Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
  Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
• Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://coretry.ru/uplcv?utm_term=minecraft+unblocked+java.
• 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://coretry.ru/uplcv?utm_term=minecraft+unblocked+java PDF link annotation

  • http://benetalent.com/upload/files/kegeremulivem.pdfIn PDF document text
  • https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/bdb76d9545f52c5399746aedf1833546/33729073332.pdfIn PDF document text
  • http://isystem.hu/userfiles/file/medaf.pdfIn PDF document text
  • http://bodemveenweiden.nl/bodem-veenweiden-img/rivezulawit.pdfIn PDF document text
  • http://pribatu.lamilagrosaimport.com/images/files/12670204220.pdfIn PDF document text
  • http://thcscatquea.hoaiduc.edu.vn/ckfinder/userfiles/files/78413529407.pdfIn PDF document text
  • http://hkxhjfc.ltd/uploads/files/20210902100811.pdfIn PDF document text
  • https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/71126e78631d35409569f0871ccb0906/zujilunuw.pdfIn PDF document text
  • https://gifarlcm.com/upfiles/editor/files/jabipafetaj.pdfIn PDF document text
  • https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/dl3drlducq95845v3o3aqimssp/64162493755.pdfIn PDF document text
  • https://www.opsclown.it/ckfinder/userfiles/files/87749843062.pdfIn PDF document text
  • https://surupaceanu.ro/ckfinder/userfiles/files/jiviminos.pdfIn PDF document text
  • http://www.mbk-montage.nl/ckfinder/userfiles/files/35791218104.pdfIn PDF document text
  • https://yenicekentkaplicasi.com/userfiles/file/4423821444.pdfIn PDF document text
  • https://www.alapan.org/fckimages/file/fapamenadeluzadasi.pdfIn PDF document text
  • https://www.nvsrolko.org/ckfinder/userfiles/files/dujodiz.pdfIn PDF document text
  • https://denimder.org/resimler/files/7298989928.pdfIn PDF document text
  • http://aarogyamedico.com/userfiles/file/keforemefit.pdfIn PDF document text
  • http://amrapalispot.com/userfiles/file/zakesowite.pdfIn PDF document text
  • http://kanalizace-ul.cz/userfiles/file/27454414118.pdfIn PDF document text
  • http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613031e314628---rodeganasolawejotifixapam.pdfIn PDF document text
  • https://detectagsafety.com/ckfinder/userfiles/files/3704866487.pdfIn PDF document text
  • http://soles2walk.com/data/file/nadafi.pdfIn PDF document text
  • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613b1af61df8b---rurezigofubenigo.pdfIn PDF document text
  • http://thevalleytrader.com/files/51773850727.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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