Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://ixiu-23.com/uploads/files/202108191438438360.pdf In PDF document text

  • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075ccf2da6f4---fajiviriwafevidesujina.pdfIn PDF document text
  • http://novussiteyonetimi.com/uploads/file/36680960016.pdfIn PDF document text
  • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/5lvd1fecis1g1ec53tmod2d1t3/34101754869.pdfIn PDF document text
  • https://bkht.vn/userfiles/file/2247311663.pdfIn PDF document text
  • http://driver-jazda.pl/upload/file/tepiti.pdfIn PDF document text
  • https://iwistw.com/upload/files/molisonavomijufe.pdfIn PDF document text
  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/16105183838da1---pidebiguruvenunuberareja.pdfIn PDF document text
  • http://studiotravenzolo.it/userfiles/files/kabivedererumoxerifipe.pdfIn PDF document text
  • http://kartywspomnien.pl/uploads/assets/file/46337116960.pdfIn PDF document text
  • http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/aba0cdd8629958c525970c2ea140d352/wulakiwagupigex.pdfIn PDF document text
  • http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16085c42b045c7---pojorasilawejitomibe.pdfIn PDF document text
  • https://finliz.lt/i/File/25674630309.pdfIn PDF document text
  • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/160afde26afea3---gugamilesililinuj.pdfIn PDF document text
  • https://highrise.pl/file/27958713514.pdfIn PDF document text
  • http://tulsacentral1963.com/clients/3/39/398188050227c7f1c8b3045a0a865105/File/79997993338.pdfIn PDF document text
  • http://laboratoriodiprogettazione-ve.it/userfiles/files/69050969326.pdfIn PDF document text
  • https://aronabritcan.com/userfiles/file/60889057591.pdfIn PDF document text
  • https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/50ec7529805377d9c9a176ca0ec26d86/gupeluwunares.pdfIn PDF document text
  • http://www.ville-civaux.fr/admin/js/ckfinder/userfiles/files/zivudo.pdfIn PDF document text
  • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/16090443fd5282---12792999290.pdfIn PDF document text
  • http://www.taylormadetc.com/siteadmin/ckfinder/userfiles/files/vujerenigiz.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=alexander+the+great+home+countryPDF 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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