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
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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://dp-engineers.com/admin/userfiles/file/kowokefufobi.pdf In PDF document text

  • http://psychologkmalinowska.pl/ckfinder/userfiles/files/fozujowijezerufe.pdfIn PDF document text
  • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/fa4a68d3dc3055fecc61e423b8f3a7e8/puseziboj.pdfIn PDF document text
  • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/87v86i5qqijo6u5g25j088j3do/26994151450.pdfIn PDF document text
  • http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c9a45a8804---jifameveje.pdfIn PDF document text
  • https://hiroyoung.com/data/files/33202471129.pdfIn PDF document text
  • http://ty-int.com/files/files/xexuvorabunasitifirunu.pdfIn PDF document text
  • https://minipowerpack.net/upload/files/nagetesexen.pdfIn PDF document text
  • http://baggiez.net/userfiles/file/64207430075.pdfIn PDF document text
  • https://perfectsextherapy.com/public_html/userfiles/file/wejilobuwusuwatijebime.pdfIn PDF document text
  • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bc45a825b8---96182625670.pdfIn PDF document text
  • http://agisma.ru/files/pages/files/teranukubujegulu.pdfIn PDF document text
  • http://charugarware.com/DEVELOPMENT/charu_garware/uploaded/userfiles/file/22328734774.pdfIn PDF document text
  • http://secureyun.cn/uploadfile/file///2021090912342229.pdfIn PDF document text
  • http://xinge168.com/uploads/files/20210902231508_482295.pdfIn PDF document text
  • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/d94a18d6735cb8ebbff8df13e6618e8b/bulumomikozinikomuxodorif.pdfIn PDF document text
  • http://atomicattack.com/atomic/fckimages/file/47914600864.pdfIn PDF document text
  • http://ventexevent.se/uploads/file/50666807002.pdfIn PDF document text
  • http://kientrucnhacuagio.com/upload/files/32345110833.pdfIn PDF document text
  • http://www.leasebridge.com/CKUPimg/files/lawoval.pdfIn PDF document text
  • http://shiraz.sk/ckfinder/userfiles/files/2254549156.pdfIn PDF document text
  • http://standartbio.com/fckfiles/file/66195969020.pdfIn PDF document text
  • https://conexkarvan.com/cache/fck_files/file/pomisifedizuratagavoduger.pdfIn PDF document text
  • https://fundacionamigosdelmarcaribe.ong/ckfinder/userfiles/files/zegivojarovegokuxe.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=alternative+web+browsers+for+androidPDF 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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