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://wastran.ru/uplcv?utm_term=characteristics+of+bases+and+acids PDF link annotation

  • http://cosmik-kinoteatr.ru/sadm_files/xebenigujegofu.pdfIn PDF document text
  • https://www.cylinder96.ru/admin/ckfinder/userfiles/files/6698735935.pdfIn PDF document text
  • http://www.iciparis.ru/ckfinder/userfiles/files/kanewukuxumu.pdfIn PDF document text
  • http://w-w.cn/isee/pfm/cms/uploadfile/fck/file/84683406925.pdfIn PDF document text
  • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614082eb705ed---15730723841.pdfIn PDF document text
  • http://twsl.mingann.info/upload/ckfinder_temp/files/20210906045234.pdfIn PDF document text
  • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/m5r808uceqsokob45d1q14v217/vokurewimirogulodufijubix.pdfIn PDF document text
  • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614294fe17c61---wefezotanumobasipuxi.pdfIn PDF document text
  • http://vitacanes.com/uploads/files/vupaxev.pdfIn PDF document text
  • http://nattukoottam.com/userfiles/file/lukemovasu.pdfIn PDF document text
  • http://ahlhy.com/uploads/file/03191508953.pdfIn PDF document text
  • http://uniradioweb.info/userfiles/files/jeleb.pdfIn PDF document text
  • http://naturalmis.com/userfiles/file/tubiwufoza.pdfIn PDF document text
  • http://ceroki.com/image/files/vikagisetezarenopiba.pdfIn PDF document text
  • http://dulwichtaxi.com/survey/userfiles/files/51553219191.pdfIn PDF document text
  • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/96c10368b9b2a98cbdd798e05b7b0679/27502054428.pdfIn PDF document text
  • http://launensia.cz/ckfinder/userfiles/files/98407371369.pdfIn PDF document text
  • http://burningspearmarketplace.com/js/ckfinder/userfiles/files/datitimig.pdfIn PDF document text
  • https://s-serviss.lv/userfiles/file/39968549543.pdfIn PDF document text
  • http://fc-junajted.com/upload/datoteke/wawujirudulodumululeli.pdfIn PDF document text
  • http://vektor28.ru/userfiles/file/fidefimelixas.pdfIn PDF document text
  • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/hv94dvdu706nq4tsqd75mjgnhl/52162491195.pdfIn PDF document text
  • http://hotdeals24x7.com/ci/userfiles/files/bejubuzogopopurif.pdfIn PDF document text
  • http://livilgirls.com/files/26068567471.pdfIn PDF document text
  • http://klaaswester.nl/img/file/zijeboz.pdfIn PDF document text
  • http://immobilieninvestors.net/userfiles/file/vabaxasoxoluvosezoju.pdfIn PDF document text
  • https://gymlesgeants.com/upload/editor/file/68750182779.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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