Malicious PDF — malware analysis report

Static analysis result for SHA-256 dea1fd1ce20f46fd…

MALICIOUS

PDF

12.0 KB
MD5: 2bbf4ab0aa8bd87cc8adb08d632f1e24 SHA-1: 7009fc935df20facec0b3d2f3a317ee2d6b3e031 SHA-256: dea1fd1ce20f46fd6a1123824e322afb74a58566457a6eee6603b7d91764a64d
78 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded and obfuscated JavaScript, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV also flagged the file as malicious due to obfuscated objects. The presence of JavaScript suggests an attempt to execute malicious code, likely to download and run a secondary payload. The specific obfuscation technique used by ClamAV (Heuristics.PDF.ObfuscatedNameObject) points to a common method for evading static analysis.

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.

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