Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eaf2fa91de3af41…

MALICIOUS

PDF

3.2 KB
MD5: 0e3d465aaa65aea0a1e4b444fe1869d3 SHA-1: ce41aae353331b084ba618076eb908b5beddb1fd SHA-256: 3eaf2fa91de3af41da76b631ba980df9c52c320e2de04c01a8d366ef0f87bcab
106 Risk Score

Malware Insights

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

The file is a PDF containing embedded JavaScript, as indicated by multiple heuristic firings and ClamAV detection (Pdf.Exploit.Agent-36121). The ML classifier also strongly flagged this PDF as malicious. The embedded JavaScript is likely responsible for executing the exploit, leading to the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
f654b1b064fb706957df9b124771f870e94ae4f94d79066119e91a6924863ebb		 pdf-javascript-stream PDF /JS object 7 at offset 0x9C9 443 bytes

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