Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cfba4fa2e79259f…

MALICIOUS

PDF

52.3 KB Created: 2021-08-11 23:48:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 7c20f89437493e4b48f732366a3f0e0b SHA-1: 3b17e1d339ef7770aef8c54cc82fcc5d068a14ce SHA-256: 9cfba4fa2e79259fbd09f85fb571e2184ddd4f0913420f460366c617af2b4e67
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a signature indicating it is a phishing trojan. It contains an embedded URI pointing to a URL that promises a "file viewer plus serial key free", a common lure for phishing or malware distribution. The PDF metadata indicates it was generated by wkhtmltopdf, which can be used to create malicious PDFs.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4220

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/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=file+viewer+plus+serial+key+free PDF link annotation

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