Malicious PDF — malware analysis report

Static analysis result for SHA-256 94b66c6595f69b3c…

MALICIOUS

PDF

40.1 KB Created: 2012-08-21 08:56:32 +04:00 Authoring application: Adobe Acrobat 7.0 (via Adobe Acrobat 7.0 Image Conversion Plug-in)
MD5: 44ae8a76bfad1bafd224c477fd3fbc48 SHA-1: 9113b727ea76cb550fad4075df1e55a2819c53b2 SHA-256: 94b66c6595f69b3c6055b3fece5033f47c78fb076be11b850f384d54a6658fb1
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The PDF file was detected by ClamAV as 'Pdf.Dropper.Agent-7283988-0', indicating it functions as a dropper. Static analysis revealed embedded JavaScript, a common technique for executing malicious code within PDF documents. The JavaScript action and embedded JS stream heuristics confirm the presence and potential execution of this script. The primary function of the script is likely to download and execute a second-stage payload, although the specific URL or execution method is not directly extractable from the provided evidence.

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7283988-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7283988-0
  • 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.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/pdf/1.3/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0106_000.js
5639b7473e86901c6eebea0c662e3f1379d03ae7664d985f6cbc25c3e99e6106		 pdf-javascript-stream PDF /JS object 106 at offset 0x9B9E 2204 bytes

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