MALICIOUS
200
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1059.001 PowerShell
This XLS file contains VBA macros, including an Auto_Open macro that calls the Shell() function. This indicates the macro is designed to execute arbitrary commands upon opening the document. The script appears to be obfuscated, making it difficult to determine the exact payload, but the presence of Shell() strongly suggests it's a downloader or initial execution vector. No specific family could be identified due to the obfuscation and lack of concrete indicators.
Heuristics 5
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Shell() call in VBA critical OLE_VBA_SHELLShell() call in VBA
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Auto_Open macro high OLE_VBA_AUTOAuto_Open macro
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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.basdf5584104f4dd6b8efae334bbacbbaf66d8e8d359bdd829530cf4eb1df08e7f6 |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 3479 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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