Office (OLE) / .XLS malware analysis — malicious · e2be8cf794bf4e1a

MALICIOUS

Office (OLE) / .XLS

138.0 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel

MD5: a93cb49d18df91dd20dab84b24b0df62 SHA-1: a415d75af13f002dfe1cbebcb3c58b4fe17584d1 SHA-256: e2be8cf794bf4e1ae9465d0a859c565c8d58f5094e5f781c11833a38244c29f6

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The file is an Excel spreadsheet containing VBA macros, including an Auto_Open macro, which is a common technique for executing malicious code upon opening. The ClamAV detection 'Doc.Downloader.Docusign112100-9908075-0' suggests a downloader functionality. While the provided VBA script primarily manipulates sheet visibility and shape visibility, the presence of Auto_Open and the downloader heuristic indicate a high likelihood of malicious intent, possibly to download and execute a secondary payload.

Heuristics 4

ClamAV: Doc.Downloader.Docusign112100-9908075-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Docusign112100-9908075-0
Auto_Open macro high OLE_VBA_AUTO

Auto_Open macro
Auto_Close macro high OLE_VBA_AUTOCLOSE

Auto_Close macro
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` `cd468214d3d2de6ed0e54668d5bbf78b9464f08618e981095b737862968ab57b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	5239 bytes

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