Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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 http://cokhihoangvinh.com/uploads/userfiles/file/14549075834.pdf In PDF document text

  • http://info56.ru/userfiles/file/xovulo.pdfIn PDF document text
  • http://pwr-tech.ru/userfiles/file/87373116003.pdfIn PDF document text
  • http://foto-klub.dk/userfiles/file/87655925704.pdfIn PDF document text
  • https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bd5bdea3e3---36818083737.pdfIn PDF document text
  • http://tingchucontrol.com/Uploadfiles/files/4802623503.pdfIn PDF document text
  • http://happypalettebnb.com/CKEdit/upload/files/41964644335.pdfIn PDF document text
  • http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/160980537ecf2c---92895369565.pdfIn PDF document text
  • http://longarmquiltacademy.net/fckeditor/userfiles/file/21065692937.pdfIn PDF document text
  • http://proxima-design.cz/files/file/pozefariwodi.pdfIn PDF document text
  • https://fajanav.com/aym_image/files/gofamibefigoxugoxoxe.pdfIn PDF document text
  • http://patrick-jardinage.fr/ckfinder/userfiles/files/pekituda.pdfIn PDF document text
  • http://alpha-cp.com/userfiles/file/17397746965.pdfIn PDF document text
  • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4bc675fb99---60242440726.pdfIn PDF document text
  • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160ca0c4f22d9f---72865792460.pdfIn PDF document text
  • https://stop-remont.ru/ckfinder/userfiles/files/bepaniweke.pdfIn PDF document text
  • http://ferramentabelleggia.it/public/file/59503963535.pdfIn PDF document text
  • https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/dv154keu81sfi8scpocga17ev2/dekulumovozefefugaze.pdfIn PDF document text
  • https://lazerom.pro/media/file/pinemuzuvegogenavos.pdfIn PDF document text
  • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160c2d51eda869---53749959756.pdfIn PDF document text
  • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070f1f0cf55b---lapivube.pdfIn PDF document text
  • http://www.alexgis.com/siteuploads/editorimg/file/8428750127.pdfIn PDF document text
  • http://ychnjl.net/userfiles/files/pukazokotebaxunonudoxorak.pdfIn PDF document text
  • https://chatsystem.site/js/ckfinder/userfiles/files/4282553126.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=biosynthesis+of+fatsPDF link annotation
  • http://www.iea.org/w/bookshop/add.asIn PDF document text
  • 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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