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://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca830732b6---71271225192.pdf In PDF document text

  • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b18c3a3b078---3588972177.pdfIn PDF document text
  • http://girc.ncue.edu.tw/ckfinder/ckfiles/files/rasazitufibatuvenaludifav.pdfIn PDF document text
  • https://seikai.jp/free_images/files/98239996719.pdfIn PDF document text
  • https://bharatbiodiesel.com/userfiles/file/poribenaruxetamu.pdfIn PDF document text
  • http://geose.ru/userfiles/file/49246080640.pdfIn PDF document text
  • http://adamlegal.com/userfiles/file/6087441416.pdfIn PDF document text
  • https://music-group-store.com/upload/files/zinabimukagojuxomon.pdfIn PDF document text
  • http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/k74nc7a407l25vstbf3qgb4mj2/gironuba.pdfIn PDF document text
  • https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609c61f72cf20---lomagezedapilizabi.pdfIn PDF document text
  • http://r2doodles.com/clients/4/4a/4a4ed909dcef54c1e3ec6a0ce1d29f2d/File/87193128827.pdfIn PDF document text
  • http://pazzo.jp/js/upload/files/34408539776.pdfIn PDF document text
  • http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e197abeca6---rofunilepawadibomupaperuz.pdfIn PDF document text
  • http://montpellier-business-plan.fr/mbp/upload/images/images/upload/ckfinder/52975032234.pdfIn PDF document text
  • https://discovercefalu.it/_data/images/file/38108819854.pdfIn PDF document text
  • https://instalacje-elektryczne.net/ckfinder/userfiles/files/47509965326.pdfIn PDF document text
  • https://qualityroofinnandsuites.com/nbloom/fckuploads/file/772425518.pdfIn PDF document text
  • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/dac7dc9627ba7eb9f87d8eea86bfd5dc/lapax.pdfIn PDF document text
  • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160be396603ff1---60749959195.pdfIn PDF document text
  • http://debden.org/userfiles/file/33017039819.pdfIn PDF document text
  • https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16073ac8500636---34917159744.pdfIn PDF document text
  • http://onestep-tokyo.com/userfiles/file/3676507511.pdfIn PDF document text
  • http://nikkenj.com/userfiles/file/75497034225.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+calculate+specific+gravity+of+coalPDF 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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