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
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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://laborke.ru/uplcv?utm_term=truecaller+app+not+installed PDF link annotation

  • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/1a73b2bd3158cbca1dfaddc95878ba08/83892068972.pdfIn PDF document text
  • http://aquaclub.hu/userfiles/file/39109962789.pdfIn PDF document text
  • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ffbbc80483---33444130163.pdfIn PDF document text
  • http://support-cmu.com/filedata/file/87119182831.pdfIn PDF document text
  • https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/2usrqlm8m6ki74ho748ejgoevm/merozekizi.pdfIn PDF document text
  • http://ampletrekking.com/userfiles/file/kifinozixuwuvakubil.pdfIn PDF document text
  • https://advantage.ee/media/contents/file/53260352740.pdfIn PDF document text
  • http://krakow4you.pl/krakow/files/67170067050.pdfIn PDF document text
  • https://homeuu.biz/upload/ckeditor/pages/files/tolilirularovibepavorepu.pdfIn PDF document text
  • http://shop-exclusive.cz/userfiles/file/tomidav.pdfIn PDF document text
  • https://www.area-tlc.com/public/ckfinder/userfiles/files/xaxunanuvonunozugele.pdfIn PDF document text
  • http://novosib-sport.ru/ckfinder/userfiles/files/81324589082.pdfIn PDF document text
  • https://psystat.net/candyticket/uploads/page_images/files/zovusudojijolazi.pdfIn PDF document text
  • https://minervatech.work/js/ckfinder/userfiles/files/wowesuzakuxitivo.pdfIn PDF document text
  • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1614232e34675e---julisuvafafululawelusa.pdfIn PDF document text
  • http://madonnina.info/userfiles/files/bomevew.pdfIn PDF document text
  • http://pensjonatagat.pl/userfiles/file/sarelul.pdfIn PDF document text
  • https://markapin.com/calisma2/files/uploads/bisugez.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/pivedukikitebed.pdfIn PDF document text
  • https://epagneuls-bretons.fr/caningest/images/file/69836147273.pdfIn PDF document text
  • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16132cd4a679ae---ximuz.pdfIn PDF document text
  • http://elosc.com/upFile/file///ITX202109172005123385.pdfIn PDF document text
  • http://valdhans.cz/userfiles/file/39146308803.pdfIn PDF document text
  • http://tunglamgarden.com/images/fck/file/monejatulubufumine.pdfIn PDF document text
  • https://cambodiadriverservice.com/userfiles/file/jemuwofesobipuri.pdfIn PDF document text
  • https://www.mds-horizons.com/upload/files/99544006385.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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