Analysis
- max time kernel
119s - max time network
94s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
15/04/2026, 03:52
General
- Target $R0/Uninstall sparkle.exe
- Size 140KB
- Sample260415-ee672aes7j
- SHA256 5edc9b41eeaa5bcda096c99036da31ca288ecfd9b1b371d8c87b4efc1a464abf
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 8 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 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 24 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall sparkle.exe"C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall sparkle.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\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -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" -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" -C "if ((Get-CimInstance -ClassName Win32_Process | ? {$_.Path -and $_.Path.StartsWith('C:\Users\Admin\AppData\Local\Temp\$R0', '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
powershell.exe.log
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
__PSScriptPolicyTest_ysamm3wp.ucx.ps1
StdUtils.dll
System.dll
WinShell.dll
nsExec.dll
Un_A.exe
memory/1324-100-0x00000000071E0000-0x0000000007284000-memory.dmp
memory/1324-92-0x00000000065A0000-0x00000000065EC000-memory.dmp
memory/1324-93-0x000000006FF30000-0x000000006FF7C000-memory.dmp
memory/1324-101-0x0000000070160000-0x00000000704B7000-memory.dmp
memory/1324-84-0x0000000005B40000-0x0000000005E97000-memory.dmp
memory/1324-103-0x0000000000AA0000-0x0000000000C4C000-memory.dmp
memory/2720-4-0x0000000002480000-0x0000000002502000-memory.dmp
memory/5152-120-0x00000000022E0000-0x0000000002362000-memory.dmp
memory/5152-30-0x00000000022E0000-0x0000000002362000-memory.dmp
memory/5456-43-0x0000000007270000-0x0000000007314000-memory.dmp
memory/5456-20-0x00000000058C0000-0x0000000005926000-memory.dmp
memory/5456-41-0x0000000004C50000-0x0000000004C60000-memory.dmp
memory/5456-40-0x0000000004C50000-0x0000000004C60000-memory.dmp
memory/5456-33-0x000000006FF50000-0x000000006FF9C000-memory.dmp
memory/5456-45-0x0000000007320000-0x000000000733A000-memory.dmp
memory/5456-44-0x00000000079A0000-0x000000000801A000-memory.dmp
memory/5456-46-0x00000000073A0000-0x00000000073AA000-memory.dmp
memory/5456-47-0x0000000007530000-0x000000000755A000-memory.dmp
memory/5456-48-0x0000000007560000-0x0000000007584000-memory.dmp
memory/5456-49-0x00000000700C0000-0x0000000070417000-memory.dmp
memory/5456-52-0x0000000004B10000-0x0000000004B92000-memory.dmp
memory/5456-31-0x000000007FC50000-0x000000007FC60000-memory.dmp
memory/5456-14-0x0000000004C50000-0x0000000004C60000-memory.dmp
memory/5456-32-0x0000000006580000-0x00000000065B4000-memory.dmp
memory/5456-15-0x0000000004AB0000-0x0000000004AE6000-memory.dmp
memory/5456-16-0x0000000004C50000-0x0000000004C60000-memory.dmp
memory/5456-17-0x0000000005290000-0x00000000058BA000-memory.dmp
memory/5456-18-0x0000000005130000-0x0000000005152000-memory.dmp
memory/5456-29-0x0000000006050000-0x000000000609C000-memory.dmp
memory/5456-28-0x0000000005FC0000-0x0000000005FDE000-memory.dmp
memory/5456-27-0x0000000005AB0000-0x0000000005E07000-memory.dmp
memory/5456-42-0x0000000006F90000-0x0000000006FAE000-memory.dmp
memory/5456-19-0x00000000051D0000-0x0000000005236000-memory.dmp
memory/6028-75-0x00000000051F0000-0x0000000005272000-memory.dmp
memory/6028-73-0x0000000007C80000-0x0000000007C91000-memory.dmp
memory/6028-72-0x0000000007D20000-0x0000000007DB6000-memory.dmp
memory/6028-65-0x000000006FF50000-0x000000006FF9C000-memory.dmp
memory/6028-57-0x0000000006150000-0x00000000064A7000-memory.dmp