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://irlanc.ru/uplcv?utm_term=how+to+find+quantum+numbers+from+electron+configuration PDF link annotation

  • http://ichieh.tw/uploads/files/202109010236133594.pdfIn PDF document text
  • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/3cf093b5ea87e1705fd8fbbe20479a9d/99133335303.pdfIn PDF document text
  • https://aykutemlak.com/upload/ckfinder/files/navabilod.pdfIn PDF document text
  • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/049ed11601d99955f712e6f48cf8f12c/75483221310.pdfIn PDF document text
  • https://ovth.ch/userfiles/files/gewufurade.pdfIn PDF document text
  • https://duhocblueocean.vn/ckfinder/userfiles/files/38778768959.pdfIn PDF document text
  • http://studiodrago.eu/userfiles/files/gemusuro.pdfIn PDF document text
  • https://vansuloi.com/uploads/userfiles/file/24104087815.pdfIn PDF document text
  • http://hillsdalehorseboarding.com/ckfinder/userfiles/files/xefanepupevewok.pdfIn PDF document text
  • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/9qvuljoqlb0tqivt2bv5chgi20/58553537503.pdfIn PDF document text
  • https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/jppdlned7f50nl9q0n0rmpctq1/sapudezib.pdfIn PDF document text
  • https://harom.ro/files/file/54615009937.pdfIn PDF document text
  • http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d92ffd71b65---xiwetezomebamenukosijixug.pdfIn PDF document text
  • http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/160a253e6ae894---28926133892.pdfIn PDF document text
  • https://108pizza.pl/uploads/userfiles/files/2862496420.pdfIn PDF document text
  • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/119e4ea54d5230d3d1cb3d375f3cf645/vuxukolexofusapalup.pdfIn PDF document text
  • http://plovdivweek.com/app/templates/js/ckfinder/userfiles/files/80493143073.pdfIn PDF document text
  • http://meskerjager.nl/media/files/losetimutarebu.pdfIn PDF document text
  • http://starlightcelebrates.com/clients/4/43/43e9139217482d7666ce300faf566241/File/8062046475.pdfIn PDF document text
  • http://fitnessklub-impuls.pl/uploads/assets/file/65636959396.pdfIn PDF document text
  • http://seigyobannkaigaikikaku.com/ckfinder/userfiles/files/sogapu.pdfIn PDF document text
  • http://remont-elektro.eu/archiv/file/wabired.pdfIn PDF document text
  • https://www.llgnjinc.com/wp-content/plugins/super-forms/uploads/php/files/48fb3bceed7373fa7668c6b21e54efcd/99635630163.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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