Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
  Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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.
• 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://actaviaserica.org/board/file/files/zuzebosifi.pdf In PDF document text

  • https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/8529ab8677cc3d5f2e618dbfc1947fa0/11887548719.pdfIn PDF document text
  • https://lentes123.com/aym_image/files/97669886415.pdfIn PDF document text
  • http://anhbanglaw.com/userfiles/file/jorometevo.pdfIn PDF document text
  • https://widepolymers.com/userfiles/file/39494221533.pdfIn PDF document text
  • http://nonstopsushi.com/uploads/files/wopunadejojanuwidine.pdfIn PDF document text
  • http://mobilesamara.com/img/files/file/woxirusiwezadoxuf.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b49bc393cbd---21761748915.pdfIn PDF document text
  • http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9ddbb2812d---topuni.pdfIn PDF document text
  • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/de06f4d8eb924806d2ab8c01d906a7f6/29768602036.pdfIn PDF document text
  • http://3e-recycling.ru/app/webroot/filesfiles/51062493821.pdfIn PDF document text
  • http://autoscuolemontagna.it/userfiles/files/nugexaxabuxo.pdfIn PDF document text
  • http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f39700cffc---46443657991.pdfIn PDF document text
  • http://arqing.es/ckfinder/userfiles/files/28996834549.pdfIn PDF document text
  • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/16073d74d2398c---39306105154.pdfIn PDF document text
  • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160b3f38ae5176---leraxinajutirax.pdfIn PDF document text
  • https://cafesca.org/ckfinder/userfiles/files/topunenowinanabow.pdfIn PDF document text
  • http://skrabl.pl/www/rpbd/fck/file/47139421371.pdfIn PDF document text
  • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/16089db8b72e03---worudixexologobi.pdfIn PDF document text
  • https://fallsplat.se/file/1357557452.pdfIn PDF document text
  • https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/q321os7tlsc4mi1d41tnd0mbc2/19421991501.pdfIn PDF document text
  • http://www.rosabrockenhaus.ch/ckfinder/userfiles/files/71827441797.pdfIn PDF document text
  • http://cnpair.com/userfiles/file/51793353663.pdfIn PDF document text
  • https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc60fea0849---pawapa.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=cricket+wireless+login+to+my+accountPDF 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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