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
• Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
  Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
• MFA / one-time-code harvesting lure high SE_MFA_LURE
  Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
• 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 http://www.plan.msu.ac.th/ckfinder/userfiles/files/70953899666.pdf In PDF document text

  • http://rayhovietnam.vn/upload/files/tuzififetulufawujomokuta.pdfIn PDF document text
  • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143dc0d07d71---79596457249.pdfIn PDF document text
  • http://upnbkk.com/file_media/file_image/file/vugepomapo.pdfIn PDF document text
  • https://tinhhoaxanh.vn/userfiles/file/debureriviruzu.pdfIn PDF document text
  • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b9cad9824b---492521733.pdfIn PDF document text
  • http://secoinblock.com/upload/files/96178758382.pdfIn PDF document text
  • http://saraya-shop.ru/upload/files/2810767265.pdfIn PDF document text
  • http://xingzhongjing.com/userfiles/file/20210911030732_821684301.pdfIn PDF document text
  • http://bellamy.tw/uploads/files/202109011152456631.pdfIn PDF document text
  • http://getsolarnj.com/userfiles/file/63620321694.pdfIn PDF document text
  • http://audiohrestomatiya.ru/content/file/tonugimeba.pdfIn PDF document text
  • http://gerastar.com/userfiles/file/6048860641.pdfIn PDF document text
  • http://danieldesignpro.com/userfiles/22409278132.pdfIn PDF document text
  • http://rsti.biz/files/fck/file/werumanepimomakek.pdfIn PDF document text
  • http://ecovn.vn/uploads/news_file/33110830087.pdfIn PDF document text
  • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138c1998575a---xirotine.pdfIn PDF document text
  • http://gps-tw.com/CKEdit/upload/files/79679507905.pdfIn PDF document text
  • http://agapetown.net/ckfinder/userfiles/files/vetinigejepozutejikile.pdfIn PDF document text
  • http://ccforum.kr/uploads/file/1631505339.pdfIn PDF document text
  • https://cuichi177.com/uploads/files/202109061000067631.pdfIn PDF document text
  • http://praguynakorn.com/praguynakorn/picture/datapro/files/batuwoluraxulesupazirajim.pdfIn PDF document text
  • http://gmart-express.com/demo/uploadpic/file/31082379351.pdfIn PDF document text
  • http://futsalcb.cz/picture/vtextu/file/98200367863.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=hack+instagram+password+no+human+verificationPDF 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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