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 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://cructi.ru/uplcv?utm_term=bangla+word+typing+pdf PDF link annotation

  • http://burningspearmarketplace.com/js/ckfinder/userfiles/files/47255558595.pdfIn PDF document text
  • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5575edf43---25219272058.pdfIn PDF document text
  • http://caopump.com/admin/userfiles/file/zisolerapagexoni.pdfIn PDF document text
  • http://banghetretruc.com/media/ftp/file/52257083435.pdfIn PDF document text
  • http://022-web.cn/uploadfile/file/20210823181449540.pdfIn PDF document text
  • http://clair-environnement.eu/catalogue_dynamique/file/rutiposo.pdfIn PDF document text
  • http://piri-piri.pl/ckfinder/userfiles/files/36601099877.pdfIn PDF document text
  • https://rugsdirect4u.com/uploadedfiles/file/74522044859.pdfIn PDF document text
  • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acb87c15b5b---82141938798.pdfIn PDF document text
  • http://skinct.com/upload_file/file/Fl202108260618198274.pdfIn PDF document text
  • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/gt5f3vi9i192g98b9r08birmrh/bugeredoratapodeveforep.pdfIn PDF document text
  • https://www.huaikrachaohospital.go.th/assets/global/lib/ckfinder/userfiles/files/60123670152.pdfIn PDF document text
  • https://shayangroup.net/wp-content/plugins/super-forms/uploads/php/files/10eead4e4ff9ec732bd36f26c9c498cc/givebemosozevu.pdfIn PDF document text
  • http://sun-green.de/ckfinder/userfiles/files/fedavufadaloxotibogad.pdfIn PDF document text
  • http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ff484f55a65---72706897046.pdfIn PDF document text
  • https://psfund.org/public/uploads/files/cms_files/9759546611.pdfIn PDF document text
  • http://nowyhotelik.pl/userfiles/file/zaxuxuwenumum.pdfIn PDF document text
  • http://debandhelder.nl/ckfinder/userfiles/files/rubegubuwewopilibadidaza.pdfIn PDF document text
  • https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/df76c7e585dae4eb842c1517538c0965/95473615092.pdfIn PDF document text
  • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1608a58335912f---rabudusuv.pdfIn PDF document text
  • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/dc0b173827e8e9e55c75d8d948c602a2/gudutup.pdfIn PDF document text
  • http://birnagarcollege.in/userfiles/file/bajozewepadamivu.pdfIn PDF document text
  • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/72nhd0ocd60k8bqe9nqrrdo1ds/ditato.pdfIn PDF document text
  • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608da742dcc98---wafovitixebomuna.pdfIn PDF document text
  • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/e7f48d29dc1f8a0e37b45dad4037e59e/bujipiluwapaki.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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