Malicious PDF — malware analysis report

Static analysis result for SHA-256 70f81c8ee90b40c4…

MALICIOUS

PDF

8.3 KB
MD5: ddb24bf61860961cde0489f7609ada58 SHA-1: f4b3f6a6e4e018cf51dc4f36360550c3a6f1c87e SHA-256: 70f81c8ee90b40c45d1ff9ac7f7dfe0b8aece2fea37e7cddbac5ad933eefc298
106 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, flagged by multiple heuristics including a high-confidence ML classifier and ClamAV. This JavaScript is likely responsible for downloading and executing a second-stage payload, a common technique for malware delivery. The presence of JavaScript points to T1059.007, and the likely delivery method via email attachment suggests T1566.001.

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.