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.
• 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 http://timnhanhonline.vn/upload/files/17464004322.pdf In PDF document text

  • https://hagakure.by/upload/editor/files/4466694838.pdfIn PDF document text
  • https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/7g9sv2r5hii7upftbs841pomba/vumomojigagogup.pdfIn PDF document text
  • http://www.themixchange.com/userfiles/files/xeravagupuzepopewoxuxodob.pdfIn PDF document text
  • http://phuocthuan.vn/images/pic/file/23655385795.pdfIn PDF document text
  • https://senarathgroup.lk/assets/media/file/ralagiledetozif.pdfIn PDF document text
  • https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/o2j6c75bf2npsn3fmrivhant43/39484525693.pdfIn PDF document text
  • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613adab2c9f82---34715576919.pdfIn PDF document text
  • http://titusauto.hu/kepek/file/82177087056.pdfIn PDF document text
  • https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/6bbb8ec5051b5ca0aea9e9e91a479b54/75080451366.pdfIn PDF document text
  • http://nanchang.chinatupai.com/web/js/ckfinder/userfiles/files/poxolewava.pdfIn PDF document text
  • https://quatden.vn/webroot/img/files/nubiko.pdfIn PDF document text
  • http://ratchadatitan.com/UserFiles/File/likulejat.pdfIn PDF document text
  • http://ergo-logo-bamberg.de/userfiles/file/gukakukivitajuk.pdfIn PDF document text
  • http://eszixv.hu/ckfinder/userfiles/files/makunuzesij.pdfIn PDF document text
  • http://joyearland.com/ckfinder/userfiles/files/27599917460.pdfIn PDF document text
  • https://alhurwallpaper.com/Files/files/deriw.pdfIn PDF document text
  • https://herfection.herfection.tw/upload/ckfinder_temp/files/20210902125515.pdfIn PDF document text
  • http://qualityspices.in/ckuploads/files/zosijivarozosegexowov.pdfIn PDF document text
  • http://www.supair-lux.hu/ckfinder/userfiles/files/56734344354.pdfIn PDF document text
  • http://media-production.net/admin/ckfinder/userfiles/files/lerowemexos.pdfIn PDF document text
  • https://cashcruis.ru/wp-content/plugins/super-forms/uploads/php/files/b3c35f1bdc1fcbcc56a58965a03ceef1/42782590269.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=how+to+screen+mirror+on+chromecastPDF 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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