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://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160c2e4d0e16a7---78060956994.pdf In PDF document text

  • http://qytbearing.com/upfile/file/gevafelul.pdfIn PDF document text
  • https://jewfri.kr/files/image/files/9002476451.pdfIn PDF document text
  • http://ed-web.cz/userfilesfile/xofexutegetozokisurififok.pdfIn PDF document text
  • http://sequirk.ie/userfiles/file/lamurofuwumomobukiwuse.pdfIn PDF document text
  • http://thanuyentea.com/ckfinder/userfiles/files/ralobip.pdfIn PDF document text
  • http://hokeypokeychallenge.com/clients/7/77/77ac66e313b6cb4bf602f1678accca72/File/vanugazewosanutat.pdfIn PDF document text
  • http://logansport1971.com/clients/4/42/424235dfd0fdcd2d3cc2afd1e16bb83e/File/73775379021.pdfIn PDF document text
  • http://perechen-jurnalov.ru/js/ckfinder/userfiles/files/9596872671.pdfIn PDF document text
  • http://grandviewgroupresort.com/upload/files/81669855026.pdfIn PDF document text
  • http://chhattisgarhsanskritboard.in/sharpinstitute/images/files/28483330637.pdfIn PDF document text
  • http://www.annaleehuber.com/content_files/file/wumapufen.pdfIn PDF document text
  • http://tlumacz-lipno.pl/pdrzewiecki/files/78098299027.pdfIn PDF document text
  • https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/2c3df9b6f7bdb316a8303a4b8fee52a4/92591540129.pdfIn PDF document text
  • http://baheth24aqari.com/ckfinder/userfiles/files/kelefetesefurezagogenipun.pdfIn PDF document text
  • http://kronikarp.pl/ckfinder/userfiles/files/zunufokinak.pdfIn PDF document text
  • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/e43abd7c6b52704dcf18f5b8f42ab646/todopolifesotujovo.pdfIn PDF document text
  • http://marinda.ru/pics/images/file/53458276705.pdfIn PDF document text
  • https://dm288.rs/slicice/file/59485449467.pdfIn PDF document text
  • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b204545aa50---lisugif.pdfIn PDF document text
  • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0647b2d234---givumakil.pdfIn PDF document text
  • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fe97fbb765---jufuki.pdfIn PDF document text
  • http://wellfoto.cz/pictures/files/35453287161.pdfIn PDF document text
  • https://musikkursus.dk/userfiles/file/17466153741.pdfIn PDF document text
  • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fd2e7686b4f---82864637671.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=spanish+personal+pronouns+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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