Malicious PDF — malware analysis report

Static analysis result for SHA-256 386a5ddd9a3c01eb…

MALICIOUS

PDF

3.2 KB
MD5: 166d48de16a5398cd7bca8ba9ac606c4 SHA-1: 6bb35ff21d27d4105efcf84ad53d3bd1b85ceed9 SHA-256: 386a5ddd9a3c01eb4b8e3f0b8559ee4086aaacbec7e52cc9bbeccad51cb5d56a
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV identified this as Pdf.Exploit.Agent-36121, suggesting it exploits a known PDF vulnerability. The embedded JavaScript is likely responsible for the malicious behavior, potentially downloading and executing a secondary payload.

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
c2fbde264769e9a3e90f593f5382d05bcb0070eac6b8f85c99acb2eddf891f75		 pdf-javascript-stream PDF /JS object 7 at offset 0x9C9 455 bytes

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