Malicious PDF — malware analysis report

Static analysis result for SHA-256 4242f0305e05f5eb…

MALICIOUS

PDF

47.2 KB Created: 2006-02-16 15:03:51 -08:00 Authoring application: Acrobat PDFMaker 7.0.5 for PowerPoint (via substr)
MD5: 6663caaf0e516e8119d403a85e84b92f SHA-1: b0339d1d06c3a96d6fa8be4372795185aa8eb619 SHA-256: 4242f0305e05f5eb78422f40a2eee24428ed830ec34161e6880fd99ae08645f0
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file was detected as malicious by ClamAV with the signature Pdf.Exploit.Dropped-94. Static analysis revealed embedded JavaScript, indicating an attempt to exploit vulnerabilities within the PDF reader. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload.

Heuristics 3

  • ClamAV: Pdf.Exploit.Dropped-94 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-94
  • 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
0ed6f3b512e0e0665d18265382e3a146189fe4d31474adb71ec667fa5822d7b5		 pdf-javascript-stream PDF /JS object 76 at offset 0x99C 45593 bytes

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