PDF malware analysis — malicious · f043e4e8410c3c02

MALICIOUS

PDF

12.7 KB Created: 2010-03-20 06:46:51

MD5: 07ed23df5a663a1b7670816877017890 SHA-1: 461b3b873ab8e8b315df2d916928df8fe31c6886 SHA-256: f043e4e8410c3c02e795ce0e51dc4c5a361877f672bbbbe47d5421c2abc08ccb

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged by ClamAV as Pdf.Exploit.Agent-21699 and a machine learning classifier indicated a high probability of maliciousness. Heuristics indicate the presence of JavaScript actions and embedded JS streams within the PDF. While the document body text is heavily corrupted, the presence of JavaScript strongly suggests an attempt to exploit a vulnerability and execute arbitrary code, likely for downloading and running a secondary payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Exploit.Agent-21699 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-21699
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_obj0020_000.js` `718bc392ea082607e72bc2560d47728679f7a1727e6d9681e40bdab94cf4e29e`	pdf-javascript-stream	PDF /JS object 20 at offset 0x2CFD	1176 bytes

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