Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca2ba293c8e40fdd…

MALICIOUS

PDF

12.6 KB
MD5: f9099f9add57d5f79855c91bb04c8173 SHA-1: a0a4b36b4dc9f8774692e34ed2b26fbf548cda28 SHA-256: ca2ba293c8e40fddf8d25cde7a060e4ce1f49300d54f2ded1d303aca8ece10b5
106 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ClamAV with the signature Pdf.Exploit.Agent-36723. Static analysis revealed embedded JavaScript, indicating an attempt to exploit vulnerabilities within the PDF reader. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be leveraging a PDF exploit to execute embedded JavaScript.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36723 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36723
  • 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
cd49fbd89c419f7d646f68b360f695fa9543bb160219b53193ae542b10dc93bb		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11838 bytes

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