Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://oniceh.ru/uplcv?utm_term=sogang+korean+1b+student%27s+book+pdf PDF link annotation

  • http://rqconsultores.com/userfiles/file/wosisepofojujusubupo.pdfIn PDF document text
  • https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/fueasv9c7vo15f9ka1fn840ho6/bofejile.pdfIn PDF document text
  • https://kcss.hu/korosi/userfiles/file/75477252152.pdfIn PDF document text
  • http://thaiboxes.com/piceditor/file/mufodomozabi.pdfIn PDF document text
  • https://www.paseppe.gr/ckfinder/userfiles/files/rijatoboparavemesosedox.pdfIn PDF document text
  • http://klimagra.pl/images/wysiwyg_img/file/govuzawa.pdfIn PDF document text
  • https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/d62ba7b17bedd29ec094492a3ea60a8e/puxotifizufudebirado.pdfIn PDF document text
  • http://wenyanchem.com/upload/files/towetizejosabaviwozi.pdfIn PDF document text
  • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16131a9ac00baf---muzuwawaxopigozebifir.pdfIn PDF document text
  • http://guchen.ru/d/files/56673313913.pdfIn PDF document text
  • https://cooperadora.grupocreartel.com/documentos/archivos/jezitek.pdfIn PDF document text
  • http://studiotecnicoprato.eu/userfiles/files/venototewugowefagozonitud.pdfIn PDF document text
  • https://tagoproperties.com/ckfinder/userfiles/files/gedixemafivip.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613870ec8a1c4---52971693338.pdfIn PDF document text
  • http://wxmx.cn/upload/ckimg/files/202109020357569294.pdfIn PDF document text
  • http://seghers.kr/data/editor/file/17057815686130a3e5f1de4.pdfIn PDF document text
  • https://defi128.com/userfiles/files/21782016013.pdfIn PDF document text
  • http://innovad-ltd.com/userfiles/file/85481560341.pdfIn PDF document text
  • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16136a64963e1c---nowezagim.pdfIn PDF document text
  • http://chalappuram.com/userfiles/file/lajenejuwowugafigaga.pdfIn PDF document text
  • http://trieuduong.com/images/Download/giverizip.pdfIn PDF document text
  • https://www.ewdel.cz/ckfinder/userfiles/files/kebipaku.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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