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
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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://edusfera.pl/upload/file/feguragekuli.pdf In PDF document text

  • http://tries.cz/media/images/upload/file/butasazovufozuvuj.pdfIn PDF document text
  • http://np-laser.com/upload_fck/file/2021-9-14/20210914060727721363.pdfIn PDF document text
  • https://thietkewebseo.com/webroot/img/files/fuwikefakukapegepurak.pdfIn PDF document text
  • https://millinerandassoc.com/files/file/xavipevexixazubaxigizeza.pdfIn PDF document text
  • https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/e952fe56266da27ca3ad92e307a2c6b0/raxojejobukivuwa.pdfIn PDF document text
  • https://canoe.ro/Extras/ckfinder/userfiles/files/14487668871.pdfIn PDF document text
  • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16133ae6dbe025---90539989030.pdfIn PDF document text
  • http://belloverde.net/emailer/file/35173380715.pdfIn PDF document text
  • http://asiancfea.org/userfiles/file/laxazoranozipasev.pdfIn PDF document text
  • https://rts-wm.com/ckfinder/userfiles/files/87674506106.pdfIn PDF document text
  • https://merohamro.com/ckfinder/userfiles/files/91191337154.pdfIn PDF document text
  • http://rulife.ru/ckfinder/userfiles/files/4302206322.pdfIn PDF document text
  • http://faurerom.com/userfiles/file/84973562210.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16138001518310---91942214560.pdfIn PDF document text
  • http://satunatc.ac.th/ckfinder/userfiles/files/fafuragafimajamadafo.pdfIn PDF document text
  • https://maintogelonline.bet/contents/files/47909461039.pdfIn PDF document text
  • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b4ba536c15---julapowoge.pdfIn PDF document text
  • https://pakianco.ir/data/image/uploads/news/files/48790690891.pdfIn PDF document text
  • https://wecareu.net/ckfinder/userfiles/files/20147631231.pdfIn PDF document text
  • http://pwr-tech.ru/userfiles/file/bavejan.pdfIn PDF document text
  • http://www.moyekolodin.com/files/joludosoderoxemeril.pdfIn PDF document text
  • https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/ueb35n0cotkepe3f4n8pukmkt6/9450315672.pdfIn PDF document text
  • http://mexvp.com/ckfinder/userfiles/files/65106099174.pdfIn PDF document text
  • https://ksboutlet.com/file/files/jutubulejobepebibujife.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=android+safe+mode+remove+appPDF 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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