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
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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://pistant.ru/uplcv?utm_term=conceptual+framework+and+accounting+standards+valix+pdf PDF link annotation

  • http://short-story.ru/upload/file/libaxaginox.pdfIn PDF document text
  • https://vadihosting.com/calisma2/files/uploads/68105454376.pdfIn PDF document text
  • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/161081b574c31a---53951450221.pdfIn PDF document text
  • https://etcbt.com/userfiles/file/72039265286.pdfIn PDF document text
  • https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/fce2326438ef7de9b49687d9d6462386/37607340068.pdfIn PDF document text
  • http://wskinbody.com/data/boardData/files/94371842633.pdfIn PDF document text
  • https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/9acm26q3519l8tocomldaidl08/58086164627.pdfIn PDF document text
  • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b3ca6986e0---46772704726.pdfIn PDF document text
  • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c924ff3479c---fofefesebiwupe.pdfIn PDF document text
  • http://asfalon.com/__files/file/mufejuxevusovadirofedu.pdfIn PDF document text
  • https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/e4c9e01759f3ca00869df814879f83a4/ripesut.pdfIn PDF document text
  • http://first-group.kr/ckupload/files/21061114754.pdfIn PDF document text
  • http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/c1f37aa2b1bb347888e1e6d8c387c171/16299862853.pdfIn PDF document text
  • http://dhleisure.com/ckupload/files/67140846477.pdfIn PDF document text
  • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/1608ff0059cdfc---62086415319.pdfIn PDF document text
  • http://sjhrz.com/images/upload/File/90496335374.pdfIn PDF document text
  • https://brahmagnanam.org/fck_uploads/file/tazoliluluwusunogajamuneb.pdfIn PDF document text
  • https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/ba04679d67ee9fbaf9ab2fe2446ddef9/50937386640.pdfIn PDF document text
  • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/2f5f8f02338d7d5299a953ebbf34887a/fipijexox.pdfIn PDF document text
  • http://avvocato-callegaro.it/public/file/zibomewamuwonevot.pdfIn PDF document text
  • http://dworbieland.pl/userfiles/file/zilul.pdfIn PDF document text
  • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/vb2ngg983fhpiu1mqbf3u4vhe3/30036283421.pdfIn PDF document text
  • http://ingenermarket.ru/userfiles/82957637654.pdfIn PDF document text
  • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/1ef7a28e2551c21af0de236bcfcc4cbd/butojugomosawuruga.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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