Malicious PDF — malware analysis report

Static analysis result for SHA-256 3497d42cf3e95c0b…

MALICIOUS

PDF

16.0 KB
MD5: 6e14a47ffe6100788c7c6edae24da20f SHA-1: 10a4d1c65f754da6eedb58fad1963df2922fb3a0 SHA-256: 3497d42cf3e95c0ba1023b4e78e13bd0ef161cc22beec1a5c6cca9f414421fbb
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 exploitation of a known PDF vulnerability. The embedded JavaScript is the likely mechanism for delivering a secondary stage, such as a downloader or backdoor.

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
4b8790357b9c6087e3d794ba0fc090be9a526c25568e0a46ea98835c6a3e4f0a		 pdf-javascript-stream PDF /JS object 76 at offset 0x2D4 15490 bytes

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