PDF malware analysis — malicious · 4695c8c075fbd6f1

MALICIOUS

PDF

16.9 KB Authoring application: Zeviwipidacbwxwo

MD5: 280bf2cdad565457a3a2444fa1fb5a38 SHA-1: 1f8fa40949c8f31e62e9811fd8f766c74b3039a9 SHA-256: 4695c8c075fbd6f1e0d9cb104b828072da6911d8dc888f16e6394ceab647a217

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The sample is a PDF file flagged by ClamAV as Pdf.Dropper.Agent-7256579-0 and has a high ML score indicating maliciousness. It contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities to download and execute further payloads. The document body is heavily obfuscated and truncated, preventing a clear understanding of its lure, but the presence of JavaScript and the ClamAV detection strongly suggest a dropper functionality.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 3

ClamAV: Pdf.Dropper.Agent-7256579-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7256579-0
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_obj0022_000.js` `4ab50dcd97972e878e7304b45d34f144ca69fe8d1e78b082e57eab7f5d562422`	pdf-javascript-stream	PDF /JS object 22 at offset 0x3005	1966683 bytes

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