MALICIOUS
262
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1059.001 PowerShell
T1204.002 Malicious File
The sample is a malicious OLE document containing VBA macros. The presence of AutoOpen and Auto_Open subroutines, along with a critical heuristic firing for Shell() calls in VBA, indicates that the macros are designed to execute arbitrary code upon opening. The ClamAV detection name 'Xls.Malware.Valyria-10029786-0' further confirms its malicious nature and suggests a known malware variant. The script's primary function appears to be executing a command via Shell(), likely to download and run a second-stage payload.
Heuristics 7
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Shell() call in VBA critical OLE_VBA_SHELLShell() call in VBA
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ClamAV: Xls.Malware.Valyria-10029786-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Xls.Malware.Valyria-10029786-0
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AutoOpen macro high OLE_VBA_AUTOOPENAutoOpen macro
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Auto_Open macro high OLE_VBA_AUTOAuto_Open macro
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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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VBA macros detected medium OLE_VBA_MACROSDocument contains VBA macro code
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://schemas.openxmlformats.org/drawingml/2006/main
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
macros.bas3bb6ed77f36d1e19414e04485b9174a0ac9a32564b6d209056dbd3753d0c716d |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 31454 bytes |
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