Malicious PDF — malware analysis report

Static analysis result for SHA-256 11ed6a9098c92148…

MALICIOUS

PDF

16.2 KB Created: 2010-03-05 15:19:50 Authoring application: Laxiwoveja
MD5: 8a15a5756a8339b7bfb3fcb8e4914939 SHA-1: fc73cc32ecdbd666cd5674dab4f3808645a55395 SHA-256: 11ed6a9098c921486dd5947e003f3ee3c0fdd618359e083a75bd6a512233989c
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, indicated by heuristic firings and the presence of a javascript_obj0022_000.js artifact. ML and ClamAV classifiers strongly indicate maliciousness, with ClamAV identifying it as Pdf.Exploit.Agent-36066. The embedded JavaScript is likely responsible for executing exploits within the PDF, leading to client execution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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

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