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.
• 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.
• 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://pistant.ru/uplcv?utm_term=auto+keyboard+presser+for+games+free PDF link annotation

  • http://ventilyatsia-v-sochi.ru/ckfinder/userfiles/files/togomavufojipaxilujulu.pdfIn PDF document text
  • http://jshanwoo.com/ckfinder/userfiles/files/vawizapiritibo.pdfIn PDF document text
  • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/68cvkriatm68f2oed92bspgln3/pikemiruz.pdfIn PDF document text
  • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160928cfcea4ac---66761681124.pdfIn PDF document text
  • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/3be04c87d2fdd67d5ef96c047afd9a8b/60518217594.pdfIn PDF document text
  • https://medtek.vn/storage/file/25911504930.pdfIn PDF document text
  • https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/d0be1c752c4b09d9c3ce36f5f2638b02/94516109278.pdfIn PDF document text
  • https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098389d573c1---4819920726.pdfIn PDF document text
  • http://otohyundaidanang.com/uploads/image/files/62671069537.pdfIn PDF document text
  • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160835d62c2423---daguvuxujutus.pdfIn PDF document text
  • http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e201981b64---27363462303.pdfIn PDF document text
  • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/16092322a7491b---gifupupas.pdfIn PDF document text
  • https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/160904040450bb---70847310700.pdfIn PDF document text
  • http://ambulatorioveterinariorigolon.eu/userfiles/files/ramijemipemaxowumaj.pdfIn PDF document text
  • https://bikinibody.be/wp-content/plugins/super-forms/uploads/php/files/hr779ls1ln8l6tfkr1h21gt7h3/vupudariraxidu.pdfIn PDF document text
  • http://battlegrouponline.com/app/webroot/js/ckfinder/userfiles/files/nodagiferadijuro.pdfIn PDF document text
  • https://aldaserwis.pl/ckfinder/userfiles/files/12738213125.pdfIn PDF document text
  • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160f5dc6152c0e---44805516109.pdfIn PDF document text
  • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/71689c5054fb3f734e30dbb462bdff01/95293020215.pdfIn PDF document text
  • https://mimpiindahsatu.com/contents//files/zitadineji.pdfIn PDF document text
  • http://anhuizhkj.com/upload_fck/file/2021-5-25/20210525185120283619.pdfIn PDF document text
  • http://cdmatik.com/uploads/file/93185047359.pdfIn PDF document text
  • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1609459b2ea132---ninevonoxe.pdfIn PDF document text
  • https://jnvhardoi.org/ckfinder/userfiles/files/8340515286.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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