Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4f7c3f5a838cc52…

MALICIOUS

PDF

4.4 KB
MD5: 5cdc871dea18413b4d5d234277e5762a SHA-1: 81d47ed02ec8a161caef6fafb6c1fd88af3c8c0f SHA-256: b4f7c3f5a838cc52f6a2e6c8173725d27afe3a785c7a147fdd4a5d4780f11ba7
76 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection confirms this as a malicious PDF exploit (Pdf.Exploit.Agent-36898). The embedded JavaScript is likely responsible for executing the exploit and delivering a secondary payload, although its specific actions are not detailed in the provided evidence.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36898 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36898
  • 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_obj0020_000.js
078d0e0b492ca4cd84e72173eeb1f49c45cfdd87bc8a4a847e70eee276ad1ba0		 pdf-javascript-stream PDF /JS object 20 at offset 0xDDD 236 bytes

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