SUSPICIOUS
40
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1204.002 Malicious File
The file contains VBA macros with an Auto_Open function that utilizes the Shell() command. This indicates an attempt to execute arbitrary commands, likely to download and run a second-stage payload. The script uses RByteEncrypt for obfuscation, making direct analysis of the payload difficult, but the presence of multiple Shell() calls suggests a multi-stage execution process.
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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VBA macros detected medium OLE_VBA_MACROSDocument contains VBA macro code
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Macro capabilities present but unconfirmed info MACRO_CAPABILITY_UNCORROBORATEDThe document's VBA exposes execution capabilities (Shell/WScript/CreateObject/auto-exec) but nothing corroborates malicious intent — no obfuscation, memory-exec primitive, download+exec chain, encoded payload, LOLBin, DDE, AV hit, or suspicious URL. The verdict was capped at 'suspicious' so legitimate macro-heavy business documents are not flagged malicious on capability presence alone.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
macros.basab069c154bec0c71dfc2a0b764bf3adefa515e4943761318bea24316aa48ec26 |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 27505 bytes |
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