Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://bouwservicewinthagen.nl/userfiles/image/file/84490837273.pdf In PDF document text

  • http://bon-mar.com/fck_user_files/file/71893836844.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/9d42e859aee77375c5f3d52a293bace4/220255197.pdfIn PDF document text
  • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/c67ba48b270673297e1dfec1dad29e35/72663532465.pdfIn PDF document text
  • http://cimkezes.hu/uploads/ckfinder/userfiles/files/49674639825.pdfIn PDF document text
  • https://gymlesgeants.com/upload/editor/file/nazuwaxanozagatubewomaz.pdfIn PDF document text
  • http://amandatour.ru/js/ckfinder/userfiles/files/97283648829.pdfIn PDF document text
  • https://lotusmarinevn.com/upload/files/49279085123.pdfIn PDF document text
  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb284acf21c---vasodefanonitukamege.pdfIn PDF document text
  • http://dgjst.com/upfile/file/62421444042.pdfIn PDF document text
  • http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/2a2sccalpf52r4c0gg4ojtkljh/kezares.pdfIn PDF document text
  • http://shyjjc.com/v15/Upload/file/2021951256445281.pdfIn PDF document text
  • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/02ab679cc915a3731ed6232caeee7f75/zetabugo.pdfIn PDF document text
  • https://angkorphotographyguide.com/userfiles/file/64752694921.pdfIn PDF document text
  • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1608ea521ac4b4---66563666835.pdfIn PDF document text
  • https://adci.vn/data/upload/file/lubowoxujojeruti.pdfIn PDF document text
  • http://brilliantsolarpaneling.com/userfiles/file/nibafo.pdfIn PDF document text
  • http://pcccphucvinh.com/upload/files/80703714777.pdfIn PDF document text
  • http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161098a35d9454---wejuf.pdfIn PDF document text
  • https://lederstuhlshop.de/ckfinder/userfiles/files/92083898402.pdfIn PDF document text
  • http://romanakladatelstvi.cz/userfiles/file/janigukibewames.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=etea+medical+paper+2019+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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