PDF / .SWA malware analysis — malicious · 4b5705e87b026ad8

MALICIOUS

PDF / .SWA

6.5 KB Authoring application: Ghamariqegi (via f4079Pizoxuafocebi)

MD5: e7df69b1ebce4ed6128d6cc31062d03c SHA-1: fde1777f229bac186033c1fdadb8e9b604d87433 SHA-256: 4b5705e87b026ad818d410380e37e51fc8f1a5b2b29db295f68f5bbaec06c196

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is a PDF containing embedded JavaScript, as indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The ML classifier strongly flagged it as malicious, and ClamAV detected it as an obfuscated PDF. The embedded JavaScript file, 'javascript_obj0010_000.js', is the primary artifact suggesting malicious intent, likely to download and execute a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

Heuristics 4

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.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0010_000.js` `2c5522e807b63b772d04981ce7060edb9be4bf1d8e75e0273768f249d0a5dae4`	pdf-javascript-stream	PDF /JS object 10 at offset 0x11BD	1914 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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