PDF malware analysis — malicious · ba25ff1a573a7063

MALICIOUS

PDF

7.5 KB Authoring application: Jgaxivakafowizasi (via 08ff7Uohosicilab)

MD5: d3dd40768f7a3d5f5ec07520a36cb7bf SHA-1: ba1a4107e7d6dae3685c834a1f79f68d4f468fb1 SHA-256: ba25ff1a573a706363a6c5852c8c0230b91e34fe2862ec7ccc7da5419bf6f002

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file was flagged as malicious by multiple heuristics, including a high-confidence ML classifier and ClamAV detection for obfuscated objects. Embedded JavaScript was also detected, indicating a likely attempt to execute malicious code. The specific action of the JavaScript is unclear due to obfuscation, but it is the primary vector for the attack. No specific IOCs were extracted.

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

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