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://synerhu.ru/uplcv?utm_term=free+skins+fortnite+generator+2021 PDF link annotation

  • http://orderkai.com/uploads/files/rutapunumulawexol.pdfIn PDF document text
  • http://pro-roubenky.cz/UserFiles/File/rulepituxumeg.pdfIn PDF document text
  • http://samafb.org/uploadfilefiles/gepigorira.pdfIn PDF document text
  • http://yung-shun.com/userfiles/file/34711835481.pdfIn PDF document text
  • http://maduraicaterers.com/app/webroot/js/ckfinder/userfiles/files/kowapomirametaz.pdfIn PDF document text
  • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/161340e674034b---83624013521.pdfIn PDF document text
  • http://ccsilver.kr/files/fckeditor/file/13128512096131a52e82c7a.pdfIn PDF document text
  • http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a7a40be1cc---tujedaketenareminirusopil.pdfIn PDF document text
  • http://floralojistik.com/userfiles/file/wuxixoxebaminawelar.pdfIn PDF document text
  • https://quangcaowebsite.vn/uploads/files/jutika.pdfIn PDF document text
  • https://selapro.com.au/application/third_party/ckfinder/userfiles/files/54731106113.pdfIn PDF document text
  • http://dental-forum.ru/userfiles/file/54522256719.pdfIn PDF document text
  • http://xingzhongjing.com/userfiles/file/20210902100750_1685255503.pdfIn PDF document text
  • http://doks-films.com/pcms/content/file/fizataferanapibibujaso.pdfIn PDF document text
  • http://www.yankey.com.tw/demo/public/editor/ckfinder/upload/user_upload/files/xejamikowed.pdfIn PDF document text
  • http://scherzerpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/binuloji.pdfIn PDF document text
  • http://sun-tes.ru/files/file/fabamagobizipuwapo.pdfIn PDF document text
  • http://specimport.by/files/files/romaxovixiwopagovamiguvi.pdfIn PDF document text
  • https://tenfci.org/userfiles/file/15307875304.pdfIn PDF document text
  • https://onlinendttraining.com/files/13537687118.pdfIn PDF document text
  • http://taiwan-tsai.com/upload/files/burerasimokidugurodoxow.pdfIn PDF document text
  • http://chiron-ventures.com/chiron/home/img/upload/files/210909075121476755nfdxf.pdfIn PDF document text
  • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ffacfd8b53---50042684932.pdfIn PDF document text
  • http://daiichilogistics.com/uploads/news_file/kufaxiguda.pdfIn PDF document text
  • https://olivierdaulte.com/ckfinder/userfiles/files/90762780734.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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