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://coretry.ru/uplcv?utm_term=charles+dickens+short+stories+pdf PDF link annotation

  • http://aspbae.org/userfiles/file/fadilunomufitagozazugo.pdfIn PDF document text
  • http://resurrection-life.net/userfiles/files/44383251586.pdfIn PDF document text
  • http://3t-t.com/User_File/UpFile/file/20210906125232_Z29kaWdlcGFwYW5vbmlnYXRpYg==.pdfIn PDF document text
  • http://www.coverseg.com/uploads/ckfinder/files/9942217765.pdfIn PDF document text
  • http://architettoangeli.it/userfiles/files/54841318035.pdfIn PDF document text
  • https://orcasproje.com/userfiles/file/sunixifoxu.pdfIn PDF document text
  • https://www.vconsole.com/ckfinder/files/zarifosusumalapegok.pdfIn PDF document text
  • https://mvpartners.be/images/uploadedimages/file/kudajaremapavenufosiz.pdfIn PDF document text
  • https://sitycare.com/FCK-UserFiles/files/diwole.pdfIn PDF document text
  • https://imad0c0.com/js/ckfinder/userfiles/files/13748029246.pdfIn PDF document text
  • http://weingut-suppan.at/files/42235127307.pdfIn PDF document text
  • http://novichiha.ru/pic/file/jetopinumexidebabafowe.pdfIn PDF document text
  • https://knoxvilleremembers.com/media/55268320567.pdfIn PDF document text
  • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/317c11b4de4ae3fee0eaf85d6f38c7d5/bafosil.pdfIn PDF document text
  • https://cevhertemizlik.com/userfiles/files/23152852994.pdfIn PDF document text
  • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1614148fb8001d---xojosuxivupagovese.pdfIn PDF document text
  • https://kimcert.org/E/file/67808050066.pdfIn PDF document text
  • http://mfcwestenkwartier.nl/beta/userfiles/file/61583036467.pdfIn PDF document text
  • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1612f14ddc11ca---tomupireruroladoferamob.pdfIn PDF document text
  • http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/161360324ee993---26361755881.pdfIn PDF document text
  • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/t4bslik3dk575oinp0lrg1chu0/31849643024.pdfIn PDF document text
  • http://bagumul.com/file_upload/spaw_upload/file/20210913193034.pdfIn PDF document text
  • http://www.salac.cz/ckfinder/userfiles/files/975886419.pdfIn PDF document text
  • http://parvazyab.net/basefile/api203/files/64446542843.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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