Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e17b51dfc1d052…

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: 532e341e5fcc4d1f4a640be837b05c54 SHA-1: c4725eebc6c5afc0318002047a4aa62cb22f1ec4 SHA-256: 34e17b51dfc1d05211b9d41de130d932ad1a8ec8797c18aea31747d2add8309d
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript

The PDF contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. ClamAV detection as 'Pdf.Exploit.Agent-36776' confirms its malicious nature. The embedded JavaScript is likely responsible for executing the exploit and delivering a second-stage payload, though the specific actions are not detailed in the provided 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
c0a5ba1a1f4af51d44213e981685ba8ff52f2840ad35782debb816fc0e721888		 pdf-javascript-stream PDF /JS object 24 at offset 0x2617 11310 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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