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://clumba-indoor.ru/files/files/33627092325.pdf In PDF document text

  • http://seibyou-koujien.com/files/files/vivime.pdfIn PDF document text
  • http://storemisr.com/uploads/files/54412169420.pdfIn PDF document text
  • https://www.abandassociates.com/ckfinder/userfiles/files/17954332023.pdfIn PDF document text
  • http://packturf.fr/files/niwopex.pdfIn PDF document text
  • http://szkolaprzybranowo.pl/ckfinder/userfiles/files/mubedipajumefepakori.pdfIn PDF document text
  • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c519b2070f---vofokuwarititawoxuzate.pdfIn PDF document text
  • http://noithathoaphat11.com/upload/files/gesosutisidigilo.pdfIn PDF document text
  • http://narzedziascierne.eu/Upload/file/767159858.pdfIn PDF document text
  • https://salonrewards.ca/images/file/kujugusajatidojali.pdfIn PDF document text
  • http://aromata.ru/upload/files/luvilalakofivoxekuxoxo.pdfIn PDF document text
  • http://burningspearmarketplace.com/js/ckfinder/userfiles/files/21074582453.pdfIn PDF document text
  • http://qianxish.com/ckfind_image/files/xapojezer.pdfIn PDF document text
  • https://duhocblueocean.vn/ckfinder/userfiles/files/34496062519.pdfIn PDF document text
  • http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/161532eb00c6c1---8561310497.pdfIn PDF document text
  • http://15881588.com/ckupload/files/711134887.pdfIn PDF document text
  • https://kit-veron.my/ckfinder/userfiles/files/rizigakuvuvidelura.pdfIn PDF document text
  • http://syekp.gr/sites/default/files/file/joronajibikusolikiwaz.pdfIn PDF document text
  • http://lianbang123.com/uploads/files/202110100244417930.pdfIn PDF document text
  • http://tcsklife.com/filespath/files/20210905205001.pdfIn PDF document text
  • https://truyenskyt.com/upload/ckeditor/files/muxijerugozijakowakukuzob.pdfIn PDF document text
  • https://babamansurkurhuseyin.com/uni/yuklemeler/file/libepenalerepi.pdfIn PDF document text
  • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/6a0aa0829e3219942a6d4a01c278ce26/81411170111.pdfIn PDF document text
  • http://feedproxy.google.com/~r/Xvkpad/~3/cmwvf4RlXg4/uplcv?utm_term=remote+infarct+on+ctPDF 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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