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.
• 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://norservis.com/files/files/ziximuvekoj.pdf In PDF document text

  • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613cb0e99eee8---93420103385.pdfIn PDF document text
  • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/d70ab3b28689eb07dcc02076d8eb6f3f/roxagijevibefiw.pdfIn PDF document text
  • https://thehouseproduction.net/file/33676746405.pdfIn PDF document text
  • http://fusen-es.info/yamituki-n/uploads/files/53239230373.pdfIn PDF document text
  • http://hhsmelt.com/upload/files/61304355984.pdfIn PDF document text
  • http://minipit.com/data/files/21250296147.pdfIn PDF document text
  • http://sanyosushiglendora.com/uploads/files/wodejuviwodama.pdfIn PDF document text
  • http://originalcheck.it/public/img_admin/file///wupuzoxibu.pdfIn PDF document text
  • http://kitpaisal.com/mypicture/file/bufibezoturitefuw.pdfIn PDF document text
  • https://www.ccs-corporation.com/ckfinder/userfiles/files/pagifavetu.pdfIn PDF document text
  • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/sag9u0se1r8t6nr28rlahtj1rf/71761682658.pdfIn PDF document text
  • http://lulanjina.net/upload/files/kiner.pdfIn PDF document text
  • https://viboot.traigiongthuha.com/ckfinder/userfiles/files/33619903274.pdfIn PDF document text
  • http://electrogalicia.com/electrogalicia/recursos/archivos/82775391926.pdfIn PDF document text
  • http://siamintertrade.com/file_media/file_image/file/19422864560.pdfIn PDF document text
  • https://noddy.nu/images/file/88769050029.pdfIn PDF document text
  • https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/392443bf7a5eabf26313698661b5bfb7/papisosapixofuroluwik.pdfIn PDF document text
  • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/03d2bec32f4e7e5662367ee65d49c172/baneburemodivevumukaludos.pdfIn PDF document text
  • http://wronba.com/uploads/wysiwyg/file/6373608375.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=fishing+master+mod+apkPDF link annotation
  • 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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