Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e4b2da4ce4b60c4…

MALICIOUS

PDF

9.7 KB
MD5: 1dbbabfcf0db9b4261bbf277444dbdff SHA-1: 5324b968f2c73ee5848bd2b0bd60d07c1a369cf9 SHA-256: 3e4b2da4ce4b60c4f6ee4e3e2ef25d3cd71696789fe303d6485166b7843f0e0f
106 Risk Score

Malware Insights

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

The PDF document was flagged by ClamAV as 'Pdf.Dropper.Agent-7252685-0' and a machine learning classifier indicated a high probability of maliciousness. Analysis revealed embedded JavaScript, which is a common technique for executing arbitrary code within PDF files. This script is likely responsible for downloading and executing a second-stage payload, a typical dropper behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7252685-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7252685-0
  • 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_obj0069_000.js
a0cf0d906fe7d2758ce4cb119155ca64b25b615375d9ff425d614cc2aa66b942		 pdf-javascript-stream PDF /JS object 69 at offset 0x1BE 18560 bytes

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