Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fbbdf3dfc74ff2a…

MALICIOUS

PDF

3.3 KB
MD5: 74b45ab91c6ffcd51ad91d3cae4e41e4 SHA-1: 21ed688729df17d1c07333934d44c1c47b82527f SHA-256: 9fbbdf3dfc74ff2a4e2814129f74a0ccf64b2d04c101217b032d1e206f4fd51e
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection further confirms its malicious nature, identifying it as Pdf.Exploit.Agent-36121. The JavaScript is likely used to exploit a vulnerability within the PDF reader to execute arbitrary code, a common technique for delivering further malware.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
  • 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_obj0007_000.js
923b9c8be3d61edead7e500426a790490e195a71192e3bb7e01a906a7b7aadd8		 pdf-javascript-stream PDF /JS object 7 at offset 0xA88 301 bytes

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