Malicious PDF — malware analysis report

Static analysis result for SHA-256 2640ecd7f1a89617…

MALICIOUS

PDF

8.2 KB
MD5: 930d70a1999b94789ffecc23eca18796 SHA-1: 8f7b9c559d31de920400ea9b5f9d8be7c429fc53 SHA-256: 2640ecd7f1a89617853e433c9a41b1489ab3333ae3793952a4f64febc044c405
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'. While the exact script functionality is not fully detailed, the presence of obfuscated JavaScript in a PDF commonly indicates an attempt to download and execute a secondary payload or exploit a vulnerability.

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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