Analysis
- max time kernel
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
02/11/2026, 10:38
General
- Target $R0/Uninstall MALVO Chat.exe
- Size 220KB
- Sample261102-mpk2jsvt8n
- SHA256 6de39dec672ca3687187839984f39468af460cceb48b2baf9e0f279f6d061a15
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 14 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Using powershell.exe command.
- Hide Artifacts: Ignore Process Interrupts 1 TTPs 1 IoCs
Command interpreters often include specific commands/flags that ignore errors and other hangups.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Kills process with taskkill 1 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 25 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall MALVO Chat.exe"C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall MALVO Chat.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe"C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\$R0\2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /F /T /IM "MALVO Chat.exe"3⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -NonInteractive -C "if (Get-Command Get-CimInstance -ErrorAction SilentlyContinue) { exit 0 } else { exit 1 }"3⤵
- Hide Artifacts: Ignore Process Interrupts
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -NonInteractive -C "if ((Get-ExecutionPolicy -Scope Process) -eq 'Restricted') { exit 1 } else { exit 0 }"3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -NonInteractive -C "if ((Get-CimInstance -ClassName Win32_Process | ? {$_.Path -and $_.Path.StartsWith('C:\Users\Admin\AppData\Local\Programs\MALVO Chat', 'CurrentCultureIgnoreCase')}).Count -gt 0) { exit 0 } else { exit 1 }"3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
__PSScriptPolicyTest_35a2wz15.g3j.ps1
StdUtils.dll
System.dll
UAC.dll
WinShell.dll
modern-wizard.bmp
nsDialogs.dll
nsExec.dll
Un_A.exe
memory/932-61-0x000000006FEF0000-0x000000006FF3C000-memory.dmp
memory/932-59-0x0000000005E30000-0x000000000618B000-memory.dmp
memory/932-65-0x0000000007860000-0x0000000007871000-memory.dmp
memory/932-64-0x0000000007900000-0x0000000007996000-memory.dmp
memory/3608-74-0x000000006FEF0000-0x000000006FF3C000-memory.dmp
memory/3608-72-0x0000000005660000-0x00000000059BB000-memory.dmp
memory/3608-77-0x0000000070100000-0x000000007045B000-memory.dmp
memory/5292-34-0x0000000005A80000-0x0000000005AE6000-memory.dmp
memory/5292-42-0x000000006FEF0000-0x000000006FF3C000-memory.dmp
memory/5292-38-0x0000000005C30000-0x0000000005F8B000-memory.dmp
memory/5292-48-0x00000000070B0000-0x00000000070CA000-memory.dmp
memory/5292-49-0x00000000073E0000-0x00000000073EA000-memory.dmp
memory/5292-50-0x0000000007580000-0x00000000075AA000-memory.dmp
memory/5292-51-0x00000000075B0000-0x00000000075D4000-memory.dmp
memory/5292-52-0x0000000070050000-0x00000000703AB000-memory.dmp
memory/5292-45-0x0000000006FD0000-0x0000000006FF0000-memory.dmp
memory/5292-46-0x00000000072E0000-0x0000000007383000-memory.dmp
memory/5292-41-0x0000000007010000-0x0000000007046000-memory.dmp
memory/5292-40-0x0000000006040000-0x000000000608C000-memory.dmp
memory/5292-39-0x0000000005FF0000-0x000000000600E000-memory.dmp
memory/5292-47-0x0000000007A10000-0x000000000808C000-memory.dmp
memory/5292-35-0x0000000005AF0000-0x0000000005B56000-memory.dmp
memory/5292-33-0x0000000005150000-0x0000000005172000-memory.dmp
memory/5292-32-0x00000000053C0000-0x0000000005A0A000-memory.dmp
memory/5292-31-0x0000000002B00000-0x0000000002B36000-memory.dmp