Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://krisoc.ru/uplcv?utm_term=preview+premium+mod+apk PDF link annotation

  • http://baovecongtruong.com/upload/files/73482695789.pdfIn PDF document text
  • https://ntpuvoice.com/ckfinder/userfiles/files/80419060675.pdfIn PDF document text
  • https://www.dtd.com.pk/ckfinder/userfiles/files/93740700301.pdfIn PDF document text
  • http://www.rafaellucenaehijos.com/ckfinder/userfiles/files/70488798133.pdfIn PDF document text
  • https://karapinarinsaat.net/userfiles/upload/file/sapitofadomamafudumax.pdfIn PDF document text
  • http://poltinik.ru/userfiles/file/2323776825.pdfIn PDF document text
  • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/712b79143bb1a025752c237aeed31855/rawizuximigomuvuvikozef.pdfIn PDF document text
  • http://aire-limpio.com/img/editor/file/wuzodipewalewufunozivevov.pdfIn PDF document text
  • https://homeuu.biz/upload/ckeditor/pages/files/55539482723.pdfIn PDF document text
  • http://bitree.net/ckfinder/userfiles/files/nipikomebazunukesu.pdfIn PDF document text
  • https://medpressa.ru/files/file/70476447805.pdfIn PDF document text
  • https://demo.wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/52459335029.pdfIn PDF document text
  • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/m3l35r4i3hhnom2dttgdljpnk2/70849500686.pdfIn PDF document text
  • http://kukubara.com/zdjecia/file/24561263978.pdfIn PDF document text
  • https://maydangson.com/vietkiendo/upload/file/vesovopajokirekon.pdfIn PDF document text
  • https://hohsingfiber.com/ufiles/files/rusovim.pdfIn PDF document text
  • http://taxicityplus.ru/userfiles/file/maranasirabet.pdfIn PDF document text
  • https://torgradio.ru/new/files/file/nugasezuzizekupajujaluger.pdfIn PDF document text
  • https://zhongzing.com/uploads/files/202109221600293563.pdfIn PDF document text
  • https://lexconsulting.ro/webroot/files/media/16814918240.pdfIn PDF document text
  • https://sudhirsachdevaclasses.com/ci/userfiles/files/93615407690.pdfIn PDF document text
  • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135d8506442f---sezizurapanenatesagedegu.pdfIn PDF document text
  • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/k0dd1tahn9p4h7mg4729h1hgg0/wifatufiwepexonafuxel.pdfIn PDF document text
  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/85059314f63bacc11fd06166ecb5ee7f/lidugewojofiwulusitix.pdfIn PDF document text
  • https://rarahil.org.np/ckfinder/userfiles/files/vifal.pdfIn PDF document text
  • https://ripedzn.com/app/webroot/files/fckeditor/file/11128359350.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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