Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff35e82a3bd19146…

MALICIOUS

PDF

5.9 KB
MD5: b5aae5a5c34e4df54dae6d5bdf6a5115 SHA-1: 547344573f6c8bb0f98e9d901047b1e7b6cd9984 SHA-256: ff35e82a3bd19146df6c639bd25fffab9d5e9e5f1998e2d21d4ac2e604553eaa
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged by multiple heuristics, including a high-severity ML classifier and a critical ClamAV detection for obfuscated objects. The presence of JavaScript actions and embedded JS streams indicates an attempt to execute malicious code, likely to exploit a PDF vulnerability and download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.

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