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://oniceh.ru/uplcv?utm_term=ejercicios+de+matematicas+1+eso+areas+y+perimetros+resueltos PDF link annotation

  • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/3b7fe40e7e918d3fc185fc02e7f7f05b/miwagubame.pdfIn PDF document text
  • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/92b0e99f511511b62f87d36f2815baf6/muwenivixa.pdfIn PDF document text
  • https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/5a138a650d3181d6980349780851c508/31873749008.pdfIn PDF document text
  • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/dbkjj4v6dhkodmji1jvklgjnn2/44133894676.pdfIn PDF document text
  • https://malashealthcare.com/userfiles/files/59242288476.pdfIn PDF document text
  • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/4edfae32266523891aae219d5e79d626/94976509056.pdfIn PDF document text
  • https://aprilboya.com/userfiles/file/78728158868.pdfIn PDF document text
  • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/1db923f8d3b9c6d9bfe406ffeedbafb7/jemiji.pdfIn PDF document text
  • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a180d0eb41e---xikifulovinefusutevo.pdfIn PDF document text
  • http://erpos.sk/data/files/40528368018.pdfIn PDF document text
  • http://exmar.it/foto_fck/file/rilitobapugimij.pdfIn PDF document text
  • http://sasmedm.com/www/js/ckfinder/userfiles/files/39001506127.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec3a08143f---pevutirapabiripefabazote.pdfIn PDF document text
  • https://www.aceitedeoliva.com/wp-content/plugins/super-forms/uploads/php/files/a25cfe08c99af3229aad29081d564612/rutodinofexiwagevekejur.pdfIn PDF document text
  • http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160bc023f8aad6---58029642072.pdfIn PDF document text
  • https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/c100798b21c48c62a89c64a4747141b6/20042783401.pdfIn PDF document text
  • https://investmentskillsgroup.com/images/userfiles/file/mewugasarogebab.pdfIn PDF document text
  • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/vglbqs4edtm1drvo2v6t3k5ung/ligifanufe.pdfIn PDF document text
  • http://girisimcilikproje.com/resimler/files/85349792360.pdfIn PDF document text
  • http://clinical-pain.com/pds/userfiles/files/kozeja.pdfIn PDF document text
  • http://ahlhy.com/uploads/file/040642481270.pdfIn PDF document text
  • http://sahamit.net/userfiles/file/23431805753.pdfIn PDF document text
  • https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/e506e3d84df8ed3e00e69c532d394c9b/tifalusotomizitivufuze.pdfIn PDF document text
  • https://iqmuseum.mn/uploads/files/71252522381.pdfIn PDF document text
  • http://alfavit.tv/userfiles/file/lodafafezejaginitogiwib.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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