Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
  Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
• Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://wastran.ru/uplcv?utm_term=vanavil+avvaiyar+font+free+download+for+android.
• 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://wastran.ru/uplcv?utm_term=vanavil+avvaiyar+font+free+download+for+android PDF link annotation

  • https://tahitotfaluovodak.hu/ckfinder/userfiles/files/xevelul.pdfIn PDF document text
  • https://vivaldiroberto.com/img/files/mediafiles/file/70197466099.pdfIn PDF document text
  • http://youandisagenix.com/ckfinder/userfiles/files/buvow.pdfIn PDF document text
  • https://nacionalequipamentos.com/ckeditor/uploads/files/19790768043.pdfIn PDF document text
  • http://svazekobciorlice.cz/userfiles/file/33025051179.pdfIn PDF document text
  • https://girilawfirm.com/content_files/files/fojezurixew.pdfIn PDF document text
  • https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/ne3tj32j5qu4fg71of2upuu7g5/kerinofozagulix.pdfIn PDF document text
  • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141efdaafd33---95357970252.pdfIn PDF document text
  • http://paoladebenedetti.eu/userfiles/files/lotexe.pdfIn PDF document text
  • https://makojudo.pl/zdjecia/fck/file/11432562969.pdfIn PDF document text
  • http://devison-matras.com/upload/file/25630931027.pdfIn PDF document text
  • http://riph.pl/userfiles/file/30625582987.pdfIn PDF document text
  • http://arredamenticucinesiciliane.it/userfiles/files/disejaleropebomota.pdfIn PDF document text
  • http://nemeckystrakac.sk/editor_uploads/files/pikef.pdfIn PDF document text
  • https://chambres-hotes-aube-bleue.fr/userfiles/file/delem.pdfIn PDF document text
  • https://dakotaterritorydevelopment.com/ckfinder/userfiles/files/37290318749.pdfIn PDF document text
  • http://dfanchem.com/upload/files/80494091582.pdfIn PDF document text
  • https://noelex22.org/userfiles/file/zadezepaj.pdfIn PDF document text
  • https://priscar.com/documents/files/28479006067.pdfIn PDF document text
  • http://myphamasia.net/upload/files/14430597376.pdfIn PDF document text
  • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/c5efb7bb542734b0c7571dc2dce290ea/patodoka.pdfIn PDF document text
  • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/16137ec13ca28d---44185296694.pdfIn PDF document text
  • http://coral-travel66.ru/admin/ckfinder/userfiles/files/81530791249.pdfIn PDF document text
  • https://osikovo.eu/webroot/img/content/files/kexogilanozupimewej.pdfIn PDF document text
  • http://kielcenoca.pl/files/file/26585519228.pdfIn PDF document text
  • http://klaaswester.nl/img/file/2937219399.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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