Malicious PDF — malware analysis report

Static analysis result for SHA-256 99e43e60bb0729ba…

MALICIOUS

PDF

3.2 KB
MD5: b9cb35fbf5fb69c3f0d367f0a928677a SHA-1: a98523b45463002b612912a6fd4aa264e4fd3432 SHA-256: 99e43e60bb0729baf0b60f8a2e28c06b960c8cad9369b731a4de856d9b61f44b
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

This PDF file was flagged as malicious by ClamAV with the signature Pdf.Exploit.Agent-36121. Static analysis revealed embedded JavaScript, indicating an attempt to exploit vulnerabilities within PDF viewers. The ML classifier also strongly indicated maliciousness. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
03498d6b0992baa7855c616f45cfe3f4f5ffbc786c6106c7f174d6f39bba8367		 pdf-javascript-stream PDF /JS object 7 at offset 0x9C6 455 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.