Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd72d05306f0b767…

MALICIOUS

PDF

111.9 KB Created: 2021-09-11 08:57:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: c33321c387da3d90cb87713cc1ec4635 SHA-1: f6e6c59853c3ace3a2085c3fd8322e7de559f69b SHA-256: cd72d05306f0b7671ba031914792c346954c1f587c9367f77d8ca493e57132e7
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://ktcz.eu/files/files/solidanaxewov.pdf In PDF document text
    • http://universalgroupautos.com/files/others/sarubasutazot.pdfIn PDF document text
    • https://pioneerlift.com/upfiles/editor/files/topibejotinogema.pdfIn PDF document text
    • http://sdds.be/userfiles/file/rokokekamavojixavaso.pdfIn PDF document text
    • https://kampusogrenciyurdu.com/file/65777212538.pdfIn PDF document text
    • http://lagostena.it/userfiles/files/90753090325.pdfIn PDF document text
    • https://sportuna.be/ckfinder/userfiles/files/buwiluvapezez.pdfIn PDF document text
    • https://wfca-czech.cz/temp/userfiles/files/59577172038.pdfIn PDF document text
    • http://vibestedu.com/_UploadFile/Images/file/gevesepazuwu.pdfIn PDF document text
    • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/161311d48c783a---wokasajorozutagexol.pdfIn PDF document text
    • http://gaziogluenerji.com/images_upload/files/pivojufelarufa.pdfIn PDF document text
    • https://centaur.vri.cz/docs/files/gofetisuremopidaba.pdfIn PDF document text
    • https://vanvoorst.info/uploaded/file/40978430320.pdfIn PDF document text
    • https://tomas-music.com/contents/files/82744653472.pdfIn PDF document text
    • http://roycraft.ca/userfiles/file/vizefatotiges.pdfIn PDF document text
    • https://totalmediasolutions.ae/ckfinder/userfiles/files/jekefapinakowamalub.pdfIn PDF document text
    • http://globalcenterhotels.com/bot/ckfinder/uf/files/sowebigopovarivepitiza.pdfIn PDF document text
    • http://yoshitomo-kokubunji.com/jcfiles/file/78823063292.pdfIn PDF document text
    • https://watfordfairtrade.org/app/webroot/img/files/xalabazavixusovosen.pdfIn PDF document text
    • http://adabaskimerkezi.com/upload/file/zijufizonoxozilozonugeb.pdfIn PDF document text
    • http://eachfun.com/ckfinder/userfiles/site_eachfun_com/files/kanuwetinujosadupakegatog.pdfIn PDF document text
    • https://melz-feu.ru/upload/maxuge.pdfIn PDF document text
    • http://peaceinsrilanka.lk/ckfinder/userfiles/files/lidafemogawaxamudapeloba.pdfIn PDF document text
    • http://sportsbettingconsultants.net/cote_dor_import/admin/ckfinder/userfiles/files/68667590568.pdfIn PDF document text
    • https://mcq-exambd.com/app/webroot/ckfinder/userfiles/files/nibusumonavunorax.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=update+windows+11+from+windows+10PDF 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_off000151b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x151B7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000169ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x169CE 10880 bytes
SHA-256: 325e45369baa887911bb3281c9156859ba8eebcf1e083feb8794a5e79d3fb1d9
font_02_sfnt_off00018311.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18311 18000 bytes
SHA-256: 8923714b7acc0ea11eed4635293d3b9aa6cb85254d567cde82f91556a5963b76