Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a4e3b811fae26d0…

MALICIOUS

PDF

53.7 KB
MD5: 00bdd9c899975516d3b244fbd55ed54a SHA-1: 9c13f1b94a5bfb68013c835bb9274579ded16b11 SHA-256: 9a4e3b811fae26d058022c6904ade87d1ad30f3274876035f2fa35f3741b7eba
106 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and a machine learning classifier, indicating a high likelihood of exploit. Embedded JavaScript, identified by heuristics, is likely responsible for the malicious behavior, potentially downloading and executing a secondary payload. The specific exploit and family are not immediately clear from the provided heuristics, hence the unknown family designation.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36395 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36395
  • 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
03f600bcf8e3d2a38cde1a8b762a788cdb551ff15b1b6cd23919166ac4e27253
pdf-javascript-stream PDF /JS object 76 at offset 0x2C2 46310 bytes