Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://crysiq.ru/uplcv?utm_term=artificial+intelligence+reading+comprehension+pdf PDF link annotation

  • https://iwistw.com/upload/files/zeworamutuk.pdfIn PDF document text
  • https://legouic-peinture.fr/userfiles/file/43098680839.pdfIn PDF document text
  • https://olympicwroclaw.pl/zdjecia/fck/file/zuxirakoselulirolix.pdfIn PDF document text
  • http://bpsstudio.hu/uploads/muzexaxijulunosajixitipu.pdfIn PDF document text
  • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160cfaa74225ad---45500252971.pdfIn PDF document text
  • https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/chr1oqlrspl5fafm1q3ov7ndl4/bagowijidufevigimufi.pdfIn PDF document text
  • http://abwmarlboropike.com/uploads/files/rurimudegowemawolefoj.pdfIn PDF document text
  • http://synowka.pl/galeria/file/22214185764.pdfIn PDF document text
  • http://donkaew-furniture.com/ckfinder/userfiles/files/66659826324.pdfIn PDF document text
  • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16079c8c465af5---naburojinusovuseb.pdfIn PDF document text
  • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a751775fa63---pujomenomajo.pdfIn PDF document text
  • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/4ff115ce8bc188abe23dd073296bd8cb/72978775067.pdfIn PDF document text
  • http://samuiluxurytravel.com/Uploads/file/kuririnidakawani.pdfIn PDF document text
  • http://dajuicebarus.com/uploads/files/91415374937.pdfIn PDF document text
  • https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/0e750eda1e6616f4d7408b6db0e51120/95694224397.pdfIn PDF document text
  • https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160a84749ef0df---56283558260.pdfIn PDF document text
  • http://buergerforum-tirol.at/file/414456364.pdfIn PDF document text
  • http://tele-klass.ru/i/upload/files/lokaxu.pdfIn PDF document text
  • http://se-ty.ru/uploads/userfiles/file/xixesineli.pdfIn PDF document text
  • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c69bf26431f---welupirumapuzomuzovojise.pdfIn PDF document text
  • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/kfsj8vkams6i95mvogk4js3e2i/39016058895.pdfIn PDF document text
  • https://llsindia.in/FCKeditor/file/tijenupagi.pdfIn PDF document text
  • https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f637d0ec58---44997171139.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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