Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
26/05/2024, 03:46
General
- Target dc3c111c0a69831725412a7860ce36623ce4a90e689e3aa7f3bceef3e5bbbfb5.exe
- Size 5KB
- Sample240526-eblf6adf91
- SHA256 dc3c111c0a69831725412a7860ce36623ce4a90e689e3aa7f3bceef3e5bbbfb5
Malware Config
Signatures
- Downloads MZ/PE file
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Deletes itself 1 IoCs
- Executes dropped EXE 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of WriteProcessMemory 64 IoCs
Processes
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C:\Windows\system32\sihost.exesihost.exe1⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc1⤵
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C:\Windows\system32\taskhostw.exetaskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}1⤵
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
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C:\Users\Admin\AppData\Local\Temp\dc3c111c0a69831725412a7860ce36623ce4a90e689e3aa7f3bceef3e5bbbfb5.exe"C:\Users\Admin\AppData\Local\Temp\dc3c111c0a69831725412a7860ce36623ce4a90e689e3aa7f3bceef3e5bbbfb5.exe"2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\budha.exe"C:\Users\Admin\AppData\Local\Temp\budha.exe"3⤵
- Checks computer location settings
- Deletes itself
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kilf.exe"C:\Users\Admin\AppData\Local\Temp\kilf.exe"4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Ofez\andao.exe"C:\Users\Admin\AppData\Roaming\Ofez\andao.exe"5⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\LCN9517.bat"5⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc1⤵
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵
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C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca1⤵
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca1⤵
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵
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C:\Windows\system32\backgroundTaskHost.exe"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca1⤵
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C:\Windows\system32\backgroundTaskHost.exe"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca1⤵
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵
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C:\Windows\system32\BackgroundTransferHost.exe"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.11⤵
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C:\Windows\system32\BackgroundTransferHost.exe"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.11⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
LCN9517.bat
budha.exe
kilf.exe
andao.exe
memory/736-91-0x0000000000400000-0x000000000046F000-memory.dmp
memory/736-23-0x0000000000400000-0x000000000046F000-memory.dmp
memory/736-25-0x0000000002870000-0x0000000002871000-memory.dmp
memory/736-26-0x0000000002880000-0x0000000002C80000-memory.dmp
memory/736-27-0x0000000002880000-0x0000000002C80000-memory.dmp
memory/736-73-0x000000006FFF0000-0x0000000070000000-memory.dmp
memory/736-74-0x000000006FFF0000-0x0000000070000000-memory.dmp
memory/736-76-0x000000006FFF0000-0x0000000070000000-memory.dmp
memory/736-78-0x000000006FFF0000-0x0000000070000000-memory.dmp
memory/736-75-0x000000006FFF0000-0x0000000070000000-memory.dmp
memory/736-80-0x00000000025C0000-0x0000000002609000-memory.dmp
memory/736-71-0x00000000025C0000-0x0000000002609000-memory.dmp
memory/736-28-0x0000000002880000-0x0000000002C80000-memory.dmp
memory/736-92-0x0000000002880000-0x0000000002C80000-memory.dmp
memory/736-79-0x00000000025C0000-0x0000000002609000-memory.dmp
memory/736-32-0x0000000002880000-0x0000000002C80000-memory.dmp
memory/736-77-0x000000006FFF0000-0x0000000070000000-memory.dmp
memory/2024-83-0x0000000002670000-0x0000000002A70000-memory.dmp
memory/2024-36-0x0000000002670000-0x0000000002A70000-memory.dmp
memory/2024-35-0x0000000000400000-0x000000000046F000-memory.dmp
memory/4236-99-0x000000006FFF0000-0x0000000070000000-memory.dmp
memory/4236-98-0x000000006FFF0000-0x0000000070000000-memory.dmp
memory/4236-97-0x000000006FFF0000-0x0000000070000000-memory.dmp
memory/4236-96-0x000000006FFF0000-0x0000000070000000-memory.dmp
memory/4236-95-0x000000006FFF0000-0x0000000070000000-memory.dmp
memory/4236-94-0x000000006FFF0000-0x0000000070000000-memory.dmp
memory/4236-93-0x000000006FFF0000-0x0000000070000000-memory.dmp
memory/4236-100-0x0000000001200000-0x0000000001249000-memory.dmp
memory/4236-89-0x0000000001200000-0x0000000001249000-memory.dmp