Malicious PDF — malware analysis report

Static analysis result for SHA-256 c92c2ad5bb0f188f…

MALICIOUS

PDF

58.6 KB Created: 2006-02-16 15:03:51 -08:00 Authoring application: lice (via ubst)
MD5: 6732ee1c6ad0d9fca9478ab60983f2fc SHA-1: 3c7931b7abf4d52f3f84a0e46ae865be1f051f20 SHA-256: c92c2ad5bb0f188f1845c728d5f1c9f1fa21bfcf1fbaaed00c8289ab6585dbc4
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' strongly suggests it's a malicious PDF exploiting a known vulnerability. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for initial access.

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
b43b8fee73352dba65dd057e27e6a7fefcb6e4383012d5d91bc261f1d872560b		 pdf-javascript-stream PDF /JS object 76 at offset 0x955 50076 bytes

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