Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9b4fe5be5f92594…

MALICIOUS

PDF

3.3 KB
MD5: 8b6d5c2aca171d5d246166b33d2981bc SHA-1: d18e82d16e103503d44b2e41ab6df75e631f1ca7 SHA-256: f9b4fe5be5f92594c443c248ba45022e4da2e8dbe6f3d616b898e6aae995dde9
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/Shell Script Execution: JavaScript Execution

The PDF file contains embedded JavaScript, indicated by the 'PDF_JAVASCRIPT' and 'PDF_JS' heuristics. ClamAV detection as 'Pdf.Exploit.Agent-36121' strongly suggests this is a known exploit. The embedded JavaScript is the likely mechanism for delivering the exploit payload.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
  • 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_obj0007_000.js
c12b1b7871067b436e0287c43f711e8a3936fa40311dbf8de2d2c9d9e2a037be		 pdf-javascript-stream PDF /JS object 7 at offset 0xA86 299 bytes

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