MALICIOUS
60
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
The file is an Excel 4.0 macro sheet that is encrypted, which is a strong indicator of malicious intent. The presence of an 'AUTOOPEN' macro further suggests that code execution is intended upon opening the document. No specific family could be identified due to the encryption and lack of further script details.
Heuristics 2
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Encrypted Excel 4.0 macro sheet high OLE_XLM_ENCRYPTED_MACROSHEETWorkbook contains an Excel 4.0 macro sheet and BIFF FILEPASS encryption. Password-protected XLM macro sheets, especially the default Excel password path, are a common malware evasion pattern because static formula extraction may fail until the workbook is decrypted.
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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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