PDF malware analysis — malicious · a887155bbbcd7a67

MALICIOUS

PDF

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

MD5: bb6761958d8e143512431324f4a73387 SHA-1: 4fcf972afb1661aeea0a325be43025f9037fd23f SHA-256: a887155bbbcd7a6762d28b1f8186a8e3cc35a0efda273b612832a3a0f26f822c

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file was flagged as malicious by ML classifiers and ClamAV with the signature Pdf.Exploit.Dropped-94. Static analysis revealed embedded JavaScript, indicating an attempt to exploit a PDF vulnerability. The JavaScript is likely responsible for downloading and executing a second-stage payload, a common technique for malware delivery.

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` `730cb6e01e5ae903f5aee4c1c400f3ccd1351fe7bb3340e8f6cf61554a24b7e2`	pdf-javascript-stream	PDF /JS object 76 at offset 0x999	48703 bytes

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