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.
• 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://ketchas.ru/uplcv?utm_term=sync+bookings+with+outlook+calendar PDF link annotation

  • https://www.eos.org.eg/ckfinder/userfiles/files/36953150876.pdfIn PDF document text
  • http://phongkhamthienhoa.vn/images/files/54635236855.pdfIn PDF document text
  • http://mecateengenharia.com.br/ckfinder/userfiles/files/surubadobabo.pdfIn PDF document text
  • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/m0r2sjs7i9c03oecf7i2k629j8/rufafuwusuzovifez.pdfIn PDF document text
  • http://geluidsadviesnederland.nl/ckfinder/userfiles/files/52337097021.pdfIn PDF document text
  • http://solyaris.pro/admin/ckfinder/userfiles/files/nedozu.pdfIn PDF document text
  • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/ed9ba06bca7b377b42f9043e52cb2d4d/vomuliresuxakojaz.pdfIn PDF document text
  • http://duoctruongxuan.vn/userfiles/image/file/lupopuluse.pdfIn PDF document text
  • http://cyuanmei.com/userfiles/file/vejitepir.pdfIn PDF document text
  • http://texinpack.com/uploadfile/file///2021090400413556.pdfIn PDF document text
  • https://banderlogclub.ru/Files/file/99725889937.pdfIn PDF document text
  • https://cissud.com/uploads/ck_editor/files/24240447659.pdfIn PDF document text
  • https://miaousland.fr/ckfinder/userfiles/files/vegak.pdfIn PDF document text
  • http://peaceinsrilanka.lk/userfiles/file/sejujadi.pdfIn PDF document text
  • http://ibconsulting.it/userfiles/files/texavixasoxelutasimi.pdfIn PDF document text
  • http://jumpinfit.it/userfiles/files/likudexoxiwonelopiximus.pdfIn PDF document text
  • https://banktapeunadana.com/tapeunadana/bank2/admin/userfiles/file/lavodinini.pdfIn PDF document text
  • https://truckforceone.eu/upload/editor/file/19704517639.pdfIn PDF document text
  • https://a2designbg.com/userfiles/file/32745329363.pdfIn PDF document text
  • http://lnaixi.com/userfiles/file/20210909073828_6496241.pdfIn PDF document text
  • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/kfln6eb32evk09v5fpu332h8vb/luzeg.pdfIn PDF document text
  • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/0da4bbc9094372ae9afaa79b81e6e746/76299909267.pdfIn PDF document text
  • http://branonperformance.com/ckfinder/userfiles/files/tekaluderubajoxu.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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