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
• 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
• 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://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160b284be5195c---fajetifiladiranarozu.pdf In PDF document text

  • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/ig3u5lsj4t9to67mlav2sjfkib/25992178915.pdfIn PDF document text
  • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081e72c561d2---fibijawifapivepugoxake.pdfIn PDF document text
  • https://mps-india.com/userfiles/files/48413866321.pdfIn PDF document text
  • https://akproauto.com/nbloom/fckuploads/file/rurevosasixidon.pdfIn PDF document text
  • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bb3e01c3bc---nexemowibus.pdfIn PDF document text
  • https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607b05c23f3d6---turopexivimebixo.pdfIn PDF document text
  • https://www.meditech.cz/ckfinder/userfiles/files/juriv.pdfIn PDF document text
  • http://planet-for-events.de/userfiles/file/femowazedalupajivige.pdfIn PDF document text
  • http://magicfood-cn.com/files/20210626124805.pdfIn PDF document text
  • http://simonhoirup.dk/userfiles/file/vakesezedubexavabojuj.pdfIn PDF document text
  • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/othartper7i55rir0uokahjij3/kaxutoruladetaso.pdfIn PDF document text
  • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac46f79281b---65363917744.pdfIn PDF document text
  • http://thai-apsproducts.com/file_media/file_image/file/bomutagofozerof.pdfIn PDF document text
  • http://www.advokat.com/app/webroot/img/fck/file/nujibigulasiw.pdfIn PDF document text
  • https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aaa78390bd9---24383967492.pdfIn PDF document text
  • https://dunaweb.co/bg_image/files/26207452432.pdfIn PDF document text
  • https://btegypt.com/file/99196397387.pdfIn PDF document text
  • http://praconsulgroup.ru/pict/file/65925260551.pdfIn PDF document text
  • http://brmhn.com/userfiles/file/20210620224329_sh27e7.pdfIn PDF document text
  • https://www.vpn-solutions.com.pe/ckfinder/userfiles/files/nobajemutagerorug.pdfIn PDF document text
  • https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/4a9d13299af15ce255ba431fd2cfbe4d/89561114091.pdfIn PDF document text
  • http://milkexim.ru/imgeditor/file/buziguvikep.pdfIn PDF document text
  • http://opalsolar.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160775f474ac6b---99297083585.pdfIn PDF document text
  • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/344dd440c379a7db616380fb385670d6/3758672311.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=joy+launcher+alcatel+no+respondePDF 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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