Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9663ca643c464e1…

MALICIOUS

PDF

45.0 KB
MD5: 24634fc56ff36ae2be1f6bfab78a7ccf SHA-1: 1a8d4f57b973ac2313abbb641396b02a7ae36c20 SHA-256: d9663ca643c464e1a2f466a31716e6c0ff853039dc60d3e206b4e9093c0d7227
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 also detected this file as Pdf.Exploit.Agent-36128, suggesting it exploits a known vulnerability. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, although the specific actions are not detailed in the provided evidence.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36128 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36128
  • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0008_000.js
4e5a077aa819e1eeb46d4f582d571e50680aabee4935de1ada5d6e3946eea7fb		 pdf-javascript-stream PDF /JS object 8 at offset 0x1E7 45305 bytes
legacy_pdfkit_stage_000.js
96982c2eab6b5b1dfa5ed7634fdfca3c422e5e32a4c8cf9d051998258b066d60		 deobfuscated-js double percent-decoded annotation JavaScript at offset 0x1E7 33047 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.