Malicious PDF — malware analysis report

Static analysis result for SHA-256 d84199b491e0441b…

MALICIOUS

PDF

6.6 KB Authoring application: Tisilarehaue (via f8d65Tibedegabala)
MD5: fc0c0ff97989fe10d7a80737dc4b9f3f SHA-1: 59b3bcc0c6fa04a4114b46b699e96ed90168420b SHA-256: d84199b491e0441b06e3508284b74a8d181dddae8a077fcff6bacf3c5e29b43c
106 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ML_NYX_PDF_MALICIOUS and CLAMAV_DETECTION heuristics confirm its malicious nature, with ClamAV identifying it as Pdf.Exploit.Agent-36142. The embedded JavaScript is likely responsible for executing the exploit, leading to the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36142 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36142
  • 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_obj0010_000.js
d4dce4f95f7146e3b127d68edf45ceb045483a205d9e9a2a53d6e6b80d83b663
pdf-javascript-stream PDF /JS object 10 at offset 0x1230 1728 bytes