PDF malware analysis — malicious · c66828ba662afc38

MALICIOUS

PDF

7.5 KB Authoring application: Jgaxivakafowizasi (via fb317Uohosicilab)

MD5: 192dba0c2d90d53cdf988f5da5f42473 SHA-1: 719af6f9e43de9c26390b25392182cd16bbd7dd3 SHA-256: c66828ba662afc3864c69998401bf958f14f4a1d429287b352803d3cbda27324

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged as malicious by multiple heuristics, including a critical ClamAV detection for obfuscated objects and an ML classifier. The presence of embedded JavaScript, identified as 'javascript_obj0011_000.js', strongly suggests that the PDF is designed to execute malicious code. The JavaScript likely downloads and executes a second-stage payload, which is a common technique for PDF-based malware delivery. The obfuscated nature of the PDF and its JavaScript content contribute to the confidence in its malicious intent.

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` `c35f939b8b08b4458e4f2307d4bfd0afc23546c955e11c1da88e87302e40c9b0`	pdf-javascript-stream	PDF /JS object 11 at offset 0x1358	3029 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.