Malicious PDF — malware analysis report

Static analysis result for SHA-256 c38b27492fc1b9cb…

MALICIOUS

PDF

3.2 KB
MD5: ce9dbd2c16e994cc2cc99f0657a1e4ee SHA-1: bd608b08ea6f31fe36dd73cb7e46f36caa0d775e SHA-256: c38b27492fc1b9cb80ba6c27fee8bb5309486bf576d8faf548b37c1efec06359
106 Risk Score

Malware Insights

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

The PDF file was detected by ClamAV as Pdf.Exploit.Agent-36121 and flagged by an ML classifier with high confidence. It contains embedded JavaScript, indicating an attempt to exploit vulnerabilities within the PDF reader to execute malicious code. The embedded JavaScript is likely responsible for downloading and executing a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
  • 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_obj0007_000.js
91754ab30f77242eba5d8084aefc60fe385725330a89eb68040bcd384f13a96b		 pdf-javascript-stream PDF /JS object 7 at offset 0x9C9 445 bytes

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