MALICIOUS
220
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV with the signature 'Doc.Trojan.Xaler-1'. Static analysis detected VBA macros, specifically a 'Document_Open' macro, which is a common technique for executing malicious code upon opening the document. The presence of 'macros.bas' and the 'OLE_VBA_MACROS' heuristic confirms the macro-based nature of the threat. The likely intent is to download and execute a second-stage payload, as indicated by the critical heuristic 'EXTRACTED_FILE_STATIC_TRIAGE' which flagged VBA Chr string obfuscation.
Heuristics 5
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ClamAV: Doc.Trojan.Xaler-1 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Trojan.Xaler-1
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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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Document_Open macro high OLE_VBA_DOCOPENDocument_Open macro
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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.bas878b385250756e10e4959d16a2d6565b923488ec83681eb29ed93bc93500c2f1 |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 242338 bytes |
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Detection
ClamAV:
Doc.Trojan.Xaler-1
Obfuscation or payload:
likely
Carved artifact contains 10 Chr/ChrW string-construction calls.
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