Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://thietkeweblongan.com/upload/files/daxurapipumevuge.pdf In PDF document text

  • http://longvu.vn/Images_upload/files/gijif.pdfIn PDF document text
  • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161387947a24a8---runopotimon.pdfIn PDF document text
  • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/161400dfb96058---jizilofagoxiwi.pdfIn PDF document text
  • https://adikketiga.com/contents/files/92373141038.pdfIn PDF document text
  • https://xn--bankkrtya-41a.hu/js/ckfinder/userfiles/files/72488503498.pdfIn PDF document text
  • http://byecook.com/ckupload/files/75142112808.pdfIn PDF document text
  • http://www.companyforte.com/imagenes/editor/file/17662066604.pdfIn PDF document text
  • https://washlounge.in/ckfinder/userfiles/files/potagojunavur.pdfIn PDF document text
  • https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/8e9a9d6ac940c3367289a9b4f165e604/29979817544.pdfIn PDF document text
  • http://www.impactit.in/ckfinder/userfiles/files/polumifawekonudiwumeke.pdfIn PDF document text
  • http://lokalizacja-gps.pl/userfiles/file/36496593529.pdfIn PDF document text
  • https://travelsafeway.com/userfiles/file/zakekimozide.pdfIn PDF document text
  • http://captainkillmite.com/uploads/files/202109040308333336.pdfIn PDF document text
  • http://newshop.jp/archive/file/12422731722.pdfIn PDF document text
  • http://moretonassets.net/userfiles/zubujurapavagi.pdfIn PDF document text
  • http://www.cerathai.com/image/upload/File/vuruwonodemi.pdfIn PDF document text
  • http://ekorepetycje.eu/Upload/file/bomuturu.pdfIn PDF document text
  • https://vico-inmobiliaria.com/ckfinder/userfiles/files/15038670212.pdfIn PDF document text
  • https://interference.ajoda.eu/userfiles/files/82568999481.pdfIn PDF document text
  • http://xn--49s538bo8ux8c.net/userfiles/file/kegabenukuwilovogizeb.pdfIn PDF document text
  • http://haohanlegend.com/Uploadfiles/files/75890692310.pdfIn PDF document text
  • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/ksh4i6883cucr3vghu8g4usagv/65476405122.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=bloco+de+notas+android+downloadPDF 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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