Malicious PDF — malware analysis report

Static analysis result for SHA-256 28345fd837650d60…

MALICIOUS

PDF

16.0 KB
MD5: aa48c96e0e847639b2c27df58876f0d8 SHA-1: 0b45b0831a1b14e09a57dbc47d363ba4870b9192 SHA-256: 28345fd837650d60bea23c9ae7b2648bb70fcefa53aeda4ed6ca3e53eaf05759
106 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-36324', and an ML classifier with high confidence. It contains embedded JavaScript, which is a common method for exploiting PDF vulnerabilities to download and execute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36324 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36324
  • 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
aae099a76b0b08063376b3339000fd2af843b55b5abfe604c879fa8481b91e00		 pdf-javascript-stream PDF /JS object 76 at offset 0x2D4 15464 bytes

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