Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b766a07da734985…

MALICIOUS

PDF

33.1 KB Created: 2012-08-07 10:10:40 +04:00 Authoring application: Adobe Acrobat 7.0 (via Adobe Acrobat 7.0 Image Conversion Plug-in)
MD5: 6366ab3254a2bf64199c143fbf4997b2 SHA-1: 9ee58a3328863093777f26b2c4811e43a67f2306 SHA-256: 1b766a07da734985e25f23163217a6062372d58e4e8d0e8048ceb305bd86dd1f
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The ClamAV detection 'Pdf.Dropper.Agent-7235497-0' strongly suggests malicious intent. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, a common dropper behavior. No specific family could be identified from the available evidence.

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7235497-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7235497-0
  • 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
dd02245bc1824e1d0e84a8350c85b274981555683706a463a6fe9b9169790162		 pdf-javascript-stream PDF /JS object 106 at offset 0x7F15 3219 bytes

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