PDF malware analysis — malicious · b9b0ee70cc628a8f

MALICIOUS

PDF

7.1 KB Authoring application: Wezolokofecpo (via 95317Nworeticakebi)

MD5: 4a621f28f18526352d3b48cf425e0e8a SHA-1: 8c1830e0d08b2ba62888de049404438884424b2d SHA-256: b9b0ee70cc628a8f4c14972bf0e614d60463d7d17915db98d15ee5814d48c7d0

76 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF file exhibits characteristics of malicious intent, including obfuscated JavaScript embedded within a stream. The ClamAV heuristic 'Heuristics.PDF.ObfuscatedNameObject' further supports this assessment. While the exact script functionality is obscured, the presence of embedded JavaScript in a PDF commonly indicates an attempt to download and execute a secondary payload or exploit a vulnerability.

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` `437a5d40b54247c17dfb3ac60e39d3ecfad672a269694af1851a077d9726a8d2`	pdf-javascript-stream	PDF /JS object 11 at offset 0x1342	2272 bytes

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