Malicious PDF — malware analysis report

Static analysis result for SHA-256 461caa5ad7a88620…

MALICIOUS

PDF

12.4 KB
MD5: 8747c415ae6033431ebfa3a17031f0a8 SHA-1: 5a3eaa3bce3c1824f2a33a5accf08fdd20cd58b8 SHA-256: 461caa5ad7a88620fd0d2178e94e1126948bdc3fd4e344806eadea55c2ae9e55
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings and the presence of a JavaScript object. ClamAV detection as 'Pdf.Exploit.Agent-36723' strongly suggests exploitation of a PDF vulnerability to execute this script. The script's purpose is likely to download and execute a secondary payload, a common technique for initial access.

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
765ca5557a984109c5df28a309880bcbb9521c82efcb708dec5ee7562db0b73b		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11582 bytes

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