Malicious PDF — malware analysis report

Static analysis result for SHA-256 279fbd8c904a0da5…

MALICIOUS

PDF

12.4 KB
MD5: b41c77725035647fdd8d8971e81fa5f1 SHA-1: b00a5e53f9abd86623cb6ec5d06131ec145a4f2c SHA-256: 279fbd8c904a0da5a0e470f8985cc187488bdf009d752824ad10e5c9f6bbbf34
106 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by multiple heuristics, including a high-severity ML classifier and ClamAV detection identifying it as Win.Trojan.Agent-36281. Embedded JavaScript streams were detected, indicating an attempt to execute malicious code, likely to exploit vulnerabilities within the PDF reader.

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
d10e639044884980ea662d298be5763a3bb4b691b6e98b9f08c8795998b5b6f2		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11568 bytes

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