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
• 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://www.alitec.es/js/ckfinder/userfiles/files/31817630926.pdf In PDF document text

  • http://botosani.ro/img/uploads/file/gawigogegegozemulibulido.pdfIn PDF document text
  • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/1615e1dcfd0fd4---21801489637.pdfIn PDF document text
  • http://obraz-tlt.ru/userfiles/file/luxezenasewebujurusivaj.pdfIn PDF document text
  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/16166bc7511c21---63934905540.pdfIn PDF document text
  • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615385f58069b---58100998955.pdfIn PDF document text
  • http://rzn-house.ru/upload/file/43099826908.pdfIn PDF document text
  • http://sh-ruiyangcpa.com/userfiles/file/2021-10///2021104138539565.pdfIn PDF document text
  • https://escolaalfa.com/userfiles/file/11433601192.pdfIn PDF document text
  • http://xn--80aaaghhaztbcd1agjgbccsgfftf.xn--p1ai/pict/file/64991164666.pdfIn PDF document text
  • http://zs-g.jp/app/webroot/js/ckfinder/userfiles/files/dewaki.pdfIn PDF document text
  • http://somsit.com/ckfinder/userfiles/files/54695241541.pdfIn PDF document text
  • https://mindtrainingsystems.com/userfiles/file/11018662685.pdfIn PDF document text
  • http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/500e05e5fd32c29c7887773a6ff529d5/vatapujojegomonogodanogi.pdfIn PDF document text
  • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/3fe5cf993d3b83697a4b3ca1afa65d96/65997104708.pdfIn PDF document text
  • http://logenamerica.com/userfiles/file/pomuxemidad.pdfIn PDF document text
  • http://yangs-ns.com/ckfinder/userfiles/files/20211028115351.pdfIn PDF document text
  • https://beauti-full.ru/uploads/files/kedujaf.pdfIn PDF document text
  • https://isuzuphonoi.com/data/dulieu/files/jegedunagatik.pdfIn PDF document text
  • https://cambodiadriverservice.com/userfiles/file/95806879057.pdfIn PDF document text
  • http://katour.ru/admin/ckfinder/userfiles/files/felawekupazedib.pdfIn PDF document text
  • http://dichvugiayphep.net/hinhanh_fckeditor/file/debinobuvedufodikoram.pdfIn PDF document text
  • http://emilymillerlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/16303880805.pdfIn PDF document text
  • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f1f8f303db---49363060349.pdfIn PDF document text
  • https://zlatartopalovic.rs/files/46822184382.pdfIn PDF document text
  • http://synergienetwork.net/userfiles/file/49320209303.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Gsjc/~3/tgwjJlsMqHc/uplcv?utm_term=concept+of+leadingPDF 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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