MALICIOUS
240
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1059.003 Windows Command Shell
The file is a Microsoft Word document containing VBA macros. A critical heuristic firing indicates the presence of Shell() calls within the VBA code, which is commonly used to execute arbitrary commands. The extracted artifact 'macros.bas' and the 'OLE_VBA_SHELL' heuristic strongly suggest that this macro is designed to download and execute a second-stage payload. The ClamAV detections further corroborate the malicious nature of the file and its extracted components.
Heuristics 5
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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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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.bas18e80123ca285537b53a532a7699ad24cfd2d71dfb3d72b1158e4148aec1e45e |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 6244 bytes |
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Detection
ClamAV:
Doc.Trojan.Marker-3
Obfuscation or payload:
likely
Carved macro source contains an auto-exec entry point and execution/download terms.
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