Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a794cf60501c433…

MALICIOUS

PDF

35.8 KB Created: 2021-08-19 12:22:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 55366238030c6cb9a502e1701522bb0f SHA-1: 0fa1f51ff2ad193577a3801d2a0801b934ac63dd SHA-256: 4a794cf60501c433fbc7ad5d299d501c5705122ff63fed6e931895678c5f1a92
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-only nature and embedded clickable action. It contains external URLs that likely lead to malicious content. Although no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest it's designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7689

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://biorenta.lt/ckfinder/userfiles/files/lukililiregedudubuz.pdf In PDF document text
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/ebc1f2be977030266ab90ce711In PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=modo+de+producci%C3%B3n+feudalismo+caracter%C3%ADsticasPDF link annotation

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