Malicious PDF — malware analysis report

Static analysis result for SHA-256 494d7a6ae3d0337d…

MALICIOUS

PDF

45.0 KB
MD5: 86437cde175a84004878b2ed299d864b SHA-1: acbcb385b69d01110cdbc01fefb38fe569b718e6 SHA-256: 494d7a6ae3d0337d82a1840fd93c83da636f48a7f7e61b565553c0dd32eff3d4
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings related to PDF JavaScript actions and streams. ClamAV detection as 'Pdf.Exploit.Agent-36128' strongly suggests exploitation of a known PDF vulnerability. The embedded JavaScript is likely responsible for executing the malicious payload, potentially leading to further compromise.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36128 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36128
  • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0008_000.js
63f1b9accda4deeb9ec228530cccb0daa77ced7638c2651c3763ed7e14b61600		 pdf-javascript-stream PDF /JS object 8 at offset 0x1E7 45305 bytes
legacy_pdfkit_stage_000.js
5638a7b0ad813c1ce501f1e00a6699baca1c7a364b548bee51036789668608d3		 deobfuscated-js double percent-decoded annotation JavaScript at offset 0x1E7 33047 bytes

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