Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://archism.ru/uplcv?utm_term=android+studio+javascript+code PDF link annotation

  • http://ardennes.proximeo.com/ckfinder/userfiles/files/gupumipaxataruxizofari.pdfIn PDF document text
  • https://stayinbranson.com/ckfinder/triplebuserfiles/file/40382796641.pdfIn PDF document text
  • http://fvv-hohenfelde.de/sites/default/files/files/44220024374.pdfIn PDF document text
  • http://alrabbanoilandgas.com/file/files/detoxolosovevewu.pdfIn PDF document text
  • http://prttour.ca/FileData/ckfinder/files/20210909_0F49C463D02DF587.pdfIn PDF document text
  • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613977a246409---nakuwesusasubanoxopi.pdfIn PDF document text
  • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613a21949fe30---60651414295.pdfIn PDF document text
  • http://seanmore.com/userData/board/file/95199868096.pdfIn PDF document text
  • http://winso.tw/userfiles/file/92748733625.pdfIn PDF document text
  • https://seger.cz/userfiles/file/22031984271.pdfIn PDF document text
  • http://soncongnghiepjotun.com/media/ftp/file/58837835172.pdfIn PDF document text
  • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613262c98b304---80624568747.pdfIn PDF document text
  • http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613e72514002a---30216684658.pdfIn PDF document text
  • https://funbugs.ie/userfiles/file/33123472227.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/17676298594.pdfIn PDF document text
  • http://futureinfashion.com/ckfinder/userfiles/files/kemapagokonigapavibof.pdfIn PDF document text
  • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/1nv8l85h5c2pa7m097rps8ddda/busegesawixupedilekalav.pdfIn PDF document text
  • https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/46b6e9149c0b0a41876ac1e24d2682e3/parodezuvorexezidani.pdfIn PDF document text
  • http://struttur-arch.it/userfiles/files/pomokatexapagenopabi.pdfIn PDF document text
  • http://quesnelbusinessnetwork.ca/userfiles/file/gidixebuwek.pdfIn PDF document text
  • http://1137.jp/app/webroot/js/ckfinder/userfiles/files/97838870147.pdfIn PDF document text
  • http://mexvp.com/ckfinder/userfiles/files/xupebonosimit.pdfIn PDF document text
  • http://w-f-l.de/user_img/file/jitamajon.pdfIn PDF document text
  • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144564b93f6c---15126420835.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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