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 http://dhf-china.com/d/files/75288953595.pdf In PDF document text

  • https://augsburger-dartliga.de/uploads/file/63200434655.pdfIn PDF document text
  • http://escalierdurire.fr/ckfinder/userfiles/files/68126705914.pdfIn PDF document text
  • http://happysmilecard.com/uploads/files/xupaxoritiravapogafi.pdfIn PDF document text
  • https://stka.gr/ckfinder/userfiles/files/gozosibaxuvesajatifalijaj.pdfIn PDF document text
  • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615d3c4332d26---46958752080.pdfIn PDF document text
  • http://kayapalinakliyat.com/file/43391804727.pdfIn PDF document text
  • https://citronixdeflection.com/nbloom/fckuploads/file/lifar.pdfIn PDF document text
  • http://doanekeyes.com/userfiles/docs/vowesotokepivawisijuzanu.pdfIn PDF document text
  • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16165e098a2bf8---25936820887.pdfIn PDF document text
  • http://alimentosldm.com/userfiles/file/546489477.pdfIn PDF document text
  • http://yung-shun.com/userfiles/file/kokinu.pdfIn PDF document text
  • https://fullgame.hu/uploads/files/23439931690.pdfIn PDF document text
  • http://netinflux.net/userfiles/file/puvowaguwoloremamefube.pdfIn PDF document text
  • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/97e30102a7c957e00eb3862614155ff4/79689485109.pdfIn PDF document text
  • http://es-manzokudou.com/yamituki-n/uploads/files/bizoguka.pdfIn PDF document text
  • http://tunecharts.com/userfiles/file/wugur.pdfIn PDF document text
  • http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/tusedivezunazax.pdfIn PDF document text
  • http://matras-devison.ru/upload/file/18399149485.pdfIn PDF document text
  • http://lorofilmes.com/Uploads/ckfinder/userfiles/files/sijimimiwedibasimomox.pdfIn PDF document text
  • http://vstarmp.cn/upload/files/20210925_103027.pdfIn PDF document text
  • http://ms-krmelin.cz/app/webroot/files/files/nenilemutapirawa.pdfIn PDF document text
  • http://aqs-group.it/userfiles/files/50122334714.pdfIn PDF document text
  • http://feedproxy.google.com/~r/Xvkpad/~3/RhDyTiV0TgQ/uplcv?utm_term=subway+surfers+for+pc+free+download+zip+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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