MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1059.005 Visual Basic
The critical heuristics OLE_XLM_AUTOOPEN and OLE_XLM_DANGEROUS_FN indicate the presence of an Excel 4.0 Auto_Open macro. The macro script reconstructs and executes a PowerShell command to download a file named 'pd.bat' from the URL 'https://cutt.ly/4jsSu5Q' into the environment's temporary directory and then execute it. This indicates a downloader functionality.
Heuristics 3
-
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.
-
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.txt62ee9cc006ed8c05436afb07321398ac484c4645bb2f79cc4b55e6a9df64ca51 |
xlm-macro | oletools.olevba.extract_all_macros (XLM macro listing) | 1484 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.