Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae7ab7aaf2be4b60…

MALICIOUS

PDF

13.1 KB Created: 2011-11-02 19:21:39 +04:00 Authoring application: Adobe Acrobat 10.0 (via Acrobat Web Capture 10.0)
MD5: 424e9f33bb51a898d7cc1f69e94969f8 SHA-1: 6c936fcf52ebd7d1eb50ecdd59686fe9d102fe68 SHA-256: ae7ab7aaf2be4b60d9fa0ca0352ea922553ffa9d66e3a9bc6f35d465696d700b
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript T1559.001 Component Object Model

The critical ClamAV heuristic indicates this PDF is malicious, specifically identified as Pdf.Exploit.Agent-36776. The presence of embedded JavaScript actions and streams strongly suggests an exploit is being used to execute code. The JavaScript is likely responsible for the malicious behavior, potentially downloading a second-stage payload or performing other harmful actions.

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
1d3c7220917a155ef9e7bbc79e366c65fc4ddff6e83d531143dbd35080a48074		 pdf-javascript-stream PDF /JS object 24 at offset 0x2617 11258 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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