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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://oniceh.ru/uplcv?utm_term=linguistica+y+colonialismo+pdf PDF link annotation

  • http://stnicholasway.com/userfiles/file/lilalirupifelopax.pdfIn PDF document text
  • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b81dcb0cf91---bawukomuwiralitutaru.pdfIn PDF document text
  • http://ksnjl.com/userfiles/files/fapowedibabufamowaj.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/h8s43o27095ib8tbmrirq1r0h7/safitivusenosop.pdfIn PDF document text
  • http://portalkucharski.pl/app/webroot/media/files/75802705857.pdfIn PDF document text
  • http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/j2i742r3o3skv3dbrla3g6kc6q/82103394597.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160899efe544f6---wuxekotiwanafa.pdfIn PDF document text
  • http://grafosaleservice.cz/images/fck_editor/file/37944608981.pdfIn PDF document text
  • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/7397ba74c8775f17bf4a0536d9fc2ad9/9155594898.pdfIn PDF document text
  • http://dspec-car.com/js/upload/files/85589735941.pdfIn PDF document text
  • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16095dfa8ea7ac---mazibozofunegaf.pdfIn PDF document text
  • https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/qnp74ktdluh1bclmk1ea9etbrl/43964243760.pdfIn PDF document text
  • http://lisaarkin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nejepuxa.pdfIn PDF document text
  • http://nikolalepojevic5.com/multimedia/file/37994425186.pdfIn PDF document text
  • https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/q95r9qhsa9m84jma9ecuqfuoho/90041098270.pdfIn PDF document text
  • https://tl-systems.hu/files/files/76274086456.pdfIn PDF document text
  • http://phatnang.com/media/ftp/file/dijufalazuwixigujuzotug.pdfIn PDF document text
  • https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/cc35327f350d5a49ce18325fe00b5448/robazoronosik.pdfIn PDF document text
  • https://betenrealestate.com/sites/default/files/file/82965776635.pdfIn PDF document text
  • http://isgsrl.it/images/file/gisafudebul.pdfIn PDF document text
  • http://mintaialuminum.com/d/files/64621751589.pdfIn PDF document text
  • http://sahamit.net/userfiles/file/25873509826.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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