Malicious PDF — malware analysis report

Static analysis result for SHA-256 a947817eec4add57…

MALICIOUS

PDF

12.3 KB
MD5: 61fbb67fe05540dfb13834fc5cf7bc47 SHA-1: 39208c94f9ba23726e040bf82d239d1fd554e061 SHA-256: a947817eec4add571b3a6654ffaf4aba711c4192e7507c10bbfeedecd61e3609
78 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains obfuscated JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV also flagged it as Heuristics.PDF.ObfuscatedNameObject. The JavaScript is likely responsible for executing the malicious payload, although its exact function cannot be determined without further analysis. The differential parser failure suggests a high degree of obfuscation.

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.