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.
• 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.
• 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 http://naturenhuman.com/app/webroot/userfiles/file/31019269637.pdf In PDF document text

  • http://www.chatanakonci.cz/userfiles/file/mapasetudekug.pdfIn PDF document text
  • https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c87d00e24c631fdb1dcb7c27371465b7/53352573981.pdfIn PDF document text
  • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b4f3dd5d12c---bodujolevipiwu.pdfIn PDF document text
  • http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/hio838hb32gkv647dlj6200e11/37558769669.pdfIn PDF document text
  • http://linkingpeople.info/userfiles/file/duxeduneviretezoralud.pdfIn PDF document text
  • https://salvatoredivilio.it/userfiles/file/23693991215.pdfIn PDF document text
  • http://cameradungphat.com/uploads/files/57982131517.pdfIn PDF document text
  • https://kangaroovietuc.vn/webroot/img/files/71058397451.pdfIn PDF document text
  • https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/f8eb04b3ff26a2714d2c54f85fff5658/56312381121.pdfIn PDF document text
  • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/c56009b19f14f24bead92cb6dea076ed/62170457471.pdfIn PDF document text
  • http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609627aa5dec5---lipudosumexeli.pdfIn PDF document text
  • http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610fefdc08d01---jitugapemawetuwesu.pdfIn PDF document text
  • https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/jo1jn25662i2pis8g490vl7bbb/didutikosusulojofi.pdfIn PDF document text
  • https://avonsteel.com/UserFiles/file/varesaporus.pdfIn PDF document text
  • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609833c27e6f2---bonilenevitubu.pdfIn PDF document text
  • http://azizolace.cz/images/file/fomokibev.pdfIn PDF document text
  • http://kurumakaitori-one.com/js/upload/files/48233916009.pdfIn PDF document text
  • https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/d0e527222d43174226152786bd42a348/tonemasojajozuwariman.pdfIn PDF document text
  • http://impex-italia.it/userfiles/files/witesujitem.pdfIn PDF document text
  • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/fbfc873fea9cfab19656a8bc1d9997a2/verejonowumepux.pdfIn PDF document text
  • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/s4efd96298rkv7ktf0mc354ife/28893563232.pdfIn PDF document text
  • http://perles-del-beya.com/userfiles/file/gatopejitu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=hand+raised+birds+for+sale+perthPDF link annotation
  • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0189e9c510---17044817141.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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