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://chcial.ru/uplcv?utm_term=headache+on+one+side+of+head+right PDF link annotation

  • http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/d23ee3c9a591e454966b786761de772f/27430296274.pdfIn PDF document text
  • http://drsuthichai.com/userfiles/files/wamonexuwojenigezujov.pdfIn PDF document text
  • http://massiimo.com/piceditor/file/55177267731.pdfIn PDF document text
  • http://skupka54.ru/upload/m/tizenibofizorosepuxa.pdfIn PDF document text
  • https://ontech.vn/images/ckeditor/files/xarevix.pdfIn PDF document text
  • https://santa.sg/images/users/00000000/files/rusidiwerod.pdfIn PDF document text
  • https://coffeetuanvang.com/Images_upload/files/49929790313.pdfIn PDF document text
  • http://applecentervn.com/uploads/image/files/mozawojezogetanufunevib.pdfIn PDF document text
  • http://mulroyenvironmental.ie/userfiles/file/36352757860.pdfIn PDF document text
  • http://sov.tranovice.org/webpagebuilder/ckfinder/userfiles/files/mojazevukujagolali.pdfIn PDF document text
  • http://freestyler.cz/img/file/21326032515.pdfIn PDF document text
  • https://www.theoakshealthcare.com/my_content/js/ckfinder/userfiles/files/benodogivapiliveresekev.pdfIn PDF document text
  • http://classtool.info/upload/files/gerizijupiresolijikezupi.pdfIn PDF document text
  • https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/e25ac030c2e3e874d134c4fb576f934b/50618232799.pdfIn PDF document text
  • http://mywayrtk.org/userfiles/file/xamawiwamizuvuritef.pdfIn PDF document text
  • http://elosc.com/upFile/file///ITX202109291355284824.pdfIn PDF document text
  • http://aroma-es.red/yamituki-n/uploads/files/37183318155.pdfIn PDF document text
  • http://kbcsisa.com/upload/fckeditor/file/rizugatinenatupubot.pdfIn PDF document text
  • https://tuyendung.tlipgroup.com/upload/images/files/pujogevagadowefufed.pdfIn PDF document text
  • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/b0suprkotqks4vo43ll2smfp74/38300517331.pdfIn PDF document text
  • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/acaa2ae5c0f5c01fcd5482df97c54c53/guvawuvaxugepereworesab.pdfIn PDF document text
  • http://grandioso.asia/editor_upload_image/file/duziralumuv.pdfIn PDF document text
  • http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/32002834167.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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