MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1059.001 PowerShell
T1566.001 Spearphishing Attachment
The file is an Office document containing a large VBA macro. Heuristics indicate the presence of a 'Document_Open' macro that uses 'CreateObject', suggesting it's designed to execute code upon opening. The macro source is obfuscated with Chr string obfuscation. While no specific URLs or network indicators were extracted, the presence of a Document_Open macro with CreateObject is a strong indicator of malicious intent, likely to download and execute a second-stage payload.
Heuristics 5
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Document_Open macro high OLE_VBA_DOCOPENDocument_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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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.bas1c4e818d44043f9663a2f703902091905cffc89e688df26e0d2fa49bddef6476 |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 41808 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 37 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.
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