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://ketchas.ru/uplcv?utm_term=face+id+authentication+in+android PDF link annotation

  • https://biomedchita.ru/imeg_master/file/34062521280.pdfIn PDF document text
  • http://sparkpro.lv/content/file/50146546342.pdfIn PDF document text
  • http://talentfuturesservices.com/sharpinstitute/images/files/28251084513.pdfIn PDF document text
  • http://bearings-home.com/userfiles/file/wegasukiludosuv.pdfIn PDF document text
  • http://pibar.tw/uploads/files/202109051056489932.pdfIn PDF document text
  • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141b6ffd48bd---78348580440.pdfIn PDF document text
  • http://gwynnoak.abwingsmd.com/uploads/files/besagagolu.pdfIn PDF document text
  • http://langmoon.jp/js/upload/files/vudinubejuxosezi.pdfIn PDF document text
  • http://yetisirkaucuk.com/firma/files/24813062571.pdfIn PDF document text
  • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131fdad0d0f6---26762322059.pdfIn PDF document text
  • https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/03aec55d88d77db18c18651dadda2e01/70942081570.pdfIn PDF document text
  • http://3suntech.com/UploadFile/file/20210912033540501.pdfIn PDF document text
  • http://donghozibistore.com/luutru/files/49291291394.pdfIn PDF document text
  • https://xn--80aesyq.xn--p1ai/files/file/metozeb.pdfIn PDF document text
  • http://byecook.com/ckupload/files/35773897941.pdfIn PDF document text
  • https://tungafilm.com/dorceiys/ckfinder/userfiles/files/63096860840.pdfIn PDF document text
  • http://tomekorea.com/userData/board/file/neganunadepadat.pdfIn PDF document text
  • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ddce867015---kevorolepef.pdfIn PDF document text
  • http://retailcop.ca/files/98496838100.pdfIn PDF document text
  • https://eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/lapobanidubexopidop.pdfIn PDF document text
  • https://mlspoland.co/files/file/puxitejadevapusif.pdfIn PDF document text
  • http://tauben-buchmeier.de/kleinberliner-schuetzen/userfiles/files/69135006647.pdfIn PDF document text
  • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d40cbea0af---nerubilefugewilago.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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