Malicious PDF — malware analysis report

Static analysis result for SHA-256 425b1381e7271ee4…

MALICIOUS

PDF

119.2 KB Created: 2021-07-30 01:22:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 5c0445e39f0720fbdd2d6344d6d2972c SHA-1: 501220e53a482666877e854c20a7ff488b95f0ea SHA-256: 425b1381e7271ee4197921aefbea636fcc34c924a07bc39d373a57f3f5f7d850
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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
  • 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
  • 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 http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085812ff2bf0---nasevivusedufije.pdf In PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/800bc14cdf6f593d4dc3470bf67adf03/18676373949.pdfIn PDF document text
    • https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/pgr5spk6mdpim07u9nfa0j5s5u/xojepunoxovotezobodif.pdfIn PDF document text
    • http://asupuro.com/user_data/image//file/koripedixamuxajem.pdfIn PDF document text
    • https://vanphongphamhienluong.com/upload/files/vovuforiwa.pdfIn PDF document text
    • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fbbba0e8d0---valilasupesomegoba.pdfIn PDF document text
    • https://alexandrapanayotou.com/web/images/static/file/60173270842.pdfIn PDF document text
    • http://talcmanagement.com/uploaded_files/userfiles/files/17992783716.pdfIn PDF document text
    • http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/e4rbcp4olork9rj6fkglbbbra3/mekifufapobuvekepa.pdfIn PDF document text
    • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/73030d11b71fda14ce41c0de4c21e4b2/dokar.pdfIn PDF document text
    • https://at1-turbo-j3t.com/contents//files/bexokudufarosiwe.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160edd77772f9a---gejunute.pdfIn PDF document text
    • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/79274341246.pdfIn PDF document text
    • http://centralwestwoodclassof1983.com/clients/c/cd/cd4b3c89dd1500142a52f05b9125c350/File/54636343540.pdfIn PDF document text
    • https://andrejc.si/files/file/80328799565.pdfIn PDF document text
    • http://dnepropress.net/files/file/53581874688.pdfIn PDF document text
    • https://chrmglobal.com/userfiles/file/24045422033.pdfIn PDF document text
    • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/1608545752ef17---49069828789.pdfIn PDF document text
    • https://mobile-translator.eu/app/webroot/media/files/ravoxabejonivatol.pdfIn PDF document text
    • http://a-kamen.com/userfiles/file/56565016962.pdfIn PDF document text
    • https://rajaketiga.com/contents//files/14788284913.pdfIn PDF document text
    • https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/qm2iqj8lg2l5a8otea8b3a0nba/93457963431.pdfIn PDF document text
    • http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/73e4215cce055bbdeeffc14acd0e4d3b/gafilevo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=les+dieux+sont+tomb%C3%A9s+sur+la+t%C3%AAte+film+complet+streaming+vfrPDF link annotation
    • 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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000161f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x161F7 11644 bytes
SHA-256: 093ce4c1257f95932f0be62fc9dff2489965deed9c29a389a8452ae1e8d88925
font_01_sfnt_off00017c9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17C9E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000194b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x194B0 21320 bytes
SHA-256: 7352f74aa0a8dd2dfc16b3e64b7c9796dd78f98110f690ee16f49a46fd6cee2c