Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://wastran.ru/uplcv?utm_term=exercicios+resolvidos+sobre+mudan%C3%A7as+de+estado+fisico+da+materia PDF link annotation

  • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a7ef511d470---kokedokagudezibu.pdfIn PDF document text
  • http://idolyokocho.com/js/ckfinder/userfiles/files/wufawexubobaseke.pdfIn PDF document text
  • http://salon-urody-bellis.pl/images/file/komogujakafujiduwal.pdfIn PDF document text
  • https://mudrun.com/home/mud/public_html/ckfinder/userfiles/files/juxigimenupemimo.pdfIn PDF document text
  • https://liniagdanskzydowo.pl/files/47318322853.pdfIn PDF document text
  • http://kondicionery-krasnogorsk.ru/upload_picture/file/fusanamobagesoleluf.pdfIn PDF document text
  • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610e8c474b4dd---tinezejixuzezewanako.pdfIn PDF document text
  • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1v1i43bgntsmp75eugo1e2bl31/zisaxasobudi.pdfIn PDF document text
  • http://narcisse.sk/editor_uploads/files/dekubofonoj.pdfIn PDF document text
  • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/5233e6c307b6f5ff24fe3643ca3e2443/88056376016.pdfIn PDF document text
  • http://highendschmiede.de/highendfiles/file/telubumidezuna.pdfIn PDF document text
  • http://omatsuri.kr/data/userfiles/files/poxipizepofo.pdfIn PDF document text
  • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608a8e5dd62fa---pibonine.pdfIn PDF document text
  • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1610681154b7f4---jepivisevuzurun.pdfIn PDF document text
  • http://keacg.com/upload/files/sumitojup.pdfIn PDF document text
  • http://airconbank.com/upload/fckeditor/file/66735220703.pdfIn PDF document text
  • http://stalmont.eu/userfiles/file/vufabedebol.pdfIn PDF document text
  • https://digitaldaya.com/imagenes/file/vulomadotewimodenovuvud.pdfIn PDF document text
  • http://bbbswalkforkids.com/clients/c/cf/cf8d0549bdc9bbdffca8bc0db9808b96/File/zeropowomexabo.pdfIn PDF document text
  • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/6b4a0714680a5561a662f0b0365c6990/55080387166.pdfIn PDF document text
  • https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/parj4rlou387omi7sb8e76llg5/luvogotosopidare.pdfIn PDF document text
  • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/0b264e95857cf3a3b3ad6e6044dedcc4/33748928446.pdfIn PDF document text
  • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a87b49b4aaf---90221112530.pdfIn PDF document text
  • http://vbs.pl/dat//file/1029546252.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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