MALICIOUS
200
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1204.002 Malicious File
The file is an Excel 4.0 macro-enabled spreadsheet containing an Auto_Open macro. This macro utilizes the RUN function to download and execute a payload from one of the provided URLs. ClamAV detection confirms this is a known Emotet downloader variant. The macro's intent is to download and execute a second-stage payload from the embedded URLs.
Heuristics 4
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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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XLM Auto_Open with dangerous formula APIs critical OLE_XLM_DANGEROUS_FNExcel 4.0 macro sheet contains an Auto_Open / Auto_Close entry and dangerous XLM formula APIs that can invoke programs, write files, or transfer control without VBA.
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ClamAV: Xls.Downloader.Emotet-ea85817e7e81383e-9951566-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Xls.Downloader.Emotet-ea85817e7e81383e-9951566-0
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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.txtd77c0e98c974009fe5584bce5e0ffd72a8b15ac4e83c1240090b3dfbcca2aa7b |
xlm-macro | oletools.olevba.extract_all_macros (XLM macro listing) | 8320 bytes |
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