Malicious PDF — malware analysis report

Static analysis result for SHA-256 9085cc05a75c012d…

MALICIOUS

PDF

12.2 KB
MD5: 7b693702e00ad1b2fb6bd4b8daaadc0d SHA-1: d49e0d192eb94d760354f54597ecd44c5c8c2c08 SHA-256: 9085cc05a75c012d9a2f885e40cb8f0e80557de5bec3b6cb9736c4188b8c77da
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. The presence of obfuscated JavaScript suggests the execution of malicious code, likely to download and run a secondary payload. The exact nature of the payload is not discernible from the provided evidence.

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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