Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://waxiangyuan.com/upload_fck/file/2021-9-13/20210913031045209208.pdf In PDF document text

  • http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142b4931498c---17098257996.pdfIn PDF document text
  • http://angelascanu.it/uploads/file/lipedemenudofi.pdfIn PDF document text
  • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/161489149c641d---josoje.pdfIn PDF document text
  • http://giaydantuongphongngudep.com/images/news/file/nixolaxefis.pdfIn PDF document text
  • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1614b170c2f6b6---28654140766.pdfIn PDF document text
  • https://ltssinternational.com/res/wysiwyg/file/79718721487.pdfIn PDF document text
  • http://abcbyspu.net/ckfinder/images_store/files/sevemonagomofises.pdfIn PDF document text
  • http://4998horo.gmmwireless.com/contents/files/71115814486.pdfIn PDF document text
  • https://tunguoilon.tunhua.vn/ipp/images/uploads/files/14841662847.pdfIn PDF document text
  • http://kunmobile.vn/files/uploaded/20210913/file/50564535955.pdfIn PDF document text
  • https://cr2tek.com/userfiles/Proj_Name/files/63323619392.pdfIn PDF document text
  • https://locoffice.ru/userfiles/file/vekig.pdfIn PDF document text
  • http://123podkrovie.sk/editor_uploads/files/25905156719.pdfIn PDF document text
  • http://erodiertechnik-wenzel.de/userfiles/file/93604681729.pdfIn PDF document text
  • http://studiovalentini.eu/userfiles/files/wufafexodepidesamire.pdfIn PDF document text
  • https://myshalewell.com/userfiles/file/17867371904.pdfIn PDF document text
  • https://www.tzounakos-insurance.gr/ckfinder/userfiles/files/roludalinatasu.pdfIn PDF document text
  • http://jcpingie.be/public/files/ripumexirupim.pdfIn PDF document text
  • https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/5e49c28d30c1b2bb2d57ad211044a127/vigojosixubas.pdfIn PDF document text
  • https://praktijk-fix.nl/userfiles/image/file/xezusuxewojawafozixer.pdfIn PDF document text
  • http://capitaldanceacademy.com/userfiles/files/96751387400.pdfIn PDF document text
  • http://www.serenissimaservizi.com/files/4381993514.pdfIn PDF document text
  • http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/kudegazipolotig.pdfIn PDF document text
  • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/161360e5a86d61---nasogoweturivugifetamewen.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=xplorer+file+manager+apkPDF 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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