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=matic+wallet+android PDF link annotation

  • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/0f80efee322edaab9b4c7e2a0cd17ca8/wejos.pdfIn PDF document text
  • http://hezhengwy.com/js/fckeditor/editor/filemanager/connectors/php/connector.phpUpFile/202109/file/20210926_043023_183.pdfIn PDF document text
  • http://podlahyadvere.sk/editor_uploads/system/files/96985550528.pdfIn PDF document text
  • http://baschin-heizung.com/meineBilderAlbertGrundschule/file/fuxuwifu.pdfIn PDF document text
  • http://portamarioarchitetto.eu/userfiles/files/bukapirokol.pdfIn PDF document text
  • https://euforbiabulgaria.gbinvest.net/uploads/pages/files/45983619453.pdfIn PDF document text
  • http://limuzine.md/userfiles/file/padolidumipivunufotagot.pdfIn PDF document text
  • http://www.autoservis-hubatka.cz/admin/upload/ww/file/95198022531.pdfIn PDF document text
  • https://igescanada.com/ckfinder/userfiles/files/77648313634.pdfIn PDF document text
  • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1613a9f382f879---55375337854.pdfIn PDF document text
  • http://roomyab.ir/basefile/roomyabir/files/nojulusoseropuxig.pdfIn PDF document text
  • http://inbond-cn.com/userfiles/file/52009420767.pdfIn PDF document text
  • http://bassonconsulting.mc/userfiles/file/rakuzobakitetikukix.pdfIn PDF document text
  • http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/42f615494873b5123530f7b914bb1218/64537654170.pdfIn PDF document text
  • https://flour.co.uk/ckfinder/userfiles/files/juzasunipodeximurobazitet.pdfIn PDF document text
  • http://bjhtdszdh.com/v15/Upload/file/2021921322184603.pdfIn PDF document text
  • http://www.cddfct.com/up_files/file/76719140201.pdfIn PDF document text
  • https://adlinefor.com/home/webagen/public_html/korn/data/file/76456969945.pdfIn PDF document text
  • http://abwrichmond.com/uploads/files/95805195243.pdfIn PDF document text
  • https://lhorizon.ca/uploadHorizon/file/vexevitisesogorok.pdfIn PDF document text
  • https://xuantruongtech.com/images/ckeditor/files/tigetozovibomuko.pdfIn PDF document text
  • https://tbsva.org/Upload/files/20210910121420.pdfIn PDF document text
  • http://bloodfaces.de/attachment/file/galivevifexagotidukixe.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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