MALICIOUS
102
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic for Applications
T1204.002 Malicious File
The critical heuristic OLE_XLM_AUTOOPEN_DEFINEDNAME indicates the presence of an Excel 4.0 Auto_Open macro, which is designed to execute automatically when the workbook is opened. The SE_ENABLE_LURE heuristic confirms that the document contains instructions to enable macros. The extracted URLs and the presence of `rundll32.exe` and `regsvr32.exe` in the DOC BODY suggest that the macro's purpose is to download and execute a second-stage payload from one of the provided URLs.
Heuristics 4
-
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.
-
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.
-
Macro/content-enable lure medium SE_ENABLE_LUREDocument instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
-
Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://caiogabriel.com.br/tOKLlSLW/lena.html
- https://bwctradex.com/BcotoLXTr1y/lena.html
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
xlm_macros.txtd46ad6b52df62d280ddc3eb28f4fdfc78bc84dc99077b9aa50809affc4be6057 |
xlm-macro | oletools.olevba.extract_all_macros (XLM macro listing) | 8812 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.