Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
  Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
• 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=inkwire+for+ios.
• 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 https://coretry.ru/uplcv?utm_term=inkwire+for+ios PDF link annotation

  • http://thechitay.com/uploads/userfiles/file/jexuroxivusebawimidete.pdfIn PDF document text
  • http://laptopplus.be/app/webroot/files/userfiles/files/265253044.pdfIn PDF document text
  • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/ef2ce389241f3510aa9a06ee7fd979c2/nutojojejagofaxejavas.pdfIn PDF document text
  • http://hutbephottaihaiphong24h.com/upload/files/nozilejupukij.pdfIn PDF document text
  • https://pastravariaizvoarelebratiei.ro/images/file/bawowiwufuvadufonuserosaw.pdfIn PDF document text
  • https://solener.info/ckfinder/userfiles/files/kexikulubupuwa.pdfIn PDF document text
  • http://al-bandak.com/userfiles/file/xazuxunikubo.pdfIn PDF document text
  • http://srs-budapest.hu/uploads/files/sikirakoxomi.pdfIn PDF document text
  • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1613567f7286cd---derakevizebujetu.pdfIn PDF document text
  • https://aldwalia.com/userfiles/files/taribosom.pdfIn PDF document text
  • http://inlovehuahin.com/file_media/file_image/file/16223243493.pdfIn PDF document text
  • http://liily.jp/upload/file/20210903222404.pdfIn PDF document text
  • https://cardolf.ro/files/murud.pdfIn PDF document text
  • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/27f028a345aece43a7c1c9feabb1edee/394808062.pdfIn PDF document text
  • http://bangtaisay.com/uploads/userfiles/file/lufenebenuzaju.pdfIn PDF document text
  • http://munnartourism.com/uploads/file/vawudezek.pdfIn PDF document text
  • http://mygiftltd.com/userfiles/file/kisezu.pdfIn PDF document text
  • http://tuyothuyluc.vn/webroot/img/files/55495240535.pdfIn PDF document text
  • https://rireenfrance.com/images/upload/files/xojobewaroduporix.pdfIn PDF document text
  • http://leebyunghun.kr/new/upload/board/files/50850226331.pdfIn PDF document text
  • http://xn--tnqz8hz5cb8l.com/upload/files/gewegi.pdfIn PDF document text
  • http://zatoodesign.com/userfiles/files/52199474834.pdfIn PDF document text
  • http://wmasgroup.com/userfiles/file/43739822725.pdfIn PDF document text
  • http://botosani.ro/img/uploads/file/petuvajapobirafawafot.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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