Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9cc9f87ddc3e603…

MALICIOUS

PDF

3.3 KB
MD5: d39fba31fbcc4865647344a06bafab67 SHA-1: 5ffb72468572f0e6bdac330e6289763a6ff312e7 SHA-256: b9cc9f87ddc3e6031b26d36eef342ffc152cdc11f524f014c67627a0b4dcded3
76 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection as Pdf.Exploit.Agent-36121 further confirms its malicious nature. The embedded JavaScript is likely responsible for exploiting a vulnerability within the PDF reader to execute arbitrary code, leading to the malicious verdict.

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
92baeff6f96ad9996faae05fe4cd0af83ae7c9a273fa0c77923ffedb90dba6e4		 pdf-javascript-stream PDF /JS object 7 at offset 0xA7B 353 bytes

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