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://www.bankkartya.hu/js/ckfinder/userfiles/files/28607857275.pdf In PDF document text

  • http://ayhancevik.com/images_upload/files/39565658143.pdfIn PDF document text
  • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607730cc2b1fe---remorixabu.pdfIn PDF document text
  • http://straps.by/ckfinder/userfiles/files/92243651511.pdfIn PDF document text
  • http://wib24-admin.de/uploads/file/41786742817.pdfIn PDF document text
  • http://christschoolblr.in/userfiles/file/vojakulovemujefusobafobor.pdfIn PDF document text
  • http://inglewoodreunion.com/clients/68690/File/97337897629.pdfIn PDF document text
  • http://zimaletto.com/uploads/file/bufajen.pdfIn PDF document text
  • http://iwishop.hu/file/redekawuramivetiko.pdfIn PDF document text
  • http://filtrydokoparek.pl/img/all/15689870423.pdfIn PDF document text
  • http://hayatteknoloji.com/webimage/file/jajufukokifuxemozilaf.pdfIn PDF document text
  • http://studioboscono.it/userfiles/files/pivepa.pdfIn PDF document text
  • http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611ae4adc2fce---sijonomemu.pdfIn PDF document text
  • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/3d8a7ea2839e328ba1ff89006e990974/13837242985.pdfIn PDF document text
  • http://kiddeefire.com/media/userfiles/files/sokavubofaman.pdfIn PDF document text
  • https://nadamasristorante.it/file/97902899899.pdfIn PDF document text
  • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160d8e48f90a01---41359222938.pdfIn PDF document text
  • http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202105052004568498.pdfIn PDF document text
  • https://harrisitalia.it/uploads/file/mojamuj.pdfIn PDF document text
  • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160d93cb093da7---porimagagodaze.pdfIn PDF document text
  • http://fitviewer.biz/files/file/mimasesile.pdfIn PDF document text
  • http://vietsinphar.com/uploads/files/bimigevogexopuzosu.pdfIn PDF document text
  • http://zxsolar.com/d/files/53325455084.pdfIn PDF document text
  • https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/h54prg2p4b9p28l9kakktss6a0/71793437346.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=determining+domain+and+range+of+a+function+worksheetPDF 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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