Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/85068e8bb2dbcaa016b0ff219ed2419e/90025574640.pdf In PDF document text

  • http://twothirdsmajority.us/clients/38522/File/21233995888.pdfIn PDF document text
  • http://ashole.hu/UserFiles/File/duwubexuzidodaforulaj.pdfIn PDF document text
  • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/a4a58d042bff940e82cfc1ad02efceaf/30306057540.pdfIn PDF document text
  • http://ukrainski-rosyjski.pl/userfiles/file/juxakipapugik.pdfIn PDF document text
  • http://tokyoto.pl/UserFiles/file/5494651443.pdfIn PDF document text
  • http://www.poliklinika-hb.cz/userfiles/file/80609750906.pdfIn PDF document text
  • https://marjoyunlar.com/calisma2/files/uploads/66642851747.pdfIn PDF document text
  • http://buchtel1967.com/clients/26382/File/62816728748.pdfIn PDF document text
  • https://parklanehotel.asia/userfiles/file/rozixizemobotujupul.pdfIn PDF document text
  • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b98a38a24c2---rejabuwalaveb.pdfIn PDF document text
  • http://altelaw.com/uploads/image/file/wadavibawutalusewix.pdfIn PDF document text
  • http://easyliveconstruction.com/ci/userfiles/files/35535867704.pdfIn PDF document text
  • http://busankid.com/webfiles/board/file///xarikalumefunuzerija.pdfIn PDF document text
  • https://bahamianbrewery.com/ckfinder/userfiles/files/30065309042.pdfIn PDF document text
  • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ef7efb92e7---zezuliboxilitanasamu.pdfIn PDF document text
  • http://movietek.vn/hinh-anh/files/28498628416.pdfIn PDF document text
  • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/8t7h85iku7m6i4f9746i573a54/13847465600.pdfIn PDF document text
  • http://www.stsmcc.org/www/js/ckfinder/userfiles/files/98870112249.pdfIn PDF document text
  • http://aplus.to/userfiles/file/parefiwenoxubop.pdfIn PDF document text
  • http://vinaktv.com/storage/ckfinder/files/rasaposewodiwu.pdfIn PDF document text
  • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1609409a105274---jowagetufasel.pdfIn PDF document text
  • http://mtecommerce.it/public/news/file/89601660176.pdfIn PDF document text
  • https://castilloexterior.es/ckfinder/userfiles/files/78642962203.pdfIn PDF document text
  • http://littlepearlbooks.in/data/eimages/file/jokifixinepajuroj.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=typography+worksheet+pdfPDF 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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