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 https://huntic.ru/uplcv?utm_term=zombo+buster+rising+hacked PDF link annotation

  • http://ubytovani-budejovice.cz/picture/vtextu/file/17342538447.pdfIn PDF document text
  • http://silverspringabw.com/uploads/files/jugowad.pdfIn PDF document text
  • http://hoteldanang.com/uploads/images/files/17973181824.pdfIn PDF document text
  • https://selapro.com.au/application/third_party/ckfinder/userfiles/files/93684888785.pdfIn PDF document text
  • http://medi-sen.com/files/files/65283621186.pdfIn PDF document text
  • http://suriyedostlukdernegi.org/image/files/71839237847.pdfIn PDF document text
  • http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/161465e12dd0d4---pebibeteze.pdfIn PDF document text
  • http://phoiinnhiet.com/images/uploads/files/78855063884.pdfIn PDF document text
  • http://studiofagiani.eu/userfiles/files/96289021187.pdfIn PDF document text
  • https://autoroman-service.ro/imagini_ws/sipamonigifaboruvudobujil.pdfIn PDF document text
  • https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/933ab6978d4a05ee9ccd50f1c2f30130/rixajumixotufujuwititu.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fcc5d997c2---xotadolalibojonalaxulu.pdfIn PDF document text
  • http://shinyoungvalve.com/userData/board/file/lifisorakisumi.pdfIn PDF document text
  • http://postelezmasivu-brno.com/ckfinder/userfiles/files/lolojarabakozi.pdfIn PDF document text
  • https://baobiachau.com/luutru/files/zafepe.pdfIn PDF document text
  • http://vet-arrighicolangelicristilli.eu/userfiles/files/39794195340.pdfIn PDF document text
  • http://perechen-izdaniy.ru/js/ckfinder/userfiles/files/firuzozilaw.pdfIn PDF document text
  • http://indyztyle.com/ckfinder/userfiles/files/30586570723.pdfIn PDF document text
  • http://skogsformedling.se/bilder_umeny/File/93475572998.pdfIn PDF document text
  • http://www.otevrenysklep.cz/ckfinder/userfiles/files/wobokuwemevevimozu.pdfIn PDF document text
  • https://quangcaowebsitecomvn.xemlaco.com/uploads/files/64207020783.pdfIn PDF document text
  • http://tuzy.pl/Upload/file/77138118299.pdfIn PDF document text
  • http://tonghuichem.com/upload/files/ruzifanafisogidagolibalid.pdfIn PDF document text
  • http://thaiboxes.com/piceditor/file/zejokififebakusaxotag.pdfIn PDF document text
  • https://centrehistoriquesndbc.com/ckfinder/userfiles/files/resite.pdfIn PDF document text
  • https://rasathantrananotech.com/ckfinder/userfiles/files/xevexidobawipitobudoseza.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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