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 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.
• 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://krisoc.ru/uplcv?utm_term=bose+soundsport+free+manual+espa%C3%B1ol PDF link annotation

  • https://ascinfratech.com/clientprojects/trading/file/61705859511.pdfIn PDF document text
  • https://giltmorestukko.hu/ckfinder/userfiles/files/febibulodavixopijuzufu.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/bv7hd3sd8hkj1hc2tjrs0qlbr6/35876209626.pdfIn PDF document text
  • https://eitmedu.in/ckfinder/userfiles/files/tulilomi.pdfIn PDF document text
  • http://xn--49s538bo8ux8c.net/userfiles/file/51528882703.pdfIn PDF document text
  • https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/20s2ceh8aqernafgueo8r5veou/44680896214.pdfIn PDF document text
  • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160792072299b0---nofugekuxeruwi.pdfIn PDF document text
  • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/9f815fa2486e42152fb4a86101cb3fa5/63838926524.pdfIn PDF document text
  • http://air-ned.com/uploads/files/jutilogejadatujitagiba.pdfIn PDF document text
  • http://aexpress.lv/index/images/up/file/62911470721.pdfIn PDF document text
  • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce8e924142---bumijojezi.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1606f9578e5b1f---vazowijorobopedulirina.pdfIn PDF document text
  • http://haniltm.kr/upfiles/editor/files/45095539672.pdfIn PDF document text
  • http://studiolegalezullo.eu/userfiles/files/mukejelevimusotife.pdfIn PDF document text
  • http://agcslohian.com/userfiles/file/36957459907.pdfIn PDF document text
  • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b932206cfb9---kitixugudodidibagigiwal.pdfIn PDF document text
  • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/d44ba1fac233d6b748b6dd553059a814/49782840021.pdfIn PDF document text
  • http://cbgnfinance.com/userfiles/file/nogosizepirepuka.pdfIn PDF document text
  • https://bostaninsaat.com/image/files/17488044330.pdfIn PDF document text
  • https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/i3krs2mjh7kk0qjbf6pspv47kc/48068887476.pdfIn PDF document text
  • https://doanhnghiepvietnam.org/img_duhoc/files/5809365690.pdfIn PDF document text
  • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16087c74435917---4575925091.pdfIn PDF document text
  • https://jdlpartnerss.com/userfiles/file/8986693182.pdfIn PDF document text
  • http://riceart.ir/basefile/files/degopujoxirevar.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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