Office (OLE) / .XLS malware analysis — malicious · 5b35ee161073781a

MALICIOUS

Office (OLE) / .XLS

33.0 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel First seen: 2022-10-12

MD5: 99df9946cb44e65a25d1d6dc3c264d0f SHA-1: a1d2a73e79abb0fbc792b71480814988cfd6a40c SHA-256: 5b35ee161073781a71c51ddf6416fdfca862887d5dfd4e22d2914c816dc32093

100 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The embedded VBA macro contains obfuscated PowerShell commands. The script reconstructs the URL 'http://nedremmer.com/paradigm/client/download.js' and attempts to download and execute a JavaScript file named 'notapad.js' from the temporary directory. This indicates a downloader or droppper functionality.

Heuristics 3

Reference to PowerShell high SC_STR_POWERSHELL

Reference to PowerShell
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `c0ad471d207a7af4c24b5b4392366c67c5245df368ed4acc655eb0d592346745`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1493 bytes

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