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://infrive.ru/uplcv?utm_term=ejemplos+de+sistemas+de+ecuaciones+3x3+resueltos PDF link annotation

  • http://maxtarget.by/ckfinder/userfiles/files/gelijobi.pdfIn PDF document text
  • http://stsaischoolamritsar.com/slbdavbatala/userfiles/file/wafosiximeranawulejuvoj.pdfIn PDF document text
  • https://feniks9.ru/ckfinder/userfiles/files/78684722203.pdfIn PDF document text
  • http://yer-krasnodar.ru/ckfinder/userfiles/files/60486601078.pdfIn PDF document text
  • http://akcjonariusz.com/UserFiles/file/zokodurirugepesavo.pdfIn PDF document text
  • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607e410497c7a---40771599838.pdfIn PDF document text
  • https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/2fa6e721840bb64a18144030ba0df375/92840354432.pdfIn PDF document text
  • http://banglatalkies.com/dynamic-images/cms/file/44858588647.pdfIn PDF document text
  • http://cga82.com/admin/File/90140443625.pdfIn PDF document text
  • http://ibtaker.ps/userfiles/file/forizogekikidudopo.pdfIn PDF document text
  • http://yejida.com/userfiles/file/12782225496.pdfIn PDF document text
  • http://agriturismocorteerbatici.it/userfiles/files/62685384421.pdfIn PDF document text
  • http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1610a0868a53b5---nopukamefexofekomobafiko.pdfIn PDF document text
  • http://dycelife.com/userfiles/file/72614319829.pdfIn PDF document text
  • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607d370bcdf38---silasemibujimew.pdfIn PDF document text
  • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609209bd8db4a---99124156753.pdfIn PDF document text
  • http://toyotaprius-custom.com/js/upload/files/mipifos.pdfIn PDF document text
  • https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/1f570c9b8bc1cfb1367573ecc3abf547/zirowilidoseka.pdfIn PDF document text
  • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/qs3kr34cs3dc0nlnjkgearkdj7/11626506600.pdfIn PDF document text
  • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160746d7d01934---64478482332.pdfIn PDF document text
  • https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/m8ujh3b93u1c67u4js1gerimie/murizewaj.pdfIn PDF document text
  • http://titadoorbinhduong.com/upload/files/fevesotabimo.pdfIn PDF document text
  • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086bd7a956ce---rumimon.pdfIn PDF document text
  • http://izdo.org/img/userfiles/files/veletamikuravixoge.pdfIn PDF document text
  • http://aodaibooking.com/FileData/ckfinder/files/20210601_594484BC0A6AEC7F.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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