Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b3f54e61a43dfdd…

MALICIOUS

PDF

16.2 KB Created: 2010-03-05 15:19:50 Authoring application: Laxiwoveja
MD5: 23ec4a4bfb6edc443a57f6744a79e392 SHA-1: b09a3ae527a8a280cda58394d38aa0b3e12e2be1 SHA-256: 4b3f54e61a43dfddd8015ea38780aa480ca27c2980022160da3193fac23396a7
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The critical ClamAV heuristic indicates this PDF is malicious, specifically identified as 'Pdf.Exploit.Agent-36066'. The presence of embedded JavaScript, detected by PDF_JAVASCRIPT and PDF_JS heuristics, strongly suggests that the file attempts to leverage a known PDF vulnerability to execute arbitrary code. The JavaScript stream is large, implying a complex payload, though its exact function cannot be determined without further analysis.

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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