Malicious PDF — malware analysis report

Static analysis result for SHA-256 0adf913c94f3c662…

MALICIOUS

PDF

2.5 KB
MD5: aae4d676ec89600a70f6a77ffddcc292 SHA-1: 6c7941809f828ff1bb4257dc11940ae4405f6617 SHA-256: 0adf913c94f3c662e8ab155726ecba0d29ae32e3d4fdb4e2deb65c4980caf645
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and ClamAV with a critical heuristic for obfuscated JavaScript. The embedded JavaScript is likely designed to download and execute a second-stage payload, a common technique for malware delivery. Given the lack of other content, the primary attack vector is presumed to be spearphishing.

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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