Analysis
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max time kernel
151s -
max time network
145s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
07-07-2022 22:47
Static task
static1
Behavioral task
behavioral1
Sample
4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe
Resource
win7-20220414-en
General
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Target
4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe
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Size
197KB
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MD5
a8c89254b01ab54875c4e644d3859084
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SHA1
0c0d2f5ccdb2670833e8455955711cccc9234234
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SHA256
4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0
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SHA512
1b9a96855130b7a89426bf0c3ceb2f0dfe4e581a51668d01cd7777be10f45824a4046e753c8168bdcb976f3e52f52d675a8073f699352accd06cffadb9a484b4
Malware Config
Signatures
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Modifies firewall policy service 2 TTPs 4 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile explorer.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" explorer.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\PublicProfile explorer.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\PublicProfile\EnableFirewall = "0" explorer.exe -
Sets file execution options in registry 2 TTPs 4 IoCs
Processes:
4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exeexplorer.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\wk3s5339q.exe 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\wk3s5339q.exe\DisableExceptionChainValidation 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe\Debugger = "oap.exe" explorer.exe -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
explorer.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorer.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Skype = "C:\\ProgramData\\Skype\\wk3s5339q.exe" explorer.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\Skype = "\"C:\\ProgramData\\Skype\\wk3s5339q.exe\"" explorer.exe -
Processes:
4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 9 IoCs
Processes:
4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exeexplorer.exepid process 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe 1288 explorer.exe 1288 explorer.exe 1288 explorer.exe 1288 explorer.exe 1288 explorer.exe 1288 explorer.exe 1288 explorer.exe 1288 explorer.exe -
Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exeexplorer.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString explorer.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
Processes:
explorer.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer explorer.exe -
Modifies Internet Explorer Protected Mode 1 TTPs 4 IoCs
Processes:
explorer.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3" explorer.exe -
Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
Processes:
explorer.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1" explorer.exe -
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main explorer.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
explorer.exepid process 1288 explorer.exe 1288 explorer.exe 1288 explorer.exe 1288 explorer.exe 1288 explorer.exe 1288 explorer.exe 1288 explorer.exe 1288 explorer.exe 1288 explorer.exe -
Suspicious behavior: MapViewOfSection 5 IoCs
Processes:
4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exeexplorer.exepid process 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe 1288 explorer.exe 1288 explorer.exe 1288 explorer.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exepid process 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe -
Suspicious use of AdjustPrivilegeToken 28 IoCs
Processes:
4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exeexplorer.exedescription pid process Token: SeDebugPrivilege 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Token: SeRestorePrivilege 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Token: SeBackupPrivilege 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Token: SeLoadDriverPrivilege 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Token: SeCreatePagefilePrivilege 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Token: SeShutdownPrivilege 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Token: SeTakeOwnershipPrivilege 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Token: SeChangeNotifyPrivilege 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Token: SeCreateTokenPrivilege 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Token: SeMachineAccountPrivilege 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Token: SeSecurityPrivilege 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Token: SeAssignPrimaryTokenPrivilege 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Token: SeCreateGlobalPrivilege 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Token: 33 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe Token: SeDebugPrivilege 1288 explorer.exe Token: SeRestorePrivilege 1288 explorer.exe Token: SeBackupPrivilege 1288 explorer.exe Token: SeLoadDriverPrivilege 1288 explorer.exe Token: SeCreatePagefilePrivilege 1288 explorer.exe Token: SeShutdownPrivilege 1288 explorer.exe Token: SeTakeOwnershipPrivilege 1288 explorer.exe Token: SeChangeNotifyPrivilege 1288 explorer.exe Token: SeCreateTokenPrivilege 1288 explorer.exe Token: SeMachineAccountPrivilege 1288 explorer.exe Token: SeSecurityPrivilege 1288 explorer.exe Token: SeAssignPrimaryTokenPrivilege 1288 explorer.exe Token: SeCreateGlobalPrivilege 1288 explorer.exe Token: 33 1288 explorer.exe -
Suspicious use of WriteProcessMemory 25 IoCs
Processes:
4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exeexplorer.exedescription pid process target process PID 1364 wrote to memory of 1288 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe explorer.exe PID 1364 wrote to memory of 1288 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe explorer.exe PID 1364 wrote to memory of 1288 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe explorer.exe PID 1364 wrote to memory of 1288 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe explorer.exe PID 1364 wrote to memory of 1288 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe explorer.exe PID 1364 wrote to memory of 1288 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe explorer.exe PID 1364 wrote to memory of 1288 1364 4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe explorer.exe PID 1288 wrote to memory of 1172 1288 explorer.exe Dwm.exe PID 1288 wrote to memory of 1172 1288 explorer.exe Dwm.exe PID 1288 wrote to memory of 1172 1288 explorer.exe Dwm.exe PID 1288 wrote to memory of 1172 1288 explorer.exe Dwm.exe PID 1288 wrote to memory of 1172 1288 explorer.exe Dwm.exe PID 1288 wrote to memory of 1172 1288 explorer.exe Dwm.exe PID 1288 wrote to memory of 1204 1288 explorer.exe Explorer.EXE PID 1288 wrote to memory of 1204 1288 explorer.exe Explorer.EXE PID 1288 wrote to memory of 1204 1288 explorer.exe Explorer.EXE PID 1288 wrote to memory of 1204 1288 explorer.exe Explorer.EXE PID 1288 wrote to memory of 1204 1288 explorer.exe Explorer.EXE PID 1288 wrote to memory of 1204 1288 explorer.exe Explorer.EXE PID 1288 wrote to memory of 872 1288 explorer.exe DllHost.exe PID 1288 wrote to memory of 872 1288 explorer.exe DllHost.exe PID 1288 wrote to memory of 872 1288 explorer.exe DllHost.exe PID 1288 wrote to memory of 872 1288 explorer.exe DllHost.exe PID 1288 wrote to memory of 872 1288 explorer.exe DllHost.exe PID 1288 wrote to memory of 872 1288 explorer.exe DllHost.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1204
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C:\Users\Admin\AppData\Local\Temp\4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe"C:\Users\Admin\AppData\Local\Temp\4377629288a2b749204e03b5d411742460d1dc7c91dbc26204858b8f01bbd6e0.exe"2⤵
- Sets file execution options in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1364 -
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe3⤵
- Modifies firewall policy service
- Sets file execution options in registry
- Checks BIOS information in registry
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Enumerates system info in registry
- Modifies Internet Explorer Protected Mode
- Modifies Internet Explorer Protected Mode Banner
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1288
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C:\Windows\system32\Dwm.exe"C:\Windows\system32\Dwm.exe"1⤵PID:1172
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵PID:872