Malicious PDF — malware analysis report

Static analysis result for SHA-256 9767d858affe7fa5…

MALICIOUS

PDF

3.2 KB
MD5: 8a75d785f1b7e49f97b6107ec01317bf SHA-1: 5a7b808a7bbddc67e4ee8ed1badcc24676a58da7 SHA-256: 9767d858affe7fa599ff00ae4b392313d10c5667666bd5b554c77f08ee83b63e
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection as 'Pdf.Exploit.Agent-36121' strongly suggests this is a malicious PDF exploiting a known vulnerability. The embedded JavaScript is likely responsible for the malicious behavior, such as downloading a second-stage payload or exploiting a vulnerability within the PDF reader.

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
e7ca38c6f374ad58fc2ffdd715cf44dbf63a2674e7fa293aedbee2d6f7646183		 pdf-javascript-stream PDF /JS object 7 at offset 0x9C5 448 bytes

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