Malicious PDF — malware analysis report

Static analysis result for SHA-256 26ee317032152f36…

MALICIOUS

PDF

251.5 KB Created: 2009-12-21 16:55:35 +08:00 Authoring application: Acrobat PDFMaker 7.0ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿcer(Acrobat Distiller 7.0 (Windows) (via Acrobat Distiller 7.0 (Windows))
MD5: ea3f171335fc8d8abee0e202f61007fe SHA-1: 9c050773b123d1de8623e2d564f42874354f1810 SHA-256: 26ee317032152f364f6178b4d85d53d76446d17836b014526664ca6fa3f75afd
106 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Exploit.Agent-14159 and a machine learning classifier indicated a high probability of maliciousness. Heuristics indicate the presence of embedded JavaScript, which is often used to exploit vulnerabilities or download further malicious content. No document body text was available for analysis, but the presence of JavaScript and the ClamAV detection strongly suggest an exploit attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

Heuristics 4

  • ClamAV: Pdf.Exploit.Agent-14159 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-14159
  • 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/pdf/1.3/
    • http://ns.adobe.com/pdfx/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/photoshop/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0043_000.js
6a4feff50242ca48bccb7b8303874c63d44c492cea43499d20ce94d354dc031d		 pdf-javascript-stream PDF /JS object 43 at offset 0x2430 2172 bytes

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