDF document text
  • http://www.rosabrockenhaus.ch/ckfinder/userfiles/files/faluze.pdfIn PDF document text
  • http://groupkaishan.com/d/files/ruviposolomusopipib.pdfIn PDF document text
  • http://evergladesharvesting.com/ckfinder/userfiles/files/misaxil.pdfIn PDF document text
  • https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/zilonakopozevejus.pdfIn PDF document text
  • https://djennebeads.com/nbloom/fckuploads/file/96652484190.pdfIn PDF document text
  • http://plkorea77.com/ckupload/files/kafarimupak.pdfIn PDF document text
  • http://raffaelecavazzoni.com/userfiles/files/dimujimetojufana.pdfIn PDF document text
  • https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/2a861872b1b8ee925a4b3691f42f032b/20192123592.pdfIn PDF document text
  • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609f53077995a---63117162694.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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