Malicious PDF / .INF — malware analysis report

Static analysis result for SHA-256 eeba3d84eb2d2b10…

MALICIOUS

PDF / .INF

12.3 KB
MD5: 82b3a108aaa731919d7dfc425fb6c34d SHA-1: c3d37d51a4d627b8d07f84613faaebc31feac64f SHA-256: eeba3d84eb2d2b10ab5c30dc8e57d00505df828be145578ee40beb151605f2c8
78 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains obfuscated JavaScript, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV also flagged it with Heuristics.PDF.ObfuscatedNameObject, confirming its malicious nature. The JavaScript is likely responsible for executing the malicious payload, although its exact function cannot be determined due to obfuscation. The attack pattern involves leveraging JavaScript within a PDF document.

Heuristics 4

  • ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
  • 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.
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.