Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a02c4c112cac792…

MALICIOUS

PDF

12.7 KB
MD5: 070c494bedea8d1982357286dc2a5724 SHA-1: c42a5cdc5198250240eb882afcc8927d1fbac86b SHA-256: 1a02c4c112cac79216cc81d18b19fd813a8c88e5583efd3acce1fdb401cc5ecc
106 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File

The PDF file contains embedded JavaScript, as indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as Win.Trojan.Agent-36281. The embedded JavaScript is likely responsible for executing malicious code or downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Win.Trojan.Agent-36281 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Agent-36281
  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0076_000.js
e8aecb69ca6fef8def022b8723aa1b4b5c225d41c1abb6f0f449d45295ad17d3		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11886 bytes

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