Malicious PDF — malware analysis report

Static analysis result for SHA-256 63ff678aec2b43ac…

MALICIOUS

PDF

35.9 KB Created: 2021-09-25 03:22:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 76c7689229131ebe9008cbe1183c2055 SHA-1: aa92a7b4fa6c7e8084e90e1ee70bbcf5875a0fb0 SHA-256: 63ff678aec2b43ac98a2dce9aa59a6da95b7c9b8845ac1deb199b3a4643aa9bd
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical for phishing attacks. It contains an external URI that points to a suspicious domain, likely intended to redirect the user to a malicious site. ClamAV and ML classification also indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7249

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 35 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://huntic.ru/uplcv?utm_term=android+version+13+release+date
    • https://birotex.rs/images/files/95771752741.pdf
    • http://myblindz.com/fck_user_files/file/jojivonusemebamisafex.pdf
    • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server

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