Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://synerhu.ru/uplcv?utm_term=candy+crush+unlimited+lives+apk+download PDF link annotation

  • https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f27e70f351---vufegipimezowojemis.pdfIn PDF document text
  • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dfdc1a2069---voraxodur.pdfIn PDF document text
  • http://hanhthien.net/uploads/file/65401973031.pdfIn PDF document text
  • http://digitalpolicycouncil.org/imagenes/file/bovinidizaverab.pdfIn PDF document text
  • http://crosswaysrecruitment.com/userfiles/file/wesonirikejizemiriwo.pdfIn PDF document text
  • https://hkpefa.org/editor_upload/file/11791851345.pdfIn PDF document text
  • https://www.frontieregypt.com/sites/all/libraries/ckfinder/userfiles/files/16901815923.pdfIn PDF document text
  • https://gadesign52.com/uploads/files/202109050627385632.pdfIn PDF document text
  • https://schmitz.cz/res/file/77531696098.pdfIn PDF document text
  • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/df8adca41888bf67a2738bebf2ad7896/lugewukedovofat.pdfIn PDF document text
  • http://challendor.com/fckeditor/upload/file/fuzadisozufoz.pdfIn PDF document text
  • https://valerart.com/ckfinder/userfiles/files/tuvuxetamu.pdfIn PDF document text
  • http://gorisum.net/fckeditor/upload_file/file/minobuzupafuruxevowu.pdfIn PDF document text
  • https://btsmstlucia.com/atomicsteps/upload/userfiles/file/62539280643.pdfIn PDF document text
  • http://dobryremont.pl/ebobas/portal/app/webroot/img/tmp/file/16315041242128.pdfIn PDF document text
  • https://shidoremicrosys.com/media/13950177164.pdfIn PDF document text
  • http://zartmobilia.com/userfiles/file/20210902025753.pdfIn PDF document text
  • http://m-s-g.ru/userfiles/files/ziloxelobisigilagusu.pdfIn PDF document text
  • http://cecev.com/stockages/files/folapavita.pdfIn PDF document text
  • https://beytarimcilik.com/admin/editor_resim/file/13622768389.pdfIn PDF document text
  • https://fultoys.com/userfiles/jitovif.pdfIn PDF document text
  • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161400653a5080---47989758999.pdfIn PDF document text
  • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16144bdc9044f7---68104132674.pdfIn PDF document text
  • http://nagakuratrading.com/js/upload/files/gitivow.pdfIn PDF document text
  • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/ho4t2f3k7if4lln7bomf3b30i6/gixerexisotonetukedunoboj.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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