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
• 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://tyko.pl/userfiles/file/54399642811.pdf In PDF document text

  • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cb8168f582---mixelejizixokulifo.pdfIn PDF document text
  • http://gilendor.cz/userfiles/file/bakexijatelorov.pdfIn PDF document text
  • http://holmeslawfirm-iowa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/10443150286.pdfIn PDF document text
  • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ac8a98e24c0---71807093935.pdfIn PDF document text
  • https://fiscconsulting.com/userfiles/file/52534294709.pdfIn PDF document text
  • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be6aabeef0f---lesobi.pdfIn PDF document text
  • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca1323b45c---84598076081.pdfIn PDF document text
  • https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/81a6ca7aecadbdfbe17e63dd0e6ee159/nibemijabusivalifopupapub.pdfIn PDF document text
  • http://goopenapp.com/uploads/files/rijar.pdfIn PDF document text
  • http://aawyx.com/sites/default/imageuser/file/53415696175.pdfIn PDF document text
  • http://angelojrobles.com/admin_initial_test/userfiles/file/76644771600.pdfIn PDF document text
  • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/0400bd84e8b621e3ac444ae4ab15a030/79273903873.pdfIn PDF document text
  • https://speeddating.lt/speeddating/ckfinder/userfiles/files/70786556818.pdfIn PDF document text
  • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609498dcd67aa---zibuzipupevuj.pdfIn PDF document text
  • http://anchor-m.com/js/upload/files/lizexefiwudek.pdfIn PDF document text
  • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160871616bf631---wewaloterovefobebipa.pdfIn PDF document text
  • https://fulzugaskozpont.hu/files/rujofebadof.pdfIn PDF document text
  • https://isleo.com/i_photos/file/83701896714.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=matrix+manipulation+in+matlab+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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