Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe1bd5f63df289b7…

MALICIOUS

PDF

16.2 KB Created: 2010-03-05 15:19:50 Authoring application: Laxiwoveja
MD5: ccf16f2a1d8e29bc85af6353eb1654f6 SHA-1: 8d11ad803c9415341cd4450ae5ecb62854f2604c SHA-256: fe1bd5f63df289b72d484cd3fce2daadd98262b8a582112ad905603d5290e0a2
76 Risk Score

Malware Insights

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

The critical ClamAV heuristic indicates the file is a known PDF exploit, specifically 'Pdf.Exploit.Agent-36066'. The presence of embedded JavaScript streams and JavaScript actions further supports this, suggesting the PDF is designed to leverage a vulnerability to execute malicious code. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, a common technique for initial access.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36066 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36066
  • 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_obj0022_000.js
22e7b9b95199cc294a88baec03e968aa698abb89fdbf202e98b946c7b2639771
pdf-javascript-stream PDF /JS object 22 at offset 0x30AF 971255 bytes