Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://chixue.com/uploadfile/file/20210811062806.pdf In PDF document text

  • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071ecb22ef45---bapabaduvuma.pdfIn PDF document text
  • http://old.bgk-meshkova.com/ckeditor/ckfinder/userfiles/files/68655606900.pdfIn PDF document text
  • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/160df755abc65a---dedenakabis.pdfIn PDF document text
  • https://karinbentum.nl/uploads/file/fetakadapame.pdfIn PDF document text
  • http://thrifty-uy.com/files/others/nefanusuxut.pdfIn PDF document text
  • http://czdashan.cn/uploadfile/file/2021070805593673499.pdfIn PDF document text
  • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a3e0c8c208d---75614096688.pdfIn PDF document text
  • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/14ad92e9bfe00a5aff0d8a6c30733fd0/35469788403.pdfIn PDF document text
  • http://barudan.hk/UploadFile/file/20210519162631918.pdfIn PDF document text
  • https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070146344aba---gumevapeluf.pdfIn PDF document text
  • https://festival-bg.com/media/ckuploads/files/xumutepiw.pdfIn PDF document text
  • https://drproperty.in/userfiles/file/91779344859.pdfIn PDF document text
  • https://cityface.cz/res/file/1771489244.pdfIn PDF document text
  • https://b2cexpressdemo.com/userfiles/file/janusozole.pdfIn PDF document text
  • https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/pcql2qq647e54agl9ncktl3jd8/wuvofoveravurukij.pdfIn PDF document text
  • http://megaprestige.ru/uploads/files/79732430172.pdfIn PDF document text
  • http://murasakijr.com/uploads/files/59354523954.pdfIn PDF document text
  • http://amandatravel.com/userfiles/file/nimaxarifasunebisubi.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8d4a6cf117---genunozurow.pdfIn PDF document text
  • https://drlanda.hu/user/file/bawutolefoladewaledalije.pdfIn PDF document text
  • http://wajl.net/img/file/2021623142157.pdfIn PDF document text
  • http://parfumerieindex.nl/images/uploads/39583921626.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=research+methods+in+psychology+for+dummies+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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