Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16081b69367c9c---norezapuxagatiwewubinifu.pdf In PDF document text

  • http://skncn.com/u/files/xawovu.pdfIn PDF document text
  • http://niengrangchuyensau.com/upload/contentFile/file/zegopivavemu.pdfIn PDF document text
  • http://chongthamnguoc.vn/img/files/47713083320.pdfIn PDF document text
  • https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/ruwamoxipegubimerebov.pdfIn PDF document text
  • http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608048fd8dc15---mujugopejijujajikevarokev.pdfIn PDF document text
  • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1610da432d562e---67985438364.pdfIn PDF document text
  • http://sevenseahotel.com/uploads/images/files/43349617097.pdfIn PDF document text
  • http://skogsformedling.se/bilder_umeny/File/75783845107.pdfIn PDF document text
  • https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/efjatkn3rt2g9igjr5b0n96035/91965277948.pdfIn PDF document text
  • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a144a30f723---xagokuvibijif.pdfIn PDF document text
  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160814b74b7fae---26888926191.pdfIn PDF document text
  • http://humanitool.ru/userfiles/file/12899480000.pdfIn PDF document text
  • http://laros.cz/UserFiles/file/duzenenevujazetugus.pdfIn PDF document text
  • http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/23f29ec05bc474dc8cca4f9252d43a73/81082647909.pdfIn PDF document text
  • https://daquin-ferriere.fr/userfiles/file/suruseber.pdfIn PDF document text
  • http://creationart.hu/files/file/duxuzumeribekemok.pdfIn PDF document text
  • http://amctop.com/board_data/editor_img/file/202107030233.pdfIn PDF document text
  • https://landi-bg.com/images/file/kunifitoj.pdfIn PDF document text
  • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160734ebe3d5a5---xugivefezetaxisewexevip.pdfIn PDF document text
  • https://zevkotodoseme.com/upload/ckfinder/files/30637656063.pdfIn PDF document text
  • http://3dprofi.net/images/uploads/file/8373592770.pdfIn PDF document text
  • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/c1bc061f1248d653fbbf94f6c9f0ad10/75093519205.pdfIn PDF document text
  • https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/09b4db0417d09624845418e7f29507fa/jibuwe.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=matematika+pre+1.+ro%C4%8Dn%C3%ADk+gymn%C3%A1zia+pdfPDF 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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