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.
• 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.
• 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 https://synerhu.ru/uplcv?utm_term=hack+catchers+zombie PDF link annotation

  • https://chp-travel.ir/data/file/luzidaj.pdfIn PDF document text
  • http://fcgo.tw/uploadpic/files/guwatirupinevorozapegibob.pdfIn PDF document text
  • https://webrobogo.hu/kepek/lefelaputetazip.pdfIn PDF document text
  • http://vtaky.sk/media/file/87545188952.pdfIn PDF document text
  • https://purevdavaa.mn/uploads/ckfinder/files/24480291070.pdfIn PDF document text
  • http://actlogistic.vn/upload/editor/files/55990229651.pdfIn PDF document text
  • https://wangwangcamp.com/uploads/files/202109060607003249.pdfIn PDF document text
  • http://sin-hua.org/userfiles/nuzig.pdfIn PDF document text
  • http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613ab0bbee7e3---41113515566.pdfIn PDF document text
  • http://highdeal.linkeo.net/ckfinder/userfiles/files/65103877913.pdfIn PDF document text
  • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/c6331ed2deb77e6e20a98cf9e92b2c04/mutexup.pdfIn PDF document text
  • https://eclearusa.com/images/file/7261542059.pdfIn PDF document text
  • https://pre-www.bridge-academy.com/uploaded/ckeditor/files/65996838715.pdfIn PDF document text
  • https://adlinefor.com/home/webagen/public_html/korn/data/file/duxar.pdfIn PDF document text
  • http://vidol.eu/userfiles/file/65662964497.pdfIn PDF document text
  • http://jd6618.com/jd6618/file/2021-9/file/LwpCms2021_09_11_07_08_59_8801.pdfIn PDF document text
  • http://lawyersmarketingusa.com/user_upload_image/file/In PDF document text
  • http://mtreurope.com/ckfinder/userfiles/files/57964018889.pdfIn PDF document text
  • https://portalbime.com/UploadedFiles/New/file/zuretapijisufejonude.pdfIn PDF document text
  • http://energyexcess.com/userfiles/file/jegabime.pdfIn PDF document text
  • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/28bea10a92a8f41255c5b7efc9c93e8d/96894255536.pdfIn PDF document text
  • http://pileshoppen.dk/userfiles/file/92553958727.pdfIn PDF document text
  • https://kermoulin.com/userfiles/file/rasirijufudimifivude.pdfIn PDF document text
  • http://carzip.biz/files/uploads/files/18519444455.pdfIn PDF document text
  • http://boek.se/bilder_umeny/File/xexil.pdfIn PDF document text
  • http://naturallabs.de/userfiles/file/8424395482.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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