Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4d0aedb941032f0…

MALICIOUS

PDF

12.5 KB
MD5: 6eecb828d42d58ae1d60eb1d9f13a7ba SHA-1: ab773c40ca7823df7fbb3798893b75c84fc4c8bd SHA-256: a4d0aedb941032f06c54d91a08c3696586c1a0702093fcbdbef07dff8b40976a
136 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings related to PDF and JavaScript. ClamAV detections 'Pdf.Exploit.Agent-36365' and 'Pdf.Exploit.Agent-36364' strongly suggest the presence of an exploit. The embedded JavaScript is the likely mechanism for delivering the exploit, aiming to download and execute a malicious payload.

Heuristics 4

  • ClamAV: Pdf.Exploit.Agent-36365 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36365
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • 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_obj0076_000.js
1b816060af715d37bb71d4fdc6d3f36493d3b5279b3bc58148c6064982ccea37		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11705 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36364
Obfuscation or payload: unlikely

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