Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3c67ab0d40906fb…

MALICIOUS

PDF

12.6 KB
MD5: 6514bb62f86d82e16933fef781a20ffd SHA-1: 33b70479b276bbaa7f6e7088e227c431553a987c SHA-256: b3c67ab0d40906fb6992b03183b60de59333c31f9cbc20adc55bb04727ba10f2
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by multiple heuristics and the presence of a large JS stream. ClamAV detection as 'Pdf.Exploit.Agent-36723' strongly suggests this JavaScript is malicious and exploits a vulnerability within the PDF reader to execute. The likely intent is to download and execute a second-stage payload.

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
9f14a764d27805f6a1f4b2f6a949ebac08d0a9ac7debff36830e82dbeb3db4b5		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11799 bytes

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