Malicious PDF — malware analysis report

Static analysis result for SHA-256 05e4bfa3b69c7b46…

MALICIOUS

PDF

77.7 KB Created: 2021-07-04 03:23:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-27
MD5: 272d25148d905f770fa124ebd56e9428 SHA-1: 5ee8a217e05051ebb0bf6c2d420e4495a65f8cd6 SHA-256: 05e4bfa3b69c7b465386c399cf25a0d03b8c83fbee4fe9f30fe7bcc110a26743
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links, many pointing to compromised WordPress sites, indicating a link farm designed to distribute malicious content or phish users. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. The document body is heavily obfuscated and unreadable, providing no direct clues to its specific intent beyond the link farm.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4930

Heuristics 5

  • 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 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://sandzak.best/wp-content/plugins/super-forms/uploads/php/files/1c2e7c3773702eeb4bcb1d5f0a5fe6d4/butatopokitex.pdf In PDF document text
    • https://samoinstitute.mn/uploads/assets/file/22318569837.pdfIn PDF document text
    • https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/295732hkdqv7kek2lvvrfu4bge/juwimidopatonegi.pdfIn PDF document text
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7798d0993e---gijuzin.pdfIn PDF document text
    • http://www.maderas-navarro.com/ckfinder/userfiles/files/13406694106.pdfIn PDF document text
    • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607faa684f9d8---vurukifazawe.pdfIn PDF document text
    • https://xn--fct8ml6mwue.tw/uploads/files/68916520843.pdfIn PDF document text
    • https://musikkursus.dk/userfiles/file/xafapapijapagujovede.pdfIn PDF document text
    • http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608eefe32455d---95965600416.pdfIn PDF document text
    • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/f23b684a2525b28948e46e27cd04724a/94877604600.pdfIn PDF document text
    • https://pakistanchristiancongress.org/userfiles/file/rerabiganuwanetekimik.pdfIn PDF document text
    • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160889d2408608---41742406120.pdfIn PDF document text
    • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a83044afbe0---24404480274.pdfIn PDF document text
    • http://casaledellasignora.it/userfiles/files/jewumabuterilirul.pdfIn PDF document text
    • https://ecohort.info/userfiles/files/tezafegosawi.pdfIn PDF document text
    • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4883a99c1a---40545244679.pdfIn PDF document text
    • http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083eebeb1b22---29977635077.pdfIn PDF document text
    • http://townsendrogersfamilyreunion.com/clients/9/91/912616e09393d205379ff76530a10a1f/File/39799472165.pdfIn PDF document text
    • http://fygl.net/uploads/file/180617401253.pdfIn PDF document text
    • https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/5eab85e5e3d97808b18b3ea1bcc7ba72/53750363817.pdfIn PDF document text
    • https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/8a2024367c079dcdc1cbd3655f1a7152/99788647693.pdfIn PDF document text
    • http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be4aae47dee---68557898961.pdfIn PDF document text
    • https://bakwanudang.com/contents//files/60880485276.pdfIn PDF document text
    • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/1606db52a9b9b8---tazadoxutojetelaratida.pdfIn PDF document text
    • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/8c6cabd41f06cbb3f721c4ab99ea40fa/63989959361.pdfIn PDF document text
    • http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081876c306ae---sepojewetunolisu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=sell+or+be+sold+grant+cardone+pdf+downloadPDF link annotation

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