Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Invisible PDF links to CAPTCHA-themed web lure high PDF_CAPTCHA_LINK_LURE
  PDF contains invisible clickable link annotations that point to a CAPTCHA/capcha-themed web path. This is a common phishing and ClickFix-style routing pattern: the PDF itself is inert, while the linked page performs the credential prompt or fake verification.
• 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.
• 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://alasclub.gr/neuro/ckfinder/userfiles/files/pebibiwetukujope.pdf In PDF document text

  • https://dynasty888.com/image/files/20210902_232434.pdfIn PDF document text
  • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148f9549474f---82925877867.pdfIn PDF document text
  • https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/560d37a6d0637af96fba811e2d5a1e10/38644627240.pdfIn PDF document text
  • http://cy2hand.com/userfiles/73034196239.pdfIn PDF document text
  • http://halongbaycruises.org/upload/files/runatorogovelipule.pdfIn PDF document text
  • https://www.larche-de-jules.fr/ckfinder/userfiles/files/38906641127.pdfIn PDF document text
  • https://la-klamm.org/Files/files/jefemadetolufuzup.pdfIn PDF document text
  • http://laiksmodalux.lt/app/webroot/uploads/userfiles/files/31733621291.pdfIn PDF document text
  • http://cheapmarkt.com/userfiles/file/63446477890.pdfIn PDF document text
  • http://detskypohar.cz/upload/file/ximezud.pdfIn PDF document text
  • http://polymer-optix.de/userfiles/file/zuwipezovij.pdfIn PDF document text
  • https://biothiennam.com/media/ftp/file/genigivurabugorawoxogu.pdfIn PDF document text
  • http://reyazahmad.bscsaoner.in/ckfinder/userfiles/files/gugirerumifaxivarazekeme.pdfIn PDF document text
  • https://ls-machinery.com/uploadpic/files/202109151546355294.pdfIn PDF document text
  • https://swagath.co/new/ckfinder/userfiles/files/45124922292.pdfIn PDF document text
  • http://hurtowniagrafit.pl/userfiles/file/mezizafefadudideji.pdfIn PDF document text
  • http://big-blue-bus.com/pics/fotos/1/file/69343153894.pdfIn PDF document text
  • http://koszyczarek.pl/userfiles/file/magumulagosususo.pdfIn PDF document text
  • https://mar3ol.com/Files/files/fusuloruleperedaforir.pdfIn PDF document text
  • http://scbczy.cn/up_files/file/20210908_112359.pdfIn PDF document text
  • https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/71a116f9fe8555383196e283ae0f7c90/nalagilezuxe.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=captcha+typer+app+downloadIn 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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