Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://archism.ru/uplcv?utm_term=uworld+step+3+qbank+offline+pdf PDF link annotation

  • http://sbkf.org/files/files/72440388498.pdfIn PDF document text
  • https://cavalier-hundezucht.ch/userfiles/file/78830597217.pdfIn PDF document text
  • https://felicityokolo.com/file/winukorefomof.pdfIn PDF document text
  • http://assushop.com/userfiles/assushop.com/file/puronaxe.pdfIn PDF document text
  • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/ne7lf74l12vk44n14cm1pgfp7a/36735102244.pdfIn PDF document text
  • http://yaqeen-eg.com/userfiles/file/28884033360.pdfIn PDF document text
  • https://ahreco.com/uploads/news_file/52687341325.pdfIn PDF document text
  • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/160fee1f9612a6---81073314401.pdfIn PDF document text
  • https://accesoriosalmayor.com/images/userfiles/file/guwodimogopogapubafat.pdfIn PDF document text
  • https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/8d2163cde2a7cf19179dbbaf9542e219/naxosopuriwega.pdfIn PDF document text
  • http://kingsauto-bar.com/js/upload/files/mawuwajixexexaxa.pdfIn PDF document text
  • https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/0c370c0d69f9b61846e605d6fa6d66ce/zuliwo.pdfIn PDF document text
  • http://polskienarty.pl/data/aktualnosci_imgs/file/vigewafitax.pdfIn PDF document text
  • http://bigdoughpizza.com/uploads/files/mawuwitigesijomoxoluroda.pdfIn PDF document text
  • http://enerkonelektrik.com/ckfinder/userfiles/files/45398571566.pdfIn PDF document text
  • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/viti8q3ub02ghdvsvi01gbd6ej/pupow.pdfIn PDF document text
  • https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608103842badd---17538679776.pdfIn PDF document text
  • https://eitmedu.in/ckfinder/userfiles/files/mesilupibaka.pdfIn PDF document text
  • http://tryinvest.eu/userfiles/files/5782209166.pdfIn PDF document text
  • https://siam-royal-view.ru/data/files/lagikesip.pdfIn PDF document text
  • http://altelaw.com/uploads/image/file/reloped.pdfIn PDF document text
  • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/160dbdbc71aec4---dejegin.pdfIn PDF document text
  • https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/bc42996095e1efe1209aab52e5854a39/35294107776.pdfIn PDF document text
  • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cde6afe668d---87897698433.pdfIn PDF document text
  • http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608f982a6720b---zexevamakipupo.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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