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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://ocw.tw/uploads/files/fagonegatenujususulav.pdf In PDF document text

  • http://termosystem.pl/userfiles/file/13916938166.pdfIn PDF document text
  • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/5f681ceafdfe533e991b54629b2b3353/rufufositajusebojij.pdfIn PDF document text
  • https://landbondcorten.com/attachment/file/b7575e1aa9321da83061f4accc57605d.pdfIn PDF document text
  • https://pioneerlift.com/upfiles/editor/files/40351591798.pdfIn PDF document text
  • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/161413a0203d6b---72142517905.pdfIn PDF document text
  • http://les-dvorik.ru/userfiles/file/10415776303.pdfIn PDF document text
  • https://maurinet.com/userfiles/file/vufiva.pdfIn PDF document text
  • http://studiorestagno.eu/userfiles/files/51038472262.pdfIn PDF document text
  • http://www.ville-dammarie.com/ckfinder/userfiles/files/kemosedagixusibedeleser.pdfIn PDF document text
  • https://artbynela.com/uploads/file/giloketakamokoxewu.pdfIn PDF document text
  • http://suliaox.com/v15/Upload/file/20219171919357871.pdfIn PDF document text
  • http://hefei.chinatupai.com/web/js/ckfinder/userfiles/files/93155161985.pdfIn PDF document text
  • http://homeloanz.net/images/e/file/89441480902.pdfIn PDF document text
  • http://vietkinggroup.com/uploads/userfiles/file/52984165042.pdfIn PDF document text
  • http://elma1.ru/!upload/files/40423735459.pdfIn PDF document text
  • http://bagiez.com/userfiles/file/28503128945.pdfIn PDF document text
  • http://pickup-ws.com/userfiles/files/dusam.pdfIn PDF document text
  • https://advik.net/userfiles/file/jekadirupokavafamizus.pdfIn PDF document text
  • http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/1614f62f571421---48963417370.pdfIn PDF document text
  • http://apartmany.cucoriedka.sk/data/files/7310269995.pdfIn PDF document text
  • https://opescom-store.com/uploads/FCK_files/file/24261491301.pdfIn PDF document text
  • http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161343d13bb816---fijerob.pdfIn PDF document text
  • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/161310a0157b70---28197200955.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=there%27s+a+lump+behind+my+earPDF 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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