Malicious PDF — malware analysis report

Static analysis result for SHA-256 368f2c5faafa96fc…

MALICIOUS

PDF

13.0 KB Created: 2011-11-02 19:21:39 +04:00 Authoring application: Adobe Acrobat 10.0 (via Acrobat Web Capture 10.0)
MD5: 43ce7ab211853b6ced7321424ac93058 SHA-1: 5703a3832fe26416f468447caed0e15a90e700e7 SHA-256: 368f2c5faafa96fce7ca6fafbe4fc62ca797b4840d4162a8da03dc9f50b8b456
76 Risk Score

Malware Insights

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

The critical ClamAV heuristic indicates this PDF is recognized as a known exploit, specifically 'Pdf.Exploit.Agent-36776'. The presence of embedded JavaScript, flagged by two heuristics, strongly suggests the exploit leverages this script to perform malicious actions. While the exact script functionality is not detailed, it is common for such embedded JavaScript in PDFs to download and execute a secondary payload. No specific family could be identified from the available evidence.

Heuristics 4

  • ClamAV: Pdf.Exploit.Agent-36776 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36776
  • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0024_000.js
777fd47057387b695cc3c17c8f535dc4a1850bb301d1af4c051af139b0212a5e		 pdf-javascript-stream PDF /JS object 24 at offset 0x2617 11230 bytes
icc_00_off000018a6.icc
653b586c4707574ffcd648ba35494daed2c76ceafcf4c07d315ed961b1dc347f		 pdf-icc-profile PDF ICC profile at offset 0x18A6 408 bytes
icc_01_off00001a00.icc
2b3aa1645779a9e634744faf9b01e9102b0c9b88fd6deced7934df86b949af7e		 pdf-icc-profile PDF ICC profile at offset 0x1A00 3144 bytes

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