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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://smidgel.ru/uplcv?utm_term=how+to+allow+apps+to+run+in+the+background PDF link annotation

  • http://alfatreyd-mebel.ru/archive/images/file/90802600096.pdfIn PDF document text
  • http://jinistudy.com/_UploadFile/Images/file/71723346124.pdfIn PDF document text
  • http://fqcycpa.com/jingkelun/userfiles/files/20210908124952.pdfIn PDF document text
  • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/91513048b6495bd4891abcd29dfdf9de/togixafazidag.pdfIn PDF document text
  • https://shinaltd.ru/images/file/50758528919.pdfIn PDF document text
  • http://barudan.hk/UploadFile/file/20210905140210430.pdfIn PDF document text
  • https://kltccompany.com/ckfinder/userfiles/files/telilamefoxibelobikonaz.pdfIn PDF document text
  • https://vanrun-it.nl/userfiles/files/gigoxodomagobi.pdfIn PDF document text
  • http://bio-scan.com/userfiles/file/89027546326.pdfIn PDF document text
  • https://leonardscopysystems.com/home/leonards/public_html/ckfinder/userfiles/files/22121692152.pdfIn PDF document text
  • http://lerucherdesanges.fr/userfiles/file/47261276499.pdfIn PDF document text
  • http://sinoscaform.com/upload/ckimg/files/202109141417334968.pdfIn PDF document text
  • https://xn--90aoja6ahg5ds.xn--p1ai/uploads/files/58954505275.pdfIn PDF document text
  • https://lensprovn.com/ckfinder/userfiles/files/larodomodopabasepalubon.pdfIn PDF document text
  • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/80f429e22e13efa6421a7f35e257b1fa/49007871163.pdfIn PDF document text
  • https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd8273bb4f---farowumerabaw.pdfIn PDF document text
  • http://massarentearchitettura.com/userfiles/files/mogigi.pdfIn PDF document text
  • http://juditphotography.com/picture/userfiles/file/dexor.pdfIn PDF document text
  • https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140194412b9f---78413042136.pdfIn PDF document text
  • http://xn--80aer5aza.xn--19-kmcm3c.xn--p1ai/ckfinder/userfiles/files/21734651387.pdfIn PDF document text
  • https://www.colegiodomus.com.br/js/ckfinder/userfiles/files/34597440461.pdfIn PDF document text
  • https://jurad.eu/files/file/77730293690.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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