PDF / .SWA malware analysis — malicious · 21141f39b33b17f9

MALICIOUS

PDF / .SWA

7.3 KB Created: 2010-09-20 19:10:58 Authoring application: Rixibacalipa (via bde98Zaqanibixajiceuof)

MD5: e57fbf9a6358151fe0f092b673abea3b SHA-1: 6baf903a91e6e4944d405968f0bb2fe5760c01d7 SHA-256: 21141f39b33b17f9479eb65fe530c92d2555a8a5095890f20f6549f1c4b6e3c6

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.002 Spearphishing Attachment

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The ML classifier and ClamAV also flagged this file as malicious. The embedded JavaScript, named 'javascript_obj0010_000.js', is the primary indicator of malicious activity, likely serving as a dropper or exploit loader. The authoring application and creation date suggest a potentially older, but still active, threat.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

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_obj0010_000.js` `8661cec62b2eda9a6abce39aaeb1951f6edad7b3401dc4b968271d69e4975d8c`	pdf-javascript-stream	PDF /JS object 10 at offset 0x12D9	2324 bytes

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