Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2d0f404320ca28d…

MALICIOUS

PDF

16.7 KB Created: 2010-03-10 18:13:05 Authoring application: Cwafodamokfeufo
MD5: f5271da68094650ebd0a2f118104cbe4 SHA-1: 44d62ac8898bb91d4e79c3c6cf71fb63929239bf SHA-256: f2d0f404320ca28d219f01416dc5421c4bf6cce4382ff173b79cc3a33f975d43
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The PDF file was flagged as malicious by multiple heuristics, including a critical ClamAV detection identifying it as 'Pdf.Dropper.Agent-7323327-0'. The presence of embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS firings, suggests that the script is likely responsible for the malicious functionality, such as downloading and executing a second-stage payload. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7323327-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7323327-0
  • 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_obj0024_000.js
d4154f8d42f087e077da148c704a3763ea51fe97cb9998052625917058fb0f91		 pdf-javascript-stream PDF /JS object 24 at offset 0x33A2 1101338 bytes

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