Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Fake CAPTCHA with command-running instructions critical SE_FAKE_CAPTCHA_CLICKFIX
  Document combines fake CAPTCHA or human-verification language with instructions to paste or run a command — a high-confidence ClickFix pattern
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
  Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
• 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 http://kyanite.tv/userfiles/file/virapijipujoxexaz.pdf In PDF document text

  • http://slxiang.com/v15/Upload/file/2021912191326169.pdfIn PDF document text
  • https://speculatio.in/userfiles/file/rokarazagalifenorix.pdfIn PDF document text
  • https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/f164b944dc5deeb9cdbf0a76f30cff88/83158313248.pdfIn PDF document text
  • https://educhina.mn/editor/files/jowosuxetenoj.pdfIn PDF document text
  • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/161304bf34d1a0---figibotowewe.pdfIn PDF document text
  • http://kbo.pl/ckfinder/userfiles/files/zejesiti.pdfIn PDF document text
  • http://caythuocdangian.net/images/files/74811311160.pdfIn PDF document text
  • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16143ed40b31ca---99228092640.pdfIn PDF document text
  • https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/8f3kipttm2aj0eoubcmdbclr30/70001176139.pdfIn PDF document text
  • http://gazdalkodjokosan.hu/img/userfiles/file/verer.pdfIn PDF document text
  • http://on-video.com/movies/movie_data/file/83107441464.pdfIn macro / runtime command snippet
  • http://bennett-legal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rexumemegawuvojigages.pdfIn PDF document text
  • https://rizecanreklam.com/images/file/xotejotapizadobolumopejex.pdfIn PDF document text
  • http://mbjarrahi.com/UploadedFiles/New/file/80271835972.pdfIn PDF document text
  • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1613a9978c9803---guviw.pdfIn PDF document text
  • https://thokhoavietnam.com/upload/files/kolilejamet.pdfIn PDF document text
  • http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/1613d51a67f232---86497563020.pdfIn PDF document text
  • https://itscebu.com/upload/file/20210914195048.pdfIn PDF document text
  • http://etpatatietpatata.com/userfiles/files/95983597688.pdfIn PDF document text
  • http://aokunoil.com/ckfinder/userfiles/files/51483646657.pdfIn PDF document text
  • https://kasihpaham.com/contents/files/disunozomunuti.pdfIn PDF document text
  • http://vyveva.eu/UserFiles/File/lesorikupepozinafiri.pdfIn PDF document text
  • http://gazdalkodjokosan.hu/img/useIn macro / runtime command snippet
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=fake+credit+card+numbers+for+free+trialsPDF 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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