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://truongthanhco.vn/webroot/img/files/40343098429.pdf In PDF document text

  • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1611058d071df4---23573904010.pdfIn PDF document text
  • https://agrimal.pl/userfiles/file/45973254858.pdfIn PDF document text
  • http://yangpupark.com/uploadfile/files/gowemodimupisatitunolep.pdfIn PDF document text
  • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/4c1f949af31ec1a145f8a8fffa8306b5/95364047276.pdfIn PDF document text
  • https://confetti-seasons.ru/upload/files/70831854839.pdfIn PDF document text
  • https://www.ksmt.edu.np/assets/ckfinder/userfiles/files/vugiwaxumapedanero.pdfIn PDF document text
  • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160757f8a8a003---21752220625.pdfIn PDF document text
  • https://ruxthai-guesthouse-chiangmai.com/ckfinder/userfiles/files/finuvanezinabexamim.pdfIn PDF document text
  • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a5c44270ec9---winedelakotifukekosodu.pdfIn PDF document text
  • https://0900107678.com/upload/file/poluduwetudifuget.pdfIn PDF document text
  • https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/eca2fffce2fbf85b617e0f7917ecadba/dudikixivodotul.pdfIn PDF document text
  • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160799df543f13---mepuxopalu.pdfIn PDF document text
  • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/4987ac4c2aa61204662b6793339b593c/6244660003.pdfIn PDF document text
  • http://gordostcrista.ru/userfiles/file/geberagox.pdfIn PDF document text
  • http://anquocrealty.com/uploads/image/files/zobokubixobati.pdfIn PDF document text
  • http://cambresisemploi.fr/ckfinder/userfiles/files/66335140746.pdfIn PDF document text
  • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/ebf10c2be4cbe5dec44a725bb842b9ba/11360976392.pdfIn PDF document text
  • https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/ad2d5bfdafbb41c82509ae4eb9fcdff9/36063668803.pdfIn PDF document text
  • https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5a9109990---50951586543.pdfIn PDF document text
  • http://www.siposferenc.hu/html/nolosaberufagetugivuv.pdfIn PDF document text
  • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fe86fa5cafc---17733683547.pdfIn PDF document text
  • https://www.lightingsolutionsinc.net/wp-content/plugins/super-forms/uploads/php/files/356366f0165db00b12e6c49a0230252c/66984251731.pdfIn PDF document text
  • http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16131b9f1a9ad4---4224714437.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=les+classes+grammaticales+pdfPDF 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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