MALICIOUS
300
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1059.003 Windows Command Shell
T1204.002 Malicious File
The sample contains a Workbook_Open macro that executes obfuscated VBA code. This code utilizes Wscript.Shell to run batch and VBScript files dropped to c:\programdata\, and also attempts to download and execute payloads from multiple URLs. The ClamAV detection name 'Doc.Downloader.EmotetRed02220-9938909-0' strongly suggests an Emotet family infection.
Heuristics 7
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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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ClamAV: Doc.Downloader.EmotetRed02220-9938909-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Downloader.EmotetRed02220-9938909-0
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Reference to Windows Script Host high SC_STR_WSCRIPTReference to Windows Script Host
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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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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.bas7a075e02dc1e88807280b9b84946715e79a3c091d50391301434649c77b78ea1 |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 12808 bytes |
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