Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ccc0c5e92b7c133…

MALICIOUS

PDF

11.5 KB
MD5: 2912aec102d6289fd7e63226b1e92e18 SHA-1: a601e4bfc9d1176165dea4f722f010316486947d SHA-256: 5ccc0c5e92b7c133da400314e2f7f282c42871886993e08adb943fdbbf86d807
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript which, when executed, decodes a string and then uses it to download and execute a second-stage payload. The decoded URL is 'http://evil.com/payload.exe'. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36177 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36177
  • 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
a7e6203b0e8f812879ed8382ccbb3900ad81b5a92faf27692f51de6e8c96c13a		 pdf-javascript-stream PDF /JS object 7 at offset 0x1A6 569 bytes

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