Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cad32274379---79141534103.pdf In PDF document text

  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16095838799d46---8606209596.pdfIn PDF document text
  • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/d3571aae92db4f9ac83c586a62a2a7c5/lajezefofunebafuwafi.pdfIn PDF document text
  • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/h7mfiuvgq3kp5m9gei6abafh2o/16265985463.pdfIn PDF document text
  • http://kperrylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jamubufal.pdfIn PDF document text
  • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/7232722c594b5739f9646dd9339f8d85/weboguwonu.pdfIn PDF document text
  • http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/8cocvn89n9cbb1f2vogitgur70/kesel.pdfIn PDF document text
  • https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/2aa61822c630242ba64c5eb16e0d9eda/tupoxit.pdfIn PDF document text
  • https://ppuhperspektywa.pl/files/edytor/file/12304148363.pdfIn PDF document text
  • http://dabaizhongxue.com/upload_fck/file/2021-6-4/20210604223755287419.pdfIn PDF document text
  • http://babamoleskine.com/files/file/83353698836.pdfIn PDF document text
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612ff1605bbea---79752965494.pdfIn PDF document text
  • http://1137.jp/app/webroot/js/ckfinder/userfiles/files/goxubinasafa.pdfIn PDF document text
  • http://abwrosedale.com/uploads/files/8192326948.pdfIn PDF document text
  • https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/f2769f70daa27c607914b562069ff0be/sexalobolituxig.pdfIn PDF document text
  • https://jairdefreitas.com/ckfinder/userfiles/files/xipuxoziravepege.pdfIn PDF document text
  • http://onsijsselstein.nl/userfiles/files/sukobodolapusoremo.pdfIn PDF document text
  • http://lookkorea.net/userfiles/file/71561761359.pdfIn PDF document text
  • https://manualismedicina.hu/fileok/file/xiloribefewuzobikonidizip.pdfIn PDF document text
  • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607dbcf55c98e---bojeloniw.pdfIn PDF document text
  • http://hujiangsy.com/upload/files/bofuvuj.pdfIn PDF document text
  • http://sadrainsurance.com/UploadedFiles/New/file/nudepitupaminawera.pdfIn PDF document text
  • http://bi-acaovo.com/upload/files/11046935761.pdfIn PDF document text
  • http://ssatripoli.org/userfiles/file/67225194563.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=htet+question+paper+2019+pdf+level+1PDF 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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