MALICIOUS
200
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic for Applications
T1059.003 Windows Command Shell
T1204.002 Malicious File
The critical heuristic 'OLE_VBA_OBFUSCATED_AUTOEXEC_LOADER' indicates an obfuscated auto-exec VBA loader. The 'auto_open' subroutine is present, which is a common entry point for malicious macros. The script uses 'CreateObject' and 'Shell' functions, suggesting it attempts to execute a second-stage payload, likely to download and run further malware.
Heuristics 5
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Obfuscated auto-exec VBA loader critical OLE_VBA_OBFUSCATED_AUTOEXEC_LOADERAuto-exec VBA reconstructs strings with a heavy custom decoder (numeric char-array, repeated hex-string decode, or junk-token Replace removal) and feeds them to a COM-instantiation or execution sink. This obfuscated-loader shape keeps CreateObject/Shell/URL indicators out of the macro source.
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Auto_Open macro high OLE_VBA_AUTOAuto_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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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.basf45e9007bba4b56670780e9e6448f516e7115b67698d397e5a1ada52d5396342 |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 70713 bytes |
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