MALICIOUS
240
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1059.001 PowerShell
T1204.002 Malicious File
The file is an OLE document containing VBA macros. Heuristics indicate the presence of a Shell() call within the VBA code, suggesting an attempt to execute external commands. ClamAV detections of 'Doc.Trojan.Marker-31' and 'Doc.Trojan.Marker-1' on the main file and an extracted artifact further confirm its malicious nature. The primary function appears to be the execution of a secondary payload via the Shell() command.
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.basef71fbf560c7d858e58aa53ee1dec058b3ea0aa7d8f8279c5797c8967f82b9b5 |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 22153 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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