Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f8e7c744c819af0…

MALICIOUS

PDF

16.2 KB Created: 2010-03-05 15:19:50 Authoring application: Laxiwoveja
MD5: 3a4164b74eb06a9faba63af0adc7f5bc SHA-1: 9bada85ba01a52b85e56b17d8463ad4841004293 SHA-256: 4f8e7c744c819af0ab304410bc60c530faeb11941617b467290548c03df43735
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript T1204.002 Malicious JavaScript

The critical ClamAV heuristic 'Pdf.Exploit.Agent-36066' indicates a known PDF exploit. Additionally, heuristics for PDF JavaScript actions and embedded JS streams confirm the presence of executable code within the document. The embedded JavaScript, although large, is the primary mechanism for exploitation, likely downloading and executing a second-stage payload.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36066 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36066
  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0022_000.js
22e7b9b95199cc294a88baec03e968aa698abb89fdbf202e98b946c7b2639771		 pdf-javascript-stream PDF /JS object 22 at offset 0x30AF 971255 bytes

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