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 https://infrive.ru/uplcv?utm_term=diagnostic+imaging+oncology+2nd+edition+pdf PDF link annotation

  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b90569edd38---66371338689.pdfIn PDF document text
  • http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16082cd1175b5f---23064490678.pdfIn PDF document text
  • http://luatsutiengtrung.com/app/webroot/uploads/files/95101334932.pdfIn PDF document text
  • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16078126d8a25a---kiroxunivuki.pdfIn PDF document text
  • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16081ce12176e9---zofonafigisesutazexamajop.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dd352581eb---98648879766.pdfIn PDF document text
  • https://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/160927672f38cd---mutazarefapekoti.pdfIn PDF document text
  • https://e-tta.com/app/webroot/userfiles/files/rafufamomimoj.pdfIn PDF document text
  • http://brunsfamilyreunion.org/clients/e/e7/e70b0594429ddd28dfd4dd2f61c76e80/File/31582351654.pdfIn PDF document text
  • https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cb3fc2758b---zikas.pdfIn PDF document text
  • https://akproauto.com/nbloom/fckuploads/file/71589478978.pdfIn PDF document text
  • https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/ce7l3ntso2d67q9eqj1j0vho74/5548420505.pdfIn PDF document text
  • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/1c19a5f106081452c3b92dc0e5f009c6/tatotonorinepapupaz.pdfIn PDF document text
  • http://agcslohian.com/userfiles/file/kuxavemisafobivezozubig.pdfIn PDF document text
  • https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/70cd43912406ea0e4bde66377333e537/figugebumuzojevizutug.pdfIn PDF document text
  • https://www.perfumista.co.uk/wp-content/plugins/super-forms/uploads/php/files/1b113cdb3546a04d79746fda7399667e/49691407271.pdfIn PDF document text
  • http://rajskiewakacje.pl/userfiles/file/jawosavonifevutimonugu.pdfIn PDF document text
  • https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/44c545ba33f5e65a39ca301cb35f1604/popodorir.pdfIn PDF document text
  • https://palcev.ru/userfiles/file/lenomivejejabefaxutuzikim.pdfIn PDF document text
  • http://kaies.cn/upfiles/file/33614274520.pdfIn PDF document text
  • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16098899b11476---79115277513.pdfIn PDF document text
  • https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/8ffb8fdda6b1cc3529060e0289c88175/17808810171.pdfIn PDF document text
  • http://jarosi.hu/files/file/57092912444.pdfIn PDF document text
  • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160c8520bab9d4---97509293518.pdfIn PDF document text
  • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/8ecf3a7ca31a2dbcb0b3b8aecc36fa31/11385384163.pdfIn PDF document text
  • 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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