Malicious PDF — malware analysis report

Static analysis result for SHA-256 425ed748e8e47f8c…

MALICIOUS

PDF

100.1 KB Created: 2021-09-10 19:56:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 690b8112c0f5864ac9c04aaf083d9c11 SHA-1: 566ca32f38eb493b26299e40cb3556e0154bbb30 SHA-256: 425ed748e8e47f8c287fe7040d28afc5527ecabca25fef654ee9bb2a49240f87
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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
  • 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 https://by-express.com/upfiles/editor/files/banonosujalukabemivudevem.pdf In PDF document text
    • https://aspit.ro/imagini_ws/medizugogemo.pdfIn PDF document text
    • http://dennehylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kexazupuvosi.pdfIn PDF document text
    • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16134391508b9c---86017441130.pdfIn PDF document text
    • http://veiligheidssloten.nl/ckfinder/userfiles/files/xitejebuziderem.pdfIn PDF document text
    • http://podarox.ru/public/files/10394552638.pdfIn PDF document text
    • http://esangsok.com/upfile/files/74761156857.pdfIn PDF document text
    • http://rebeccafantarchitetto.it/userfiles/files/69885172340.pdfIn PDF document text
    • http://langeline.com/ckeditor/upload/files/loxazejegupoxasogut.pdfIn PDF document text
    • https://angelsforwarriors.org/userfiles/files/milubogowo.pdfIn PDF document text
    • http://sarljarry.fr/userfiles/file/42260560418.pdfIn PDF document text
    • http://incomingmakedonia.com/files/files/59276933626.pdfIn PDF document text
    • http://robertfeinberglaw.com/images/edit_images/file/3064354230.pdfIn PDF document text
    • http://hamlineparkplaza.com/assets/amund/ckfinder/userfiles/files/72208671758.pdfIn PDF document text
    • http://espwireless.net/uploads/file/suzikejat.pdfIn PDF document text
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16132f2e0171c9---96140854581.pdfIn PDF document text
    • http://pressvaluation.net/FCKeditor/editor/filemanager/connectors/userfiles/file/xipomuwazirizoviru.pdfIn PDF document text
    • https://www.serwkom.pl/plugins/ckfinder/userfiles/files/mowerewifasotukovo.pdfIn PDF document text
    • https://hse.tw/upload/file/15925851302.pdfIn PDF document text
    • http://birkhoffhi.com/userfiles/files/damipunojumasakamibajo.pdfIn PDF document text
    • https://foulardfotografando.it/file/zuwikavavetar.pdfIn PDF document text
    • https://coaching-jk-academic.com/ckfinder/userfiles/files/20518458005.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=the+technique+of+acting+stella+adler+pdfPDF link annotation
    • http://cluster006.ovh.net/~greeters/namur/ckfinder/userfiles/files/xuvor.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012080.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12080 18688 bytes
SHA-256: 12494f93a5450ca94fa3566d3e0500c20e03254c453c81f813b7a2050ee5fd4a
font_01_sfnt_off00015107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15107 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001691e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1691E 11108 bytes
SHA-256: b430820c5bd2df7ace55bcc986da6399dc57b73142b984f14139d5150badd4ca