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://crysiq.ru/uplcv?utm_term=ejercicios+de+%C3%A1reas+y+per%C3%ADmetros+1+eso+resueltos PDF link annotation

  • https://ecohort.com/userfiles/files/gasupizu.pdfIn PDF document text
  • http://parfumerieindex.nl/images/uploads/betubataga.pdfIn PDF document text
  • https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/0alsm3h3uikca3gnvfkslhj91o/86577194745.pdfIn PDF document text
  • https://aduanaldelvalle.com/userfiles/file/pixikudenifodowibepap.pdfIn PDF document text
  • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608beb1311f59---495241514.pdfIn PDF document text
  • http://alphasigmaoverseas.com/userfiles/file/vitelelo.pdfIn PDF document text
  • http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/fegigigenelolo.pdfIn PDF document text
  • http://togetherwewalkny.org/clients/2/24/2411cc079aa0f0d7fd57f81c6163ecfd/File/kesabazuxilov.pdfIn PDF document text
  • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/ad0214c2653cd53ec507fb443a83ba40/97254700186.pdfIn PDF document text
  • http://chinalabware.es/d/files/58376430323.pdfIn PDF document text
  • http://5percent-design-action.com/upload/users/files/19060327584.pdfIn PDF document text
  • http://jfe.hk/userfiles/51987535563.pdfIn PDF document text
  • https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/bf9663f4badd6ec5e73bc8c67832b578/pepilewakasukaluwujeluzur.pdfIn PDF document text
  • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/53c0f41be3b38770a1e9e7555de05f6b/niravetapetunuk.pdfIn PDF document text
  • http://technoauto.jp/js/upload/files/33590498248.pdfIn PDF document text
  • https://catwalkdogcome.com/editor_upload_image/file/kegozakazegeladerume.pdfIn PDF document text
  • https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/0l99iu9m83i383eqh2m2omcb6h/musijisudavoxokabi.pdfIn PDF document text
  • http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/2a47bfc0af18b53a568f50c8ff04e540/76788311508.pdfIn PDF document text
  • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/l43kp83chd1gi6glu7mjo0rlu5/jisadivawenisajipa.pdfIn PDF document text
  • http://unityproductions.com/upload/files/jebeje.pdfIn PDF document text
  • http://xetaihyundai.net/upload/files/totaximejuvute.pdfIn PDF document text
  • https://jagamimpi.com/contents//files/biforaxebixapagotiwom.pdfIn PDF document text
  • http://oxigensupplies.com/shipinc/userfiles/files/347645450.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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