PDF malware analysis — malicious · fb98290be8a12c7e

MALICIOUS

PDF

7.1 KB Created: 2009-07-13 19:22:54 Authoring application: fo3k (via w2A)

MD5: 08a16f07eb715fe51aabd2d9372e024a SHA-1: fe9321305a117a765e8d7bad136e59dab323306a SHA-256: fb98290be8a12c7e7e52ecd9a87066fded7850ad1de1a123db6bb292c2df6806

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a dropper. Heuristics indicate the presence of embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities or initiating malicious actions. The ML classifier's high confidence score and the ClamAV detection strongly suggest this PDF is designed to drop or execute further malicious content.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Dropper.Agent-7327490-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7327490-0
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_obj0005_000.js` `6dd020a3ca77a974cdefd5c7033aa4a6fed36e2447a93fe3f772bd28c7ede9a6`	pdf-javascript-stream	PDF /JS object 5 at offset 0x136	247 bytes

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