Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8a8a08b6c6cb9e1…

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: 4caf6cfb94fc29b9beda34cba04e62ac SHA-1: 4c9cb96ebbda30f4c9493baeff0d0f51d08f606d SHA-256: b8a8a08b6c6cb9e1f18ef4896eefd9ca964c8338dbac927d292b4fa80016f4cc
76 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV with the signature Pdf.Exploit.Dropped-94. Static analysis revealed embedded JavaScript, indicating an attempt to exploit a vulnerability within the PDF reader. The JavaScript action and embedded JS stream are strong indicators of malicious intent, likely to download and execute a secondary payload. The file's metadata suggests it was created using Acrobat PDFMaker, a common tool for generating documents that can contain malicious content.

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
56b94bf21882ebbe0536807f29461cfd3a3df8a65d8995853840707d5ef2df6d
pdf-javascript-stream PDF /JS object 76 at offset 0x99C 45672 bytes