Malicious PDF — malware analysis report

Static analysis result for SHA-256 567184b1ca487d33…

MALICIOUS

PDF

3.2 KB
MD5: ffb07c19e38fcb340cd49d50f338e36e SHA-1: f0c2adc0d713921641568980ba0281b18f7eb26f SHA-256: 567184b1ca487d33f846e7a1034d74fd979ef053b37263845b993f948b74c268
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-36121' and a high ML score indicating maliciousness. An embedded JavaScript stream was also identified, suggesting the PDF is designed to execute malicious code. The ML classifier's high confidence score and the specific ClamAV detection strongly indicate this PDF is a malicious exploit delivery mechanism.

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
3c556a9acab2a5c5fa1a2538c1c7e62faa3cb574d13f1b26e42907c0f248ebc5		 pdf-javascript-stream PDF /JS object 7 at offset 0x9C9 476 bytes

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