Malicious PDF — malware analysis report

Static analysis result for SHA-256 88d4338e19cd8200…

MALICIOUS

PDF

3.2 KB
MD5: abb6c07a0a93c112518955709f607706 SHA-1: c4d3115c40259e87a25eeb689719a1be476a1fed SHA-256: 88d4338e19cd8200507a7cf9e7dfd1faddc21f4ddf19d56ba604fb07d209848d
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The file is a PDF containing embedded JavaScript, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV also detected it as Pdf.Exploit.Agent-36121. The embedded JavaScript is likely responsible for exploiting a vulnerability within the PDF reader to execute malicious code. However, the specific functionality of the JavaScript could not be determined due to obfuscation or truncation.

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
745a9fc9515ba226974feb509a9dceae7de9c57ee7dfcf57f50418a8b32f5784		 pdf-javascript-stream PDF /JS object 7 at offset 0x9C6 453 bytes

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