Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5182de8b18f9b7d…

MALICIOUS

PDF

10.4 KB
MD5: ea09270cba92455457b822aaa8ed6141 SHA-1: a884f8a3b4e27009efeaeda2980672be67611fdd SHA-256: d5182de8b18f9b7d1590164453e6d1c4bd4cab9c653c7f95f337a092b75754a8
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The file is a PDF containing embedded JavaScript, as indicated by multiple heuristic firings and the presence of a javascript_obj0018_000.js artifact. ClamAV detection as 'Pdf.Exploit.Agent-23999' strongly suggests exploitation of a known PDF vulnerability. The ML classifier also flagged the PDF with high confidence. The embedded JavaScript is the likely mechanism for delivering a secondary payload, although its specific actions are not detailed in the provided evidence.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-23999 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-23999
  • 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_obj0018_000.js
18849879bfcc18ec9de5e54eb51ede905ca1ac778d85a7e125b6c1152273d386		 pdf-javascript-stream PDF /JS object 18 at offset 0x2367 2174 bytes

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