PDF malware analysis — malicious · 42ad28510f4756a1

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: e454688cd6c955c34d7301873513eafe SHA-1: 9c88ea4a8a3921aaf925d118a04c669256b9c239 SHA-256: 42ad28510f4756a129ba4f67673243359b3cf331083d810a1ac0e9a2e7b02999

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is identified as a malicious PDF by ClamAV and a machine learning classifier. Heuristics indicate the presence of JavaScript actions and embedded JS streams, suggesting an attempt to execute malicious code. The ML classifier's high confidence score further supports its malicious nature. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, as indicated by the ClamAV detection name 'Pdf.Exploit.Dropped-94'.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.

Filename	Kind	Source	Size
`javascript_obj0076_000.js` `cfe4b4e0b8df0a818c6668bf4a2edccf359ba622e6de9916d34f0020d06e7f22`	pdf-javascript-stream	PDF /JS object 76 at offset 0x99C	45632 bytes

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