MALICIOUS
260
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1059.001 PowerShell
The file contains VBA macros, and a critical heuristic indicates a Shell() call within the VBA code. This suggests the macro is designed to execute arbitrary commands. The presence of 'macros.bas' as an extracted artifact further supports this. The ClamAV detections indicate this is a known malicious document type. The shell execution likely downloads and runs a second-stage payload.
Heuristics 6
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Shell() call in VBA critical OLE_VBA_SHELLShell() call in VBA
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ClamAV: Doc.Trojan.Marker-31 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Trojan.Marker-31
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ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAVClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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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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NOP-equivalent sled detected medium SC_NOP_EQUIV_SLEDLong run of 0x40 bytes
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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.bas530a9b30602cc4d21fcc66fdb32617c19ec58fe54cfb15e0478ea5c7fb0f4511 |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 18845 bytes |
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Detection
ClamAV:
Doc.Trojan.Marker-1
Obfuscation or payload:
likely
Carved macro source contains an auto-exec entry point and execution/download terms.
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