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.
• 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://krisoc.ru/uplcv?utm_term=android+bootloader+unlock+tool PDF link annotation

  • http://daechienglishpark.com/ckfinder/userfiles/files/6119856364.pdfIn PDF document text
  • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/161430b303faf4---65008768890.pdfIn PDF document text
  • http://123podkrovie.sk/editor_uploads/files/bewavobobovijokukamiba.pdfIn PDF document text
  • http://zlhk.ru/upload_picture/file/dixovuvapiwituramopikegak.pdfIn PDF document text
  • http://koryosushi.com/uploads/files/51280590350.pdfIn PDF document text
  • https://grandplaza.bg/uploads/assets/file/83084002849.pdfIn PDF document text
  • http://voszveszprem.hu/_user/file/26841464117.pdfIn PDF document text
  • http://spbmedaks.ru/sites/default/files/uploads/74983532699.pdfIn PDF document text
  • https://mekongtransport.com/upload/userfiles/files/pizijijuduvisixuko.pdfIn PDF document text
  • http://studiolegalebisantis.it/userfiles/files/sosovasozoj.pdfIn PDF document text
  • http://kuresi-kaitori.com/upload/content_pic/files/filesogavijisamoj.pdfIn PDF document text
  • http://cobmedia.hu/include/42188538643.pdfIn PDF document text
  • http://0965818789.com/CKEdit/upload/files/83452270521.pdfIn PDF document text
  • https://iieng.org/editor/ckfinder/userfiles/files/23750545641.pdfIn PDF document text
  • http://safeabortionnepal.com/userfiles/file/95606112252.pdfIn PDF document text
  • http://orderkiwicafe.com/uploads/files/34519067819.pdfIn PDF document text
  • http://hydrem.ru/images/file/folefopijagireromafufe.pdfIn PDF document text
  • http://le383.com/uploads/files/zedunemusafuxaforevo.pdfIn PDF document text
  • http://tea-ra.com/user_data/upload/save_image/files/21630660960.pdfIn PDF document text
  • http://dxczx.com/ckfinder/userfiles/files/20210907_230547.pdfIn PDF document text
  • http://gilendor.cz/userfiles/file/37417579722.pdfIn PDF document text
  • http://ilovehikari.com/uploads/files/zoporedigoxi.pdfIn PDF document text
  • https://dijitalsanat.link/upload/files/bafeji.pdfIn PDF document text
  • http://dh-cell.com/ckfinder/userfiles/files/nureb.pdfIn PDF document text
  • https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/b95dd9cf5adacf5183c49d89b4960556/97936563303.pdfIn PDF document text
  • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f0de9d5a01---fefunumavixugumefuk.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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