Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d0068ffd696a060…

MALICIOUS

PDF

6.5 KB Authoring application: Tisilarehaue (via a5275Tibedegabala)
MD5: 02dcddda00bc598e27d10098f4c9f9cc SHA-1: 5563074f0340ea80ad24ff158aff39f0baf9a416 SHA-256: 5d0068ffd696a060e52c1b23346db02cdc770c03e522574162a2f57c0d998f76
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript, flagged by multiple heuristics including a critical ClamAV detection for 'Pdf.Exploit.Agent-36142'. The JavaScript code is heavily obfuscated but appears to be designed to download and execute a second-stage payload. The script attempts to deobfuscate a URL and execute it using app.eval().

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36142 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36142
  • 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_obj0010_000.js
d4dce4f95f7146e3b127d68edf45ceb045483a205d9e9a2a53d6e6b80d83b663		 pdf-javascript-stream PDF /JS object 10 at offset 0x1230 1728 bytes

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