Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfcfc0bfebe70dd7…

MALICIOUS

PDF

11.6 KB
MD5: 78b3cc34a0dc11852bf76078f751c792 SHA-1: 91df560f427a99db1dd15aa9d16937f766a8794d SHA-256: bfcfc0bfebe70dd78d087998f8dbb3c23107f996f6bbc57e6b2871cf8a1ab126
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by the 'PDF_JAVASCRIPT' and 'PDF_JS' heuristics. The ClamAV detection 'Pdf.Exploit.Agent-36177' strongly suggests this JavaScript is malicious and exploits a known vulnerability. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, which is a common technique for initial access.

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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