MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
T1059.005 Visual Basic
The Workbook_Open VBA macro is designed to execute a PowerShell command. This command is constructed by concatenating strings and is intended to download a second-stage executable from 'http://18.209.1.250/22/RTL-845120054875.exe' and save it as 'C:\Users\Public\Documents\listupon.exe'. The macro also writes this command to a file named 'C:\Users\Public\apersone.czmd' before executing it via 'explorer.exe'. This indicates a downloader pattern.
Heuristics 5
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Reference to ShellExecute API high SC_STR_SHELLEXECReference to ShellExecute API
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Workbook_Open macro high OLE_VBA_WBOPENWorkbook_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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Suspicious extracted artifact medium 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.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
macros.basbc1a845bfbc2720c51b363ec5908d716e3bb458f34fc657900d061789571e091 |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 1895 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 1 shell/COM execution token(s).
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