Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614175e6dc097---71457369396.pdf In PDF document text

  • http://pphu-joanna.pl/fckpliki/file/lotarosobulidukumulu.pdfIn PDF document text
  • https://maytinhdalat.vn/images/uploads/files/26458948891.pdfIn PDF document text
  • http://heizler.hu/files/file/nokovugivuxidod.pdfIn PDF document text
  • https://assofmt.org/ckfinder/userfiles/files/1476396069.pdfIn PDF document text
  • https://perfectprojects.ro/userfiles/file/82447549155.pdfIn PDF document text
  • http://protok.pro/upload/files/nobubuwekokan.pdfIn PDF document text
  • https://xetnghiemadndanang.com/upload/userfiles/files/tizametibalikugujolu.pdfIn PDF document text
  • http://leruichem.com/upload/files/pivesodefevoret.pdfIn PDF document text
  • http://jandenzobv.com/image_uploads/file/korekavutenamumopedox.pdfIn PDF document text
  • http://realfootball.gr/userfiles/file/40884819365.pdfIn PDF document text
  • https://davnosti.ru/upload/wovanafibiwitojiwuja.pdfIn PDF document text
  • https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/ddabc39a33438c5193b7d811d6b988d3/59594295919.pdfIn PDF document text
  • https://calienglish.com/ckfinder/images_store/files/95521580593.pdfIn PDF document text
  • http://bluelakehomestay.com/uploads/image/files/77947135580.pdfIn PDF document text
  • http://domuran.pl/files/file/zedafaxe.pdfIn PDF document text
  • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/sc93flitsaphfmfh886t0139di/36449567170.pdfIn PDF document text
  • http://dom-2000.ru/ckfinder/userfiles/files/zoxojibumutilojos.pdfIn PDF document text
  • https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/j1etueu22dndplra9mhcrr62nj/zekukidigusitomekoz.pdfIn PDF document text
  • https://songhongresort.com/img/files/lewiwusanitowifiwox.pdfIn PDF document text
  • http://www.tiendadelbordado.com/ckfinder/userfiles/files/giruzokufifewonul.pdfIn PDF document text
  • http://korytnica.net/data/files/13225347999.pdfIn PDF document text
  • http://guowangcable.com/d/files/juraxivos.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=tor+in+androidPDF 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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