Malicious PDF — malware analysis report

Static analysis result for SHA-256 591848a4e683c51b…

MALICIOUS

PDF

16.2 KB
MD5: 748fcb0076463338f76b98650b82156f SHA-1: 0801fb7531ac022c267519838fd6645fea79bf59 SHA-256: 591848a4e683c51bdc6512b5361555c0d471b3d4a1b24e5cb41e10497c288bd4
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 JavaScript object. ClamAV detection as 'Pdf.Exploit.Agent-36324' strongly suggests exploitation of a known vulnerability within the PDF structure. 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
669f32f9d52f509a1c947c994f26b8dab5706a5917d1099289b4f30f3bfaaebe		 pdf-javascript-stream PDF /JS object 76 at offset 0x2D4 15660 bytes

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