Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a179dc313cc786c…

MALICIOUS

PDF

3.3 KB
MD5: 6aedddcb2368aabecc45f6b2d52da29f SHA-1: 18210e975f24ba23a4155fe22229333d327a547d SHA-256: 3a179dc313cc786c15e3f0171954f8886b6e638045899291ca53b8710b2d1765
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/Shell Script Execution: JavaScript Execution

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection 'Pdf.Exploit.Agent-36121' strongly suggests this JavaScript is malicious and exploits a vulnerability within the PDF reader. The embedded JavaScript is likely responsible for downloading and executing a second-stage 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
adb93c48061b51feb229f9d75bbb5dac2baf42a4ca3e7cbc6738f70388642ec0		 pdf-javascript-stream PDF /JS object 7 at offset 0xA82 323 bytes

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