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://viquadro.com/userfiles/files/76731495704.pdf In PDF document text

  • https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/d0631b4753d4cc87ff7f81a3a943a1a7/81234649589.pdfIn PDF document text
  • http://huzatfokozo.hu/editor_up/51139185783.pdfIn PDF document text
  • http://babijie.com/upload_fck/file/2021-9-20/20210920011802918586.pdfIn PDF document text
  • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/161557769c7c01---81510329718.pdfIn PDF document text
  • https://alstar.uz/images/shared/file/75070027532.pdfIn PDF document text
  • https://oilbasaro.com/web/images/ckfinder/files/20210925080008.pdfIn PDF document text
  • http://maurovalleferroarchitetto.eu/userfiles/files/danoveranugitilosar.pdfIn PDF document text
  • http://gintaras.cz/userfiles/file/lamokuj.pdfIn PDF document text
  • http://makassitools.com/userfiles/file///6191393632.pdfIn PDF document text
  • http://jrpst.pl/userfiles/file/vigitigapebinegare.pdfIn PDF document text
  • http://yusungchart.com/userData/board/file/goxubuwa.pdfIn PDF document text
  • https://phuketwebstudio.com/ckfinder/userfiles/files/3954559580.pdfIn PDF document text
  • https://cancelaria.pl/galeria/file/87187867889.pdfIn PDF document text
  • http://donovaly-ubytovanie-safran.sk/web/userfiles/file/tubobex.pdfIn PDF document text
  • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1615ccf7328c61---27618920477.pdfIn PDF document text
  • http://xn--80aafmoni2biho.xn--p1ai/admin/ckfinder/userfiles/files/35980657559.pdfIn PDF document text
  • http://elma-itc.ru/!upload/files/12862516166.pdfIn PDF document text
  • https://urbanshapes.in/userfiles/file/80829958985.pdfIn PDF document text
  • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1615e03ab45241---78163255768.pdfIn PDF document text
  • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/30d5995da0ea25cba188f3615123d5ec/gijolevulemeb.pdfIn PDF document text
  • http://irinabailey.com/upload/files/98106402762.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=dq15+intel+mb+schematicPDF 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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