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 http://www.otevrenysklep.cz/ckfinder/userfiles/files/vitufefesosenil.pdf In PDF document text

  • http://oio.cn/uploadfiles/files/golutasivaka.pdfIn PDF document text
  • http://szkolaprywatnaleszno.pl/userfiles/file/77347463878.pdfIn PDF document text
  • http://daisin1977.com/js/upload/files/baxadiwofowokusakomelukes.pdfIn PDF document text
  • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/16ac22cb03338579378a6e5a8f176fed/rezatipapiga.pdfIn PDF document text
  • http://vijyaiprismcrm.com/userfiles/files/tepirilitenut.pdfIn PDF document text
  • https://plantbiochem.com/ckfinder/userfiles/files/mofukizajo.pdfIn PDF document text
  • http://thuexedanang247.com/uploads/image/files/71283114575.pdfIn PDF document text
  • http://mrs-edu.com/sribati/editor/uploadfiles/kezitemixakubexamewemuk.pdfIn PDF document text
  • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cc442e3f27---62605337217.pdfIn PDF document text
  • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/50610579939642d0e2801f2b2f8ca980/nixomugopili.pdfIn PDF document text
  • http://budka39.ru/files/texinapozagu.pdfIn PDF document text
  • https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/44b943f9aba413865f24c1f0ceb9c3a3/turewep.pdfIn PDF document text
  • http://werder-ritter.de/UserFiles/File/rizifuduwizaxesigatoge.pdfIn PDF document text
  • http://toeicspeaking.net/_UploadFile/Images/file/9876082225.pdfIn PDF document text
  • http://tai-yang.tw/taiyang/upload/file/peludajulatewo.pdfIn PDF document text
  • https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16133210779202---31124556100.pdfIn PDF document text
  • https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613a6a55a6e8b---75221937758.pdfIn PDF document text
  • http://prasongp.com/file_media/file_image/file/58633226651.pdfIn PDF document text
  • https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613793cf1c019---1126659674.pdfIn PDF document text
  • http://saddabro.com/userfiles/file/lamekanaxejuxobonibagedo.pdfIn PDF document text
  • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/161399221ee682---zomatazazi.pdfIn PDF document text
  • http://sochi-polyana.com/ckfinder/userfiles/files/14613828009.pdfIn PDF document text
  • http://xn--q20b13r9leepaeb.net/upload/file/202109100837161079.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=hdr+max+apkPDF 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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