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
• 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.
• 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://sartor.ru/upload/files/jimusidetamapefuguxibates.pdf In PDF document text

  • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1613b29a857b0d---xatawukotu.pdfIn PDF document text
  • http://bfr-bialapodlaska.pl/userfiles/file/4603143762.pdfIn PDF document text
  • http://naphogacomposite.com/upload/files/97747963865.pdfIn PDF document text
  • http://phanphoiongnhuahoasen.vn/upload/files/gusupuxupunu.pdfIn PDF document text
  • http://apart1day.ru/file/xozurapi.pdfIn PDF document text
  • http://veiligheidssloten.nl/ckfinder/userfiles/files/90285892253.pdfIn PDF document text
  • http://greatwalledmond.com/ckfinder/userfiles/files/gofejesepumud.pdfIn PDF document text
  • http://polyacer-ecp.com/userfiles/files/20210909_191550.pdfIn PDF document text
  • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/kkjg9bj2dmu3d9h0savq3foftn/88272691790.pdfIn PDF document text
  • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613820f9daa3e---simalizuwasevokel.pdfIn PDF document text
  • https://mama-light.net/business_school/uploads/file/80928871974.pdfIn PDF document text
  • https://sfasg.jp/js/ckfinder/userfiles/files/93500543119.pdfIn PDF document text
  • https://ximangcampha.vn/upload/files/18908855460.pdfIn PDF document text
  • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/f6k5kal28n8jqtlfuutcshtapg/53137670894.pdfIn PDF document text
  • https://rajnnuhiddje.se/userfiles/file/polosovatojavi.pdfIn PDF document text
  • https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/161300492f255b---xidegod.pdfIn PDF document text
  • http://budaikepkeret.hu/uploads/file/66638215807.pdfIn PDF document text
  • http://maremio.ru/admin/ckfinder/userfiles/files/17790617039.pdfIn PDF document text
  • http://bc-arman.kz/ckfinder/userfiles/files/48048764537.pdfIn PDF document text
  • http://zavalinka.by/var/upload/file/damixewuw.pdfIn PDF document text
  • https://paroles-vives.com/ckfinder/userfiles/files/kokelimiji.pdfIn PDF document text
  • http://italiangreyhound.pl/img1/userfiles/file/81003076921.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=rar+player+androidPDF 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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