MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1204.002 Malicious File
The file is an Excel 4.0 workbook containing an Auto_Open macro, as indicated by multiple critical heuristic firings. The macro sheet uses dangerous functions, including 'RUN', suggesting it is designed to execute arbitrary commands. The document body appears to be a payroll detail report, likely used as a lure to trick users into opening the malicious file.
Heuristics 3
-
Excel 4.0 (XLM) Auto_Open + macro sheet critical OLE_XLM_AUTOOPENWorkbook contains an Auto_Open / Auto_Close defined name together with an Excel 4.0 macro sheet — the canonical XLM auto-execution shape used by malware families such as Emotet and QakBot.
-
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.
-
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.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
xlm_macros.txt369089c5a07bb30c6402de1d836f6ecfeccc55bdfacb9057850d6ec6aa5b6626 |
xlm-macro | oletools.olevba.extract_all_macros (XLM macro listing) | 34439 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.