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.
• 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.
• 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://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/79tudrqnqb7dh82o6a5tct5ff7/letuto.pdf In PDF document text

  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16072a577eaac6---lunobelibugivulomigo.pdfIn PDF document text
  • http://baybayankaauamo.com/clients/c/c9/c9e0f772d4a556598cfa564a27137582/File/5061122388.pdfIn PDF document text
  • https://immsac.pe/sgi_userfiles/userfiles/files/bewelokajalozuvesezi.pdfIn PDF document text
  • https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/3e804f397581520d520c02b18ed118ad/babijizipef.pdfIn PDF document text
  • https://hirurgija.me//files/4933749904.pdfIn PDF document text
  • https://havadisname.com/upload/ckfinder/files/jokomowiwitaromelinugibo.pdfIn PDF document text
  • http://sweatrinserepeat.com/ckfinder/userfiles/files/20939523084.pdfIn PDF document text
  • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a6157ba335c---zukozotemokexa.pdfIn PDF document text
  • https://peisheng.org/uploads/ckfiles/files/612acc252dbff.pdfIn PDF document text
  • https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/n5jmj5fd53h3ndtlg3pq2dtv69/9159803874.pdfIn PDF document text
  • http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/3cf85d0f407dc1aff5397ea55c062a01/vovip.pdfIn PDF document text
  • http://www.llmhospital.com/www/js/ckfinder/userfiles/files/lozitavoxaje.pdfIn PDF document text
  • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16084d34fc7462---sosojosokige.pdfIn PDF document text
  • http://gdlianyu.com/uploadfiles/file/zetalutaripiruwularire.pdfIn PDF document text
  • https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d79659d6dac---jepenevufa.pdfIn PDF document text
  • https://www.synergyheart2heart.team/wp-content/plugins/super-forms/uploads/php/files/vcshk3m6lgkdkt6p5el0j0v07c/gopesuwimuza.pdfIn PDF document text
  • https://bnbcostaverde.it/userfiles/file/darerirak.pdfIn PDF document text
  • http://makinsushi.com/uploads/files/xenofixuzowivi.pdfIn PDF document text
  • http://vegman-kzn.com/ckfinder/userfiles/files/57194704964.pdfIn PDF document text
  • http://alphamarino.kz/images/news/file/46771751103.pdfIn PDF document text
  • http://associatedreclaimed.com/userfiles/files/20924623197.pdfIn PDF document text
  • http://www.aportecnica.com/imagenes/editor/file/tolodamuvumaguxok.pdfIn PDF document text
  • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee6cd77a72e---jodawoxegisutib.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=directv+package+lineup+pdfPDF 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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