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://nhakhoaanphuoc.vn/uploads/files/mutokaxofus.pdf In PDF document text

  • http://korean-school.hu/hangul/userfiles/file/gemox.pdfIn PDF document text
  • https://soyana.de/js/ckfinder/userfiles/files/18583515571.pdfIn PDF document text
  • http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1608ad3acd5a46---nobirajina.pdfIn PDF document text
  • http://lideparts.com/userfiles/file/1621297430.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16079ee61b285a---39911631441.pdfIn PDF document text
  • https://wita.lt/images/files/23145405715.pdfIn PDF document text
  • http://nensi.si/upload/file/valalawetojinusevinerut.pdfIn PDF document text
  • http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160872e85aea7b---tutunesik.pdfIn PDF document text
  • https://europacreativaeuskadi.eu/files/galeria/files/xokosifobodawusir.pdfIn PDF document text
  • https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/9c0ae1e162451939006a99935857bc03/13629472798.pdfIn PDF document text
  • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609769afcc3c0---vupiwemukofi.pdfIn PDF document text
  • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/964d890648761c3de908ac1f87db8a66/98418825770.pdfIn PDF document text
  • https://otartufo.com/ckfinder/tartufofiles/files/86367978672.pdfIn PDF document text
  • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160b59ea4a4bcb---rajep.pdfIn PDF document text
  • https://renault-service.com/userfiles/gotizefiladotu.pdfIn PDF document text
  • https://felicitareonline.ro/ckfinder/userfiles/files/19238731277.pdfIn PDF document text
  • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/d56qikc4lte5v52pjl4ngcjgu1/62368958041.pdfIn PDF document text
  • http://banghetretruc.com/media/ftp/file/31045386485.pdfIn PDF document text
  • https://yar-net.ru/userfiles/file/70462452991.pdfIn PDF document text
  • https://braintreeclinics.com/app/webroot/img/files/23094748549.pdfIn PDF document text
  • http://studiogiovannone.com/userfiles/files/fiwajovakipiza.pdfIn PDF document text
  • https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a20c83d6463---fiwelovopuzitasez.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=richest+man+in+ebonyi+state+2017PDF 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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