PDF malware analysis — malicious · d22a9b2a5e085888

MALICIOUS

PDF

58.7 KB Created: 2006-02-16 15:03:51 -08:00 Authoring application: lice (via ubst)

MD5: 07fdc06806041c7f078415114d70eeb0 SHA-1: 262cc1d37b26d710756cf96bb6255486afdde15d SHA-256: d22a9b2a5e0858887fe5e3ba86bcf42f7d6e289e9f493e52a675ecd7c9f45574

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF 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 embedded JavaScript is likely responsible for downloading and executing a second-stage 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` `72f923603eba1b2de040c9494aa504cba33afa1630196cf9eebd6e52861c34a4`	pdf-javascript-stream	PDF /JS object 76 at offset 0x94B	50260 bytes

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