MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1059.001 PowerShell
T1204.002 Malicious File
The file contains a Workbook_Open VBA macro, which is a common technique for executing malicious code upon opening the document. The heuristic 'VBA p-code auto-exec with execution tokens' specifically indicates that the macro is designed to execute commands, likely via the Shell function. The 'VBA Chr string obfuscation' heuristic suggests the macro's content is intentionally obscured. Given these indicators, the primary function is to download and execute a secondary payload.
Heuristics 4
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Workbook_Open macro high OLE_VBA_WBOPENWorkbook_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.bas95b391c3c4d6d974cbd48f8146b23cdb6ed1da69f84530bbd709d1ae1bd85a9f |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 287565 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 22 Chr/ChrW string-construction calls.
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