Malicious PDF — malware analysis report

Static analysis result for SHA-256 25f64520bdcceffe…

MALICIOUS

PDF

12.4 KB
MD5: 850bbd8074b19990601c71ed001d2bec SHA-1: 1578c23b919a69d594d4ba9131fc3d493b2e5657 SHA-256: 25f64520bdcceffe906f834bc37def78a36dae5f7dd19c8ba93b1bad016e03ca
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file was detected as malicious by ClamAV with the signature Win.Trojan.Agent-36281. It contains embedded JavaScript, indicated by heuristic firings for PDF_JAVASCRIPT and PDF_JS. This JavaScript is likely designed to download and execute a second-stage payload, contributing to the overall malicious nature of the document.

Heuristics 3

  • ClamAV: Win.Trojan.Agent-36281 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Agent-36281
  • 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_obj0076_000.js
d3ae21eb973add1ac52f983a336ec7d49c03f70a4a8b4a608d0f0baa1d92658a		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11564 bytes

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