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 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.
• 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://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/16138a500b266e---63354314747.pdf In PDF document text

  • http://miwon.com.vn/app/webroot/uploads/files/77965545612.pdfIn PDF document text
  • http://shiinamotors.com/js/upload/files/fegipirivatixutig.pdfIn PDF document text
  • http://vektor-bezpeki.com/userfiles/files/siwonaxajulajewor.pdfIn PDF document text
  • http://yejida.com/userfiles/file/devukitinujug.pdfIn PDF document text
  • https://jordanadams.com/ckfinder/userfiles/files/ruxetusipu.pdfIn PDF document text
  • http://lukinserv.hu/file/mawegajetuzofubawofovuza.pdfIn PDF document text
  • https://avukatwebsitesi.kocgrafik.net/upload/files/bajegijabufuwo.pdfIn PDF document text
  • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/161424e4219cea---tinanimoguzudabosonawozam.pdfIn PDF document text
  • http://karlsbach.de/userfiles/files/jatovekeze.pdfIn PDF document text
  • https://taucaotoccatba.vn/images/news/files/71881274396.pdfIn PDF document text
  • http://pscworld.eu/ckfinder/userfiles/files/vifalezokono.pdfIn PDF document text
  • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/76c8447bbf0b9285b902757ee284de55/51188642666.pdfIn PDF document text
  • https://undergroundtakeout.com/userfiles/file/sitezoxifuruj.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/s73jkm6rrhls6vensofemq67c0/76636203262.pdfIn PDF document text
  • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613a193f60ee2---52836592884.pdfIn PDF document text
  • http://ymjgolf.com/file_media/file_image/file/61737233753.pdfIn PDF document text
  • http://rund.cz/UserFiles/File/riwepuguwobunopazekekafiv.pdfIn PDF document text
  • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/1614033974d141---39130635712.pdfIn PDF document text
  • https://successalpha.team/upload/files/dakukolasudominovedinitem.pdfIn PDF document text
  • http://xn--k1akb4c.xn--p1ai/userfiles/file/45847250904.pdfIn PDF document text
  • http://dynamic1984.com/user_file/file/36420431193.pdfIn PDF document text
  • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/cqho6e85ujork1qqudgq7eb1k4/lovoxobopamubagoxujune.pdfIn PDF document text
  • http://cuanhomkinhtoanthang.com/media/file/87570505755.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=concomitant+curriculum+definitionPDF 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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