Malicious PDF — malware analysis report

Static analysis result for SHA-256 f578dc7833c64f3c…

MALICIOUS

PDF

887 B
MD5: d2a9ead37da5212462cf0f9582d89ddf SHA-1: e43ac70d5b8dd323811bad3b9b4263973320330a SHA-256: f578dc7833c64f3c2150633ede3c6cd2cd5195c884c48e719c942939e31f852c
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV also flagged it as Heuristics.PDF.ObfuscatedNameObject, suggesting obfuscation techniques are in use. The embedded JavaScript is likely intended to perform malicious actions, such as downloading a second-stage payload or exploiting a vulnerability, though its exact function is obscured.

Heuristics 3

  • ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
  • 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_obj0006_000.js
c1580bd744393c3ad9eadaf9d04326815d2ca7a44a21e361430546268a67bbd4		 pdf-javascript-stream PDF /JS object 6 at offset 0x1AD 60 bytes

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