Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec92d9efbb2b6929…

MALICIOUS

PDF

239.0 KB Created: 2021-06-17 17:27:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: fece2cde7e8ecdc6674a4b25a8b9ec2b SHA-1: 3e2cea1dbd0dc4b2737b101f6fe77d9573c21239 SHA-256: ec92d9efbb2b6929c40c55cb14c89e8ea9873cef36a4ce8f9b52440fc549b2e6
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a signature indicating phishing and trojan characteristics. It contains an embedded URL that, while currently classified as benign, was likely intended to direct the user to a malicious site. The document body is heavily obfuscated and contains metadata suggesting it was generated by wkhtmltopdf, which can be used to create malicious PDFs.

Machine Learning

  • Nyx PDF Classifier clean score 0.0235

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=word+crush+386 PDF link annotation

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