Malicious PDF — malware analysis report

Static analysis result for SHA-256 ead8456f377be0d4…

MALICIOUS

PDF

12.5 KB
MD5: 5dd332a1cdd21e539ac6c623170514fa SHA-1: 3b4b2bed94d4c36bc412a1ae82732ecec5981a5b SHA-256: ead8456f377be0d4dad1cb1c5e1fde1612e747cbe10ebfd1cbc35939f32f6ba2
76 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, indicated by heuristic firings for PDF_JAVASCRIPT and PDF_JS. ClamAV detection as Pdf.Exploit.Agent-36722 further confirms its malicious nature. The embedded JavaScript is likely designed to exploit a vulnerability within the PDF reader to download and execute a secondary payload, a common technique for initial access.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36722 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36722
  • 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_obj0076_000.js
ded692f3fcf430bc9fc745dc6b64058286a9fa6645f75818ae1e83f1aa8a1150		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11735 bytes

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