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
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/1ql6pni98m4hktbvgmo03751oi/46983701351.pdf In PDF document text

  • https://braindevelopmentmaps.org/userfiles/files/43484054008.pdfIn PDF document text
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ceeb56c99c---9805546431.pdfIn PDF document text
  • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce727b5900---kuniba.pdfIn PDF document text
  • http://geoodwierty.pl/files/file/zelat.pdfIn PDF document text
  • http://ciccioinpentola.com/userfiles/files/zejewagixexuvum.pdfIn PDF document text
  • https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/8f95f0ad9a2b0774d9b66fb5c761dda3/jorilesadexuxunovifonive.pdfIn PDF document text
  • http://yuanyoujie.vip/userfiles/file/46488996343.pdfIn PDF document text
  • http://xn--vb0b83rba554gca.kr/page_data/file/20210903113715.pdfIn PDF document text
  • http://ampletrekking.com/userfiles/file/xopiviguf.pdfIn PDF document text
  • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/727eaa7fa9697443a6e35153e05fbf2c/wezivuperobanobab.pdfIn PDF document text
  • http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cf0b936dbc---44724840061.pdfIn PDF document text
  • http://www.alex-vasilkov.ru/images/wisdom/file/modedefi.pdfIn PDF document text
  • http://arsvet.ru/img/upload/2120894603.pdfIn PDF document text
  • https://iwnta.com/userfiles/file/jesaporivebiralon.pdfIn PDF document text
  • http://ttccid.com/userfiles/file/5635060450.pdfIn PDF document text
  • https://kanalprofi.at/UserFiles/file/67486497256.pdfIn PDF document text
  • https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/99ddc78f2b2cee81bb7021d420c3a22a/xinevidiboxeguwisafejolu.pdfIn PDF document text
  • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd6f4387624---58572301018.pdfIn PDF document text
  • https://oykufestivali.com/ckfinder/userfiles/files/punel.pdfIn PDF document text
  • http://agiteam.org/clients/b/b0/b0c4817036ef1cb73596cc935f3fa86d/File/82574136969.pdfIn PDF document text
  • https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/970813dcbd0b802dd6d8c811f6255297/taruwotijik.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=pdf+reducer+size+below+1+mbPDF link annotation
  • http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/e69f2faddb0a005fddbc42da26b03c2c/89499068770.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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