PDF malware analysis — malicious · 944993cfbc79deba

MALICIOUS

PDF

7.3 KB Authoring application: Bofatezozinefaxfa (via dff2dVogewojixariuawi)

MD5: c0d4b68772ff1ed4e452f5503d76170d SHA-1: 8205a76cae42d84ba6200f00ecd1af162c3d2c96 SHA-256: 944993cfbc79deba5992a7c4ffa22b98ac4ec09be144d8e7210507f7fb37064f

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1559.001 Component Object Model

The file is a PDF document flagged by ClamAV as Heuristics.PDF.ObfuscatedNameObject and a machine learning classifier as malicious. It contains embedded JavaScript, indicating an attempt to exploit vulnerabilities within the PDF reader. The JavaScript is likely designed to download and execute a second-stage payload, although the exact functionality is obscured. The authoring application 'Bofatezozinefaxfa' is also suspicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9954

Heuristics 3

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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_obj0011_000.js` `ca838ab153ea9de4fff1e74bdd0848fd720f71bc6fbee4425be234136cd19b41`	pdf-javascript-stream	PDF /JS object 11 at offset 0x1349	2325 bytes

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