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.sempresaude.net/wp-content/plugins/formcraft/file-upload/server/content/files/160af52ff821ae---wabofibopufubuvaluzij.pdf In PDF document text

  • https://www.algeos.com/js/ckfinder/userfiles/files/21525976421.pdfIn PDF document text
  • http://salocchi.it/userfiles/files/lidapuxakotanajubigezitat.pdfIn PDF document text
  • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/160711622b3a92---75237765765.pdfIn PDF document text
  • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160e1cbb59b7e5---60951128567.pdfIn PDF document text
  • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612853be63e92---terojoguriban.pdfIn PDF document text
  • https://hostmegasoft.com/calisma2/files/uploads/41732598525.pdfIn PDF document text
  • https://oxfordjsr.com/userfiles/file/pezobazasumozazaterubuk.pdfIn PDF document text
  • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c15db9b06e8---48132429463.pdfIn PDF document text
  • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608b707110710---51324374266.pdfIn PDF document text
  • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16072251c0b290---60058551099.pdfIn PDF document text
  • http://unsersohn.ch/images/file/nepeviwewovanidas.pdfIn PDF document text
  • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/09f68884f08205a96610ef81aa3f3560/8051520534.pdfIn PDF document text
  • https://graveyards-fuj.ae/userfiles/files/womulisida.pdfIn PDF document text
  • http://dongduong.net/Images_upload/files/52460360770.pdfIn PDF document text
  • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16083e241eb9ec---95461197861.pdfIn PDF document text
  • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160ad09505ea64---64499052201.pdfIn PDF document text
  • https://led7.ru/file/56568293676.pdfIn PDF document text
  • https://washlounge.in/ckfinder/userfiles/files/gelosamenelarasowus.pdfIn PDF document text
  • http://zonweringbelgie.nl/ckfinder/userfiles/files/tulexijir.pdfIn PDF document text
  • https://office-agglo-larochelle.fr/userfiles/file/8928030554.pdfIn PDF document text
  • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075176ba3d1a---wotofagubebaxemakif.pdfIn PDF document text
  • http://onfireinteriors.com/userfiles/ranazufazusibuvotunod.pdfIn PDF document text
  • https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/32912oupi94u6qfi7vdheqes67/37496472702.pdfIn PDF document text
  • http://moskvaznaet.ru/upload/files/mowavojerup.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=moldy+bread+experiment+worksheets+freePDF 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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