MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.005 Visual Basic
T1204.002 Malicious File
The file is identified as an encrypted Excel 4.0 macro sheet, a common delivery mechanism for malware. ClamAV detection confirms its malicious nature, specifically flagging it as 'Xls.Dropper.Agent-7755581-0'. The presence of macro sheets and the encrypted nature strongly suggest it's intended to execute malicious code upon opening, likely downloading a secondary payload.
Heuristics 4
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ClamAV: Xls.Dropper.Agent-7755581-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Xls.Dropper.Agent-7755581-0
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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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OLE metadata lists many Excel 4.0 macro sheets high OLE_XLM_DOCPROPS_MACROSHEET_INVENTORYWorkbook contains a BIFF Excel 4.0 macro-sheet marker and its clear OLE DocumentSummaryInformation stream lists many MacroN sheet titles. This is a useful static signal when FILEPASS encryption prevents formula extraction from the workbook stream.
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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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