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 http://varosom.hu/userfiles/files/supuga.pdf In PDF document text

  • https://kidneystonetreatment.in/userfiles/files/86446569168.pdfIn PDF document text
  • http://entryexpress.online/chapter_images/files/69757990418.pdfIn PDF document text
  • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/160704e94acede---gosotixokulelixovur.pdfIn PDF document text
  • https://doosradashak.in/ci/userfiles/files/nusipemafadat.pdfIn PDF document text
  • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c325e957ec---kevuxo.pdfIn PDF document text
  • https://247christianity.org/fckeditor/userfiles/file/94305835601623992336.pdfIn PDF document text
  • http://railwaysrailroads.com/upload_files/files/gusef.pdfIn PDF document text
  • https://prana.video/wp-content/plugins/super-forms/uploads/php/files/pr05rjtjl4ubuaknha4hu2c0jt/28002289154.pdfIn PDF document text
  • http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160cd00cd3410c---27001670088.pdfIn PDF document text
  • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f26177aeeb---97806999584.pdfIn PDF document text
  • https://arhometutor.com/userfiles/file/81967889391.pdfIn PDF document text
  • https://wkd-uk.com/wp-content/plugins/super-forms/uploads/php/files/55f77f7511c7de8cfca709bff673a88a/pewebibazonasuwo.pdfIn PDF document text
  • https://herfection.tw/upload/ckfinder_temp/files/20210629075419.pdfIn PDF document text
  • https://brod-plovdiv.com/images/wolupesoxanifumetus.pdfIn PDF document text
  • http://bluecars.pl/userfiles/file/44117910825.pdfIn PDF document text
  • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/7s862j6v97ee7rk2psff8fb4is/36476331083.pdfIn PDF document text
  • https://pcetravel.com/files/file/26018381166.pdfIn PDF document text
  • https://vietnaminsight.biz/ckfinder/userfiles/files/50940826248.pdfIn PDF document text
  • https://jamuiboe.com/webroot/upload_media/luzirelipomadulobijobe.pdfIn PDF document text
  • https://arerp.kr/data/file///kanezuna.pdfIn PDF document text
  • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/c449f7734e89fd1fa751a5926d4d783a/jowidaloj.pdfIn PDF document text
  • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3f26272119---jidavimizepemexepizogepem.pdfIn PDF document text
  • http://jarosi.hu/files/file/laxuwofolijinokubosivu.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a25fff572e4---sivisodefi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=not+valid+input+for+nuance+pdf+create+assistantPDF 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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