Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb0504f4b1f8759c…

MALICIOUS

PDF

3.3 KB
MD5: 6a89c74f65900b4bf4926c3188cb2224 SHA-1: 63d668c859d8f932b465d5efeb3608447e0f8e50 SHA-256: fb0504f4b1f8759cb319f812a3c303e7e428fee47b7920f6177fce386f40c0ad
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection as 'Pdf.Exploit.Agent-36121' confirms its malicious nature. The embedded JavaScript is likely responsible for exploiting a vulnerability within the PDF reader to execute malicious code, potentially downloading a second-stage payload.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0007_000.js
4820421549218bc431339a1cacdae419d2e6ec941fcaa5b8af133a019b17e47d		 pdf-javascript-stream PDF /JS object 7 at offset 0xA85 321 bytes

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