Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://chcial.ru/uplcv?utm_term=cortana+app+apk PDF link annotation

  • https://afayl.com/userfiles/file/76503154200.pdfIn PDF document text
  • http://hanasushi6.com/uploads/files/wapekujomutexevedirubar.pdfIn PDF document text
  • http://objets.immoweiss.lu/userfiles/files/26837756182.pdfIn PDF document text
  • http://www.gyndoktors.de/ckfinder/userfiles/files/86522859289.pdfIn PDF document text
  • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16133121687a7e---75424931304.pdfIn PDF document text
  • https://goldenlinejsc.com/userfiles/file/81484407906.pdfIn PDF document text
  • http://bluestandard.pl/ckfinder/userfiles/files/68112190543.pdfIn PDF document text
  • http://riph.pl/userfiles/file/95720126151.pdfIn PDF document text
  • https://bisleriwheel.genefied.co/ckfinder/userfiles/files/bukam.pdfIn PDF document text
  • https://ruedi-leuthold.com/userfiles/files/79580492119.pdfIn PDF document text
  • https://exam10.menapoint.com/app/webroot/upload/files/jagulel.pdfIn PDF document text
  • http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/2ab20a78434f7bd2ab1ca7373aa7af01/dalezenuda.pdfIn PDF document text
  • http://poketomecam.com/uploads/files/8629541534.pdfIn PDF document text
  • https://weyergans-hcc.lv/userfiles/file/10358592926.pdfIn PDF document text
  • http://poexali.org/static/image/_u/system/files/30881133321.pdfIn PDF document text
  • https://geneticapanama.com/userfiles/file/30956520605.pdfIn PDF document text
  • http://ipceurope.be/assets/file/97588193396.pdfIn PDF document text
  • https://hahapediatric.com/uploads/files/202109100721549293.pdfIn PDF document text
  • https://haysalon.com/public_html/userfiles/file/46035982284.pdfIn PDF document text
  • http://petra-dario.info/upload/datoteke/beravarisudoz.pdfIn PDF document text
  • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137a54d22036---19247664247.pdfIn PDF document text
  • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/16136ef2a8a244---norixitexizogiwezozenenu.pdfIn PDF document text
  • http://vitalenzyme.com/uploads/fckupload/file/74435110109.pdfIn PDF document text
  • http://thekreativecompany.com/uploaded_files/userfiles/files/38063603793.pdfIn PDF document text
  • https://haisanquangninh.org/data/dulieu/files/86634152847.pdfIn PDF document text
  • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136a025510e4---fakubutelunonuwuratomawu.pdfIn PDF document text
  • http://nriloan.jctoursandtravels.in/files/jetozelasi.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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