MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1547.001 Registry Run Keys / Startup Folder
The file is an Excel spreadsheet containing VBA macros. The Workbook_Open macro is present and configured to execute automatically when the file is opened. This macro uses CreateObject, indicating it likely attempts to launch a secondary payload or perform malicious actions. The presence of 'macros.bas' suggests a standard macro-based delivery mechanism. Without further script content, the exact payload and persistence method are unknown, but the auto-execution and CreateObject call are strong indicators of malicious intent.
Heuristics 5
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Workbook_Open macro high OLE_VBA_WBOPENWorkbook_Open macro
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CreateObject call high OLE_VBA_CREATEOBJCreateObject call
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VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXECCompiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
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Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGEOne or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
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VBA macros detected medium OLE_VBA_MACROSDocument contains VBA macro code
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
macros.bas880c8e6e4d32451c1c6e8b44e91ab06cd0fbd61bbba60730a255e6bc468c5abd |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 2534 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved macro source contains an auto-exec entry point and execution/download terms.
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