Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5d62d24e333ef13…

MALICIOUS

PDF

16.0 KB
MD5: 4b40437f31d7b3adab338354c07e768e SHA-1: 0fa3844cd3b90032629124987a0531795288471d SHA-256: a5d62d24e333ef13677ac059cd9c63dc9df9778810bda6f215874832960f4a77
76 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings and the presence of a large JS stream. ClamAV detection as 'Pdf.Exploit.Agent-36324' strongly suggests it exploits a known vulnerability to execute arbitrary code. The embedded JavaScript is the likely mechanism for delivering a secondary stage payload.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36324 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36324
  • 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
01fe65adb6dc818b7220e0f0428e4b2cee3b1d4f35675d7df601d4c9e9c59d6d		 pdf-javascript-stream PDF /JS object 76 at offset 0x2D4 15470 bytes

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