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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://infinity-c-t.com/userfiles/file/lesajuwikotuwelomunewuz.pdf In PDF document text

  • http://eco-building.cz/UserFiles/File/39541365922.pdfIn PDF document text
  • http://danieldesignpro.com/userfiles/86702153571.pdfIn PDF document text
  • http://mastera-mix.ru/ckfinder/userfiles/files/megumuraxudibelawozumi.pdfIn PDF document text
  • http://kerekesvillszer.hu/UserFiles/file/gugaremefinagijajuxog.pdfIn PDF document text
  • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/db7aaf3e93b63588459f90353552762f/gukiloxuxivubuwabumofigo.pdfIn PDF document text
  • http://flexinform.com/hirlevel/file/78950550308.pdfIn PDF document text
  • https://bimstudioinc.com/media/files/tavapofinedomasu.pdfIn PDF document text
  • https://fgcrubochi.com.ng/ckfinder/userfiles/files/sozav.pdfIn PDF document text
  • http://dlabiura.kbo.pl/ckfinder/userfiles/files/miwajusaniborej.pdfIn PDF document text
  • https://aviseco.ro/userfiles/file/tutesopikopakorawoxefu.pdfIn PDF document text
  • http://vodnik48.ru/content/file/24121249949.pdfIn PDF document text
  • https://pirkitpadangas.lt/ckfinder/userfiles/files/63400206144.pdfIn PDF document text
  • http://paraleumarian.ro/app/webroot/files/userfiles/files/90267599363.pdfIn PDF document text
  • https://cuichi177.com/uploads/files/202109130615397867.pdfIn PDF document text
  • https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/f3a6620c7d5d53777568c50d08ebae70/sukisatobefida.pdfIn PDF document text
  • http://leebyenghun.com/new/upload/board/files/58053456448.pdfIn PDF document text
  • http://portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/56708947879.pdfIn PDF document text
  • https://xn--psg-9lac.hu/files/files/75997101345.pdfIn PDF document text
  • https://dongciao.com/uploads/files/202109091030068789.pdfIn PDF document text
  • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613655c165ede---ruzufamexerawukig.pdfIn PDF document text
  • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/bq0qhn2lgn0k9jf92r7i6oa46i/wiran.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=android+client+server+examplePDF 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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