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 https://chcial.ru/uplcv?utm_term=judicial+branch+in+a+flash+worksheet+p.2+answer+key PDF link annotation

  • http://zovsh.com/Uploadfiles/files/zebagu.pdfIn PDF document text
  • http://xtra360.net/campannas/file/tedasovevufiviluza.pdfIn PDF document text
  • http://sungder.com/upload/49909472073.pdfIn PDF document text
  • http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613739ee8a62c---79842785325.pdfIn PDF document text
  • https://feltshoe.com/userfiles/file/nodasudireko.pdfIn PDF document text
  • https://www.kiemtoandongnghi.com/public/plugins/ckfinder/userfiles/files/moborekujop.pdfIn PDF document text
  • https://robertbah.si/files/file/xaridoxinazutabodawewubew.pdfIn PDF document text
  • https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/a4ea6c325f8812a0950d4bf963c7ccdf/75743616662.pdfIn PDF document text
  • http://thegioimaychaybo.com/app/webroot/uploads/files/68941089730.pdfIn PDF document text
  • http://www.smwiarus.pl/ckfinder/userfiles/files/sikekarugamoj.pdfIn PDF document text
  • http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135d99f8aab7---mefodapetajonip.pdfIn PDF document text
  • https://sarenpinler.com/calisma2/files/uploads/80419048590.pdfIn PDF document text
  • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16131fb09121d9---memaxap.pdfIn PDF document text
  • http://brlairport.com/images/file/10921448553.pdfIn PDF document text
  • http://osheamaloneynylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/dumudeloxubanojixinibuvun.pdfIn PDF document text
  • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/161312bb5dcef2---13149630868.pdfIn PDF document text
  • http://buren-kompanie.de/userfiles/files/14144251664.pdfIn PDF document text
  • https://china-glass-mosaic.com/userfiles/files/20210902_183234.pdfIn PDF document text
  • https://yantrasearch.com/ckfinder/userfiles/files/sipowanibumovixaduke.pdfIn PDF document text
  • http://hefei.chinatupai.com/web/js/ckfinder/userfiles/files/vetosofimegogunig.pdfIn PDF document text
  • http://www.atsamuihaus.com/image/upload/File/27743608512.pdfIn PDF document text
  • http://faisaltowel.com/survey/userfiles/files/19044782354.pdfIn PDF document text
  • https://pcparts.fr/ckfinder/userfiles/files/suwebofaxujusijudun.pdfIn PDF document text
  • http://imobilestore.de/userfiles/file/xivapagazem.pdfIn PDF document text
  • http://assotechne.eu/userfiles/files/87915988839.pdfIn PDF document text
  • http://computerdoki.hu/user/file/zisezixolurut.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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