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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://laborke.ru/uplcv?utm_term=rrb+group+d+2018+question+paper+pdf+download+in+english PDF link annotation

  • http://ginzaramen.us/uploads/files/pigidolujivuto.pdfIn PDF document text
  • https://medtek.vn/storage/file/22651850138.pdfIn PDF document text
  • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/7oo8bpfn62qu8eoobdbnrs1pkv/25412191332.pdfIn PDF document text
  • https://hoavily.com/uploads/files/25560360493.pdfIn PDF document text
  • http://eperon-kochersberg.com/img_db/95110005401.pdfIn PDF document text
  • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc6fbeabdc---67333241136.pdfIn PDF document text
  • https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/l859u2avee40oac557l2pd8n8r/bukesor.pdfIn PDF document text
  • https://ikitellirezistans.com/upload/files/kifabe.pdfIn PDF document text
  • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/d5f4c86ccfa4b6424eb105fbc735d238/vivujotigenimazal.pdfIn PDF document text
  • http://www.sanruou.com/app/webroot/uploads/files/jesakonumapopu.pdfIn PDF document text
  • http://mini-garden.ru/userfiles/file/24340066992.pdfIn PDF document text
  • http://garmagostaran.com/Upload/file/kakugugunurase.pdfIn PDF document text
  • http://vyveva.eu/UserFiles/File/rusorebesumurobilopi.pdfIn PDF document text
  • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16093a3da5e6c4---82092453832.pdfIn PDF document text
  • http://agendatourvietnam.com/hinhanh/file/69453480416.pdfIn PDF document text
  • https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/96fb1ad0e0e3b7a2db156692aaa35244/givador.pdfIn PDF document text
  • http://maximaviajes.com/FCKfiles/file/30438675667.pdfIn PDF document text
  • https://usssecuritate.ro/userfiles/file/60327405180.pdfIn PDF document text
  • http://4x4autok.hu/userfiles/files/26380871627.pdfIn PDF document text
  • http://tokyoto.pl/UserFiles/file/62799038280.pdfIn PDF document text
  • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/672fe80fd6bba5af5a2038579f1812ad/81234536279.pdfIn PDF document text
  • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a69cba25080---97021797720.pdfIn PDF document text
  • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c18faa8ba5c---razaxilamasi.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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