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.
• 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.
• SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
  PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
• 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://wirut.co.za/XSRYdR1H?utm_term=bhoot+fm++16+march+2018 PDF link annotation

  • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/161f981a2a2a5c---dapazisegusopib.pdfIn PDF document text
  • https://www.reptrics.com/kcfinder/upload/files/zigizuwow.pdfIn PDF document text
  • https://lhdgv.ca/lpch2010/userfiles/file/likafimexasatutusezobije.pdfIn PDF document text
  • http://snbh.imadiff.net/kcfinder/upload/files/kasililiwebidedonurot.pdfIn PDF document text
  • http://xn--90aweabvm.xn--p1ai/ckfinder/userfiles/files/tizulozitinoromimokigale.pdfIn PDF document text
  • https://schneider-rozetki.su/kcfinder/upload/files/fexoru.pdfIn PDF document text
  • https://marmetal.cevhertemizlik.com/userfiles/files/wodivos.pdfIn PDF document text
  • http://avanti-kuhni.ru/upload/files/75425099458.pdfIn PDF document text
  • http://ecogestval.com/userfiles/file/83648680458.pdfIn PDF document text
  • http://hoachattn.com/image/files/30957518368.pdfIn PDF document text
  • https://parkerboat.hu/js/ckfinder/userfiles/files/22299942565.pdfIn PDF document text
  • http://entrackintl.com/uploads/dawevakulugafefin.pdfIn PDF document text
  • https://himalayanthailand.com/image/upload/File/vinemo.pdfIn PDF document text
  • http://sinkrontech.hu/admin/kcfinder/upload/files/buwedodusexomejodopo.pdfIn PDF document text
  • http://www.cerradurasytornillos.com/gdc/kcfinder/upload/files/207402965.pdfIn PDF document text
  • https://nieruchomosciprzetargi.pl/files/file/84091379503.pdfIn PDF document text
  • http://przychodnia-felinskiego.pl/uploads/editor/file/sofodubibodiloroxabo.pdfIn PDF document text
  • http://dui-antidote.net/images/userfiles/file/30611290708.pdfIn PDF document text
  • http://marquisdecor.com/userfiles/file/69241716577.pdfIn PDF document text
  • https://thietkewebseo.com/webroot/img/files/riwomufanasuvixebe.pdfIn PDF document text
  • http://superazs.ru/images/news/file/1507356432.pdfIn PDF document text
  • http://www.mostex.sk/files/articles/file/xekewapitabiluviloj.pdfIn PDF document text
  • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16202d99b8eb3a---jegukibikexebofuzupewezu.pdfIn PDF document text
  • http://holflorstudio1.cz/upload/files/kokovogojitepukafilufo.pdfIn PDF document text
  • http://domkomplekt34.ru/attachments/file/13201959072.pdfIn PDF document text
  • http://worldcar.jp/userfiles/files/totobinivivu.pdfIn PDF document text
  • http://navicom.net.vn/ckeditor/kcfinder/upload/files/12371660753.pdfIn PDF document text
  • https://www.grdr.org/paidel/ckfinder/userfiles/files/45009707705.pdfIn PDF document text
  • http://climacom.eu/userfiles/files/pumumevegogo.pdfIn PDF document text
  • http://congtysenbac.vn/hinhanh_fckeditor/file/83825050156.pdfIn PDF document text
  • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16216e9e7d95c9---bakogifupulu.pdfIn PDF document text
  • http://grosfillex.com.br/admin/plugins/ckeditor/kcfinder/upload/files/junonuwawexatasorotate.pdfIn PDF document text
  • 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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