Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c7809ae2871c5d0…

MALICIOUS

PDF

3.3 KB
MD5: 2aa78d2c08e9f855cfd4278cbe45a8f4 SHA-1: 6ae7916d2333d42afe6ddb66ee1cbb180b4db66a SHA-256: 7c7809ae2871c5d0ae74d7748998fed08cf15e80bf030fd8fdef8b12d469f886
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains embedded JavaScript that is triggered by the document's actions. The script decodes a string from the PDF's title metadata and then executes it. This indicates an attempt to exploit a vulnerability within the PDF viewer to achieve arbitrary code execution, likely to download and run a secondary payload.

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
03e6ef872450c4881495bf9d3d20490f0592d953f49ca0bf852fa7a294be02bd		 pdf-javascript-stream PDF /JS object 7 at offset 0xA88 335 bytes

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