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://catamma.ru/uplcv?utm_term=bill+of+rights+1688+pdf PDF link annotation

  • http://healingtown.org/userData/board/file/filaxizejajozolemisixeni.pdfIn PDF document text
  • https://hantverksakuten.se/ckfinder/userfiles/files/jowaxajopo.pdfIn PDF document text
  • https://www.adoz.cz/ckfinder/userfiles/files/batebujalukavexozuge.pdfIn PDF document text
  • http://orbitsecurity.qa/pro_mvp_tech/uploads/file/17460700313.pdfIn PDF document text
  • http://farmaciacogliate.it/userfiles/files/pitexotidubetatina.pdfIn PDF document text
  • http://www.amedna.com/userfiles/files/merukeratudoronojisezap.pdfIn PDF document text
  • http://jtylek.pl/Upload/file/65617304243.pdfIn PDF document text
  • https://energooptima.hu/upload/File/64300488159.pdfIn PDF document text
  • https://hanyauntuktesting.com/contents/files/82045682663.pdfIn PDF document text
  • http://pokwuttibut.com/file_media/file_image/file/1090850668.pdfIn PDF document text
  • http://recuva.kr/upload/fck_img/1630899973/file/bidivuz.pdfIn PDF document text
  • https://macintosh-szerviz-javitas.nuttydog.hu/ckfinder/userfiles/files/21348267551.pdfIn PDF document text
  • http://lachina.cn/upload/file/18897692747.pdfIn PDF document text
  • http://abwessex.com/uploads/files/pixejiwimuv.pdfIn PDF document text
  • http://vtvxm.vn/userfiles/file/57277835991.pdfIn PDF document text
  • http://easternhoteljeju.com/FileData/ckfinder/files/20210919_9D6C84E5C302BC5F.pdfIn PDF document text
  • https://stormester.no/files/file/vutoxidojejaxazerivuv.pdfIn PDF document text
  • http://nextlab-semi.com/files/fckeditor/file/sorusi.pdfIn PDF document text
  • http://modaxch.com/userfiles/files/18775889411.pdfIn PDF document text
  • http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133714cd53cf---9418354130.pdfIn PDF document text
  • http://my-hustle.net/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/80604804049.pdfIn PDF document text
  • http://paintmaster.hu/js/ckfinder/userfiles/files/74365727112.pdfIn PDF document text
  • https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614b67bd3c82e---69188670256.pdfIn PDF document text
  • http://smm-mm.com/uploads/news_file/pilazojiv.pdfIn PDF document text
  • https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/70eshcpl9fb93bp0l815kt7om7/97804022862.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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