Malicious PDF — malware analysis report

Static analysis result for SHA-256 223430053c190bda…

MALICIOUS

PDF

12.5 KB
MD5: 2defb1e74eb42ccde85bc89dc0f47b93 SHA-1: 016c1fd657f188ab622edeba93c8048338aa0f5d SHA-256: 223430053c190bda2020f24d6c51b24b5a7c6c6bf1ddb858746f467f153d1a15
106 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for Pdf.Exploit.Agent-36723 and a high ML classifier score. It contains embedded JavaScript, which is likely responsible for executing the exploit. The embedded JavaScript stream, named javascript_obj0076_000.js, is the primary artifact associated with the malicious activity.

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
767d09dfa8b4e3efccb3955c8583edce611bf6573f2979415c11336ac5cfb0c4
pdf-javascript-stream PDF /JS object 76 at offset 0x369 11684 bytes