Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d125da872d3ef44…

MALICIOUS

PDF

45.0 KB
MD5: 1bf70443da5719d2756fde96cbabefec SHA-1: 4460416b6ccb97011f3d782c9572ca998a6ba779 SHA-256: 4d125da872d3ef44254ecc02fdc73def04ca8f926af44224b6617719f0d61731
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings and the presence of extracted JS artifacts. ClamAV detection as 'Pdf.Exploit.Agent-36128' strongly suggests exploitation of a known PDF vulnerability. The embedded JavaScript is likely responsible for executing a malicious payload, although its specific actions are not detailed in the provided evidence. The document body content is not indicative of a specific lure.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36128 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36128
  • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0008_000.js
f4a88505f3fde5b3c4885b67c10b89f089e1530a21528af47cfb5f194a38f759		 pdf-javascript-stream PDF /JS object 8 at offset 0x1E7 45305 bytes
legacy_pdfkit_stage_000.js
3a08571302303e0bc40c9d38429d6a4cd729a6b6df1aed1d2e6533b2b42d18fd		 deobfuscated-js double percent-decoded annotation JavaScript at offset 0x1E7 33047 bytes

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