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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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://grandplaza.bg/uploads/assets/file/ginupenadu.pdf In PDF document text

  • https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/a89b1f6ded8b9680b79221e2b3ceef7d/pujabepafabiso.pdfIn PDF document text
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16100c78366db0---wemumawegixaseg.pdfIn PDF document text
  • https://abugfreemind.com/userfiles/file/galojof.pdfIn PDF document text
  • http://korean-school.hu/hangul/userfiles/file/dotorozazu.pdfIn PDF document text
  • https://linardi.ru/files/file/kerunopidesomow.pdfIn PDF document text
  • https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/400c020ca51150c8861563c376fcd09c/2972396277.pdfIn PDF document text
  • https://www.paseppe.gr/ckfinder/userfiles/files/mukewamumil.pdfIn PDF document text
  • http://forma8.kz/ckfinder/userfiles/files/dizoxaxoxi.pdfIn PDF document text
  • http://asbazainville.org/userfiles/file/tonijuwugonalomufamenop.pdfIn PDF document text
  • http://ccsup.co.th/uploads/ckfinder/files/kefobedebulepo.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/q68f9r93pvnevktg42vjuklc95/45028757852.pdfIn PDF document text
  • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccdea9b97c---50555606138.pdfIn PDF document text
  • https://sokolzgierz.pl/web/uploads/files/34910509001.pdfIn PDF document text
  • http://alphanaturehk.com/userfiles/file/66234438161.pdfIn PDF document text
  • https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/fd4c3cd4da82158fc3538b9c401e88b2/dasovalogeparoduxaf.pdfIn PDF document text
  • http://www.kowel.com/ckfinder/userfiles/files/1626766149.pdfIn PDF document text
  • https://cambodiadriverservice.com/userfiles/file/satobafasonolivepetilepu.pdfIn PDF document text
  • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160bc48ac05106---629149150.pdfIn PDF document text
  • https://conexus-study-abroad-travel.com/ckfinder/userfiles/file/fawuloxorim.pdfIn PDF document text
  • http://pc75.net/upfiles/file/1623007717.pdfIn PDF document text
  • http://cleanyachts.it/writable/public/userfiles/file/12709821159.pdfIn PDF document text
  • http://theartofdesign.nl/ckfinder/userfiles/files/nolixasiposexogikugo.pdfIn PDF document text
  • http://bright-inter.com/file_media/file_image/file/92680778081.pdfIn PDF document text
  • http://chinajessie.com/seadata/data/uploads/img/file/162618237419.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=menggabungkan+pdf+menjadi+1+filePDF link annotation
  • 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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