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
• 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
• 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://synerhu.ru/uplcv?utm_term=free+robux+without+doing+anything+2021 PDF link annotation

  • https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/84e83f454dfa6854a5234eafb15d159f/87517525644.pdfIn PDF document text
  • http://sistarelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/39457873877.pdfIn PDF document text
  • https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138fcdac3d46---75639317146.pdfIn PDF document text
  • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/1aa91904a5cf8bf8f62180b478a5463e/50019147750.pdfIn PDF document text
  • http://fratellibeninca.com/images/file/62226124150.pdfIn PDF document text
  • http://ergakiland.ru/files/files/58201180722.pdfIn PDF document text
  • http://kaupa.cz/userfiles/file/xudugum.pdfIn PDF document text
  • https://bankubezpieczen.pl/userfiles/file/92837164345.pdfIn PDF document text
  • http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/9tpb1ne3v3p7ep5tt4h8po5f3o/16269749799.pdfIn PDF document text
  • http://ckud.handysociality.com/upload/files/zobobidalaxixetolukix.pdfIn PDF document text
  • http://naoshima-habitant.com/images/blog/file/53457382029.pdfIn PDF document text
  • http://cofetariafraguta.ro/UserFiles/file/29626284853.pdfIn PDF document text
  • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613b64398dcc1---jedapo.pdfIn PDF document text
  • http://mgrima.com/files/file/67745113327.pdfIn PDF document text
  • https://bunianco.com/other_files/File/gakidexurirejivo.pdfIn PDF document text
  • https://markiza-trade.ru/admin/ckfinder/userfiles/files/20420384426.pdfIn PDF document text
  • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137f1b78141f---20465621624.pdfIn PDF document text
  • http://serting.eu/userfiles/files/55273562153.pdfIn PDF document text
  • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/b641003fc5bced5b8c0ca97f91b5514a/90435900416.pdfIn PDF document text
  • https://jaukiaplinka.lt/ckfinder/userfiles/files/18797172029.pdfIn PDF document text
  • https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/856bc216c79eb95d163a9f19b1c45520/66946480789.pdfIn PDF document text
  • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16136a91a6c0d6---tuwiseselerekogozukijilev.pdfIn PDF document text
  • http://blossomtour.net/FileData/ckfinder/files/20210909_310FADA4A8F2804D.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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