Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fd8a9ca8af30073…

MALICIOUS

PDF

47.3 KB Created: 2006-02-16 15:03:51 -08:00 Authoring application: Acrobat PDFMaker 7.0.5 for PowerPoint (via substr)
MD5: 6a5917d2821f6f0f434a521bc9feb744 SHA-1: f6e3e747f88bf83724e9cb826849241756500a84 SHA-256: 4fd8a9ca8af3007370685cff91da0625cfe023dfc9a830abb0edbac06667f9c6
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection as 'Pdf.Exploit.Dropped-94' confirms its malicious nature. The embedded JavaScript is likely responsible for executing an exploit within the PDF viewer, which in turn probably downloads and executes a secondary payload. The document body contains metadata and copyright information, but no direct user-facing lure.

Heuristics 3

  • ClamAV: Pdf.Exploit.Dropped-94 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-94
  • 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
5be4ff306739ba7e6094f9c83f1ab2815dfc54001e49bf4e4c79df94d9000be6		 pdf-javascript-stream PDF /JS object 76 at offset 0x99C 45657 bytes

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