MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious Attachment
T1059.005 Command and Scripting Interpreter: Visual Basic
The file is an Excel 4.0 macro-enabled spreadsheet. Critical heuristics indicate the presence of an Auto_Open macro and the use of dangerous formula APIs, specifically the RUN function. The document body contains a lure to "Enable Editing" and "Enable Content", which is a common social engineering tactic to bypass security warnings and execute embedded macros. No specific IOCs like URLs or hashes were extracted, but the presence of the Auto_Open macro and the social engineering lure strongly suggest malicious intent.
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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XLM Auto_Open with dangerous formula APIs critical OLE_XLM_DANGEROUS_FNExcel 4.0 macro sheet contains an Auto_Open / Auto_Close entry and dangerous XLM formula APIs that can invoke programs, write files, or transfer control without VBA.
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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.txt8be5f87649cf5af1ddce52b8e0f3261b7a1eff52fc925fc83306e77083751fb9 |
xlm-macro | oletools.olevba.extract_all_macros (XLM macro listing) | 80513 bytes |
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