Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://krisoc.ru/uplcv?utm_term=science+forces+worksheets+ks3 PDF link annotation

  • https://smwebtechnology.com/arishayurveda.com/userfiles/file/19771994609.pdfIn PDF document text
  • http://gptools.net/userfiles/file/83191827599.pdfIn PDF document text
  • http://ayurveda-shiatsu-nice.com/upload/files/jeberoba.pdfIn PDF document text
  • http://tydafa.com/dafa/uploadfiles/20210906112333.pdfIn PDF document text
  • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613059df16f68---saduvubemafowuzana.pdfIn PDF document text
  • https://vwb.mrv-educationservices.com/content_file/files/megurugiju.pdfIn PDF document text
  • http://bannermaul.com/userData/board/file/3196914148.pdfIn PDF document text
  • https://ipic.vn/userfiles/file/bavokezabewuwikefoja.pdfIn PDF document text
  • http://lixupeng.com/uploads/files/20330133671.pdfIn PDF document text
  • http://spakimthi.com/upload/files/fafenotaruneso.pdfIn PDF document text
  • http://www.la-rocca.pl/app/webroot/files/files/37912746218.pdfIn PDF document text
  • https://portalkucharski.pl/app/webroot/media/files/sodezimerugazipumalesoso.pdfIn PDF document text
  • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/161344183273b8---93252645362.pdfIn PDF document text
  • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137910b14ea4---6661401627.pdfIn PDF document text
  • http://xn----ctbguteehkho5h.xn--p1ai/ckfinder/userfiles/files/vaxetogemuwu.pdfIn PDF document text
  • http://paillasse.hu/userfiles/file/wogaxemezek.pdfIn PDF document text
  • https://adeptos.clevercloud.pt/images/items/files/64890141627.pdfIn PDF document text
  • http://thietbimaugiao.vn/Images_upload/files/povoronakofudaxitorena.pdfIn PDF document text
  • https://www.q-jin.ne.jp/ckfinder/userfiles/files/35892853814.pdfIn PDF document text
  • https://meganimal.pt/site/upload/file/jimafufadoge.pdfIn PDF document text
  • https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/2cf15f46e79a7a05dd1824c893f4f8b6/mufunewege.pdfIn PDF document text
  • http://studioriggio.it/userfiles/files/96037488493.pdfIn PDF document text
  • http://eternaseguros.net/files/files/tiwowiwiwup.pdfIn PDF document text
  • https://arch.ua/ckfinder/userfiles/files/wunufozusufe.pdfIn PDF document text
  • 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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