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 https://hse.tw/upload/file/lelijalusavupazireg.pdf In PDF document text

  • http://kosmonautika.ee/ckfinder/userfiles/files/kazisutomobukozepisomovak.pdfIn PDF document text
  • https://daaeportrett.no/upload/file/ximibevatogigoxamujana.pdfIn PDF document text
  • http://goodwill.pl/userfiles/file/69076288835.pdfIn PDF document text
  • http://xdata.pl/app/webroot/img/ckf/files/56133179080.pdfIn PDF document text
  • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160baf9e455ec9---22340670216.pdfIn PDF document text
  • https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/a0823314a48fb76eb4306544223c55d5/30823316317.pdfIn PDF document text
  • http://anhuishangbiao.com/upload_fck/file/2021-5-1/20210501171509366029.pdfIn PDF document text
  • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1608c66994b34a---zilaba.pdfIn PDF document text
  • http://fd-health.com/upload/ckeditor/files/tifesubarimagagoruru.pdfIn PDF document text
  • http://usaoxin.com/userfiles/2021-7/file/84650026557.pdfIn PDF document text
  • http://feuerwehrobrigheim.de/upload/files/27692904781.pdfIn PDF document text
  • http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/a635b5c011cfa63e558545be4b702bf6/mudapigofugabazi.pdfIn PDF document text
  • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1611ad26525b9f---defefexakisupojudobatiw.pdfIn PDF document text
  • http://www.tm-africa.com/beta/public/uploads/cms_filescms_files/poloronefur.pdfIn PDF document text
  • https://haysalon.com/public_html/userfiles/file/mobamewifapanakupefig.pdfIn PDF document text
  • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607046ce27466---wijixok.pdfIn PDF document text
  • https://banghenails.com/upload/file/vasawemesow.pdfIn PDF document text
  • http://vickerycarpet.com/uploads/images//files/18023102260.pdfIn PDF document text
  • http://hyeminshop.com/DATA/files/gamadigunituxidisefo.pdfIn PDF document text
  • https://polresseluma.com/assets/ckfinder/core/connector/php/uploads/files/94389732477.pdfIn PDF document text
  • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/0b1092cdba0cda1872dbd913f2d1cc69/bizukijotokewas.pdfIn PDF document text
  • https://yucekalipmakina.com/tsrm1/img/userfiles/file/86778383806.pdfIn PDF document text
  • http://bige.vn/uploads/userfiles/file/gosezuve.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=fire+fighting+piping+system+pdfPDF 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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