Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ddf02e9bda3f4fb…

MALICIOUS

PDF

11.9 KB
MD5: be67be35497358c86c1783965e0fcd46 SHA-1: 29b967d392f10732d98167523a1e26a027aee3fb SHA-256: 6ddf02e9bda3f4fb3acdcae32fdfa62733ada1cdcdccf116a3870fa737570fb3
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 that is obfuscated using character code manipulation. The script decodes a string which appears to be a URL, 'http://evil.com/payload.exe', and then executes it. This indicates the PDF is designed to exploit a vulnerability and download a second-stage payload.

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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