Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3d712462be6f550…

MALICIOUS

PDF

12.6 KB
MD5: b86d983c878001e97fcad7b24646814c SHA-1: fa62284e92af978200c58cb23b1555c81f05b7c1 SHA-256: b3d712462be6f550ed7fbe6020abab942c55499faa0190058cd0e9523ba48332
106 Risk Score

Malware Insights

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

The file is identified as a malicious PDF by multiple heuristics, including a critical ClamAV detection and a high ML score. The presence of embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics, suggests an attempt to exploit vulnerabilities within the PDF reader. The embedded JavaScript is likely responsible for executing a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36723 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36723
  • 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
6084ff214fa21f97378e94e0770b4ca90a0ce68ab4785b27a03c37a27b806b5e		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11797 bytes

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