PDF malware analysis — malicious · 4c4897974327fef3

MALICIOUS

PDF

47.2 KB Created: 2006-02-16 15:03:51 -08:00 Authoring application: Acrobat PDFMaker 7.0.5 for PowerPoint (via substr)

MD5: a06790e39350a4805293c538e445e5da SHA-1: 7dc288cbc946a1dbae8e8433af569fd81f327a29 SHA-256: 4c4897974327fef39ec37b5c64cd47aa2581ee2bc3ce2c004cd55b350b3166d1

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, specifically as Pdf.Exploit.Dropped-94. Static analysis detected embedded JavaScript, indicating an attempt to exploit a PDF vulnerability. The large size of the embedded JavaScript stream (45598 bytes) suggests it is likely responsible for downloading and executing a secondary payload.

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` `56038e39521f0edb17b5f7ecd05193a572c442afdc0610c57ece6c4101f9d1c5`	pdf-javascript-stream	PDF /JS object 76 at offset 0x99C	45598 bytes

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