Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10_x64 -
resource
win10 -
submitted
06-08-2020 08:04
Static task
static1
Behavioral task
behavioral1
Sample
4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe
Resource
win7v200722
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe
Resource
win10
windows10_x64
0 signatures
0 seconds
General
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Target
4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe
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Size
350KB
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MD5
90c0d9bae24b7101eb934b5e4ad2e4f4
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SHA1
c9ddea45341162e1d4635da3a30a01f8e8819640
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SHA256
4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e
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SHA512
a155644217228e19e28389529ceb864c57d6ac8229e881af7ccf38e09986995d92d8bd51e548a93d165415dc7c468cf3e2bcfb57de6c5eac19e3aa5c497bc598
Score
10/10
Malware Config
Signatures
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Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\123456789.bmp" 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe -
Suspicious use of AdjustPrivilegeToken 87 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3852 wmic.exe Token: SeSecurityPrivilege 3852 wmic.exe Token: SeTakeOwnershipPrivilege 3852 wmic.exe Token: SeLoadDriverPrivilege 3852 wmic.exe Token: SeSystemProfilePrivilege 3852 wmic.exe Token: SeSystemtimePrivilege 3852 wmic.exe Token: SeProfSingleProcessPrivilege 3852 wmic.exe Token: SeIncBasePriorityPrivilege 3852 wmic.exe Token: SeCreatePagefilePrivilege 3852 wmic.exe Token: SeBackupPrivilege 3852 wmic.exe Token: SeRestorePrivilege 3852 wmic.exe Token: SeShutdownPrivilege 3852 wmic.exe Token: SeDebugPrivilege 3852 wmic.exe Token: SeSystemEnvironmentPrivilege 3852 wmic.exe Token: SeRemoteShutdownPrivilege 3852 wmic.exe Token: SeUndockPrivilege 3852 wmic.exe Token: SeManageVolumePrivilege 3852 wmic.exe Token: 33 3852 wmic.exe Token: 34 3852 wmic.exe Token: 35 3852 wmic.exe Token: 36 3852 wmic.exe Token: SeIncreaseQuotaPrivilege 3852 wmic.exe Token: SeSecurityPrivilege 3852 wmic.exe Token: SeTakeOwnershipPrivilege 3852 wmic.exe Token: SeLoadDriverPrivilege 3852 wmic.exe Token: SeSystemProfilePrivilege 3852 wmic.exe Token: SeSystemtimePrivilege 3852 wmic.exe Token: SeProfSingleProcessPrivilege 3852 wmic.exe Token: SeIncBasePriorityPrivilege 3852 wmic.exe Token: SeCreatePagefilePrivilege 3852 wmic.exe Token: SeBackupPrivilege 3852 wmic.exe Token: SeRestorePrivilege 3852 wmic.exe Token: SeShutdownPrivilege 3852 wmic.exe Token: SeDebugPrivilege 3852 wmic.exe Token: SeSystemEnvironmentPrivilege 3852 wmic.exe Token: SeRemoteShutdownPrivilege 3852 wmic.exe Token: SeUndockPrivilege 3852 wmic.exe Token: SeManageVolumePrivilege 3852 wmic.exe Token: 33 3852 wmic.exe Token: 34 3852 wmic.exe Token: 35 3852 wmic.exe Token: 36 3852 wmic.exe Token: SeBackupPrivilege 3184 vssvc.exe Token: SeRestorePrivilege 3184 vssvc.exe Token: SeAuditPrivilege 3184 vssvc.exe Token: SeIncreaseQuotaPrivilege 776 wmic.exe Token: SeSecurityPrivilege 776 wmic.exe Token: SeTakeOwnershipPrivilege 776 wmic.exe Token: SeLoadDriverPrivilege 776 wmic.exe Token: SeSystemProfilePrivilege 776 wmic.exe Token: SeSystemtimePrivilege 776 wmic.exe Token: SeProfSingleProcessPrivilege 776 wmic.exe Token: SeIncBasePriorityPrivilege 776 wmic.exe Token: SeCreatePagefilePrivilege 776 wmic.exe Token: SeBackupPrivilege 776 wmic.exe Token: SeRestorePrivilege 776 wmic.exe Token: SeShutdownPrivilege 776 wmic.exe Token: SeDebugPrivilege 776 wmic.exe Token: SeSystemEnvironmentPrivilege 776 wmic.exe Token: SeRemoteShutdownPrivilege 776 wmic.exe Token: SeUndockPrivilege 776 wmic.exe Token: SeManageVolumePrivilege 776 wmic.exe Token: 33 776 wmic.exe Token: 34 776 wmic.exe Token: 35 776 wmic.exe Token: 36 776 wmic.exe Token: SeIncreaseQuotaPrivilege 776 wmic.exe Token: SeSecurityPrivilege 776 wmic.exe Token: SeTakeOwnershipPrivilege 776 wmic.exe Token: SeLoadDriverPrivilege 776 wmic.exe Token: SeSystemProfilePrivilege 776 wmic.exe Token: SeSystemtimePrivilege 776 wmic.exe Token: SeProfSingleProcessPrivilege 776 wmic.exe Token: SeIncBasePriorityPrivilege 776 wmic.exe Token: SeCreatePagefilePrivilege 776 wmic.exe Token: SeBackupPrivilege 776 wmic.exe Token: SeRestorePrivilege 776 wmic.exe Token: SeShutdownPrivilege 776 wmic.exe Token: SeDebugPrivilege 776 wmic.exe Token: SeSystemEnvironmentPrivilege 776 wmic.exe Token: SeRemoteShutdownPrivilege 776 wmic.exe Token: SeUndockPrivilege 776 wmic.exe Token: SeManageVolumePrivilege 776 wmic.exe Token: 33 776 wmic.exe Token: 34 776 wmic.exe Token: 35 776 wmic.exe Token: 36 776 wmic.exe -
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Modifies service 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5} vssvc.exe -
Drops startup file 4 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.html 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tcye97k7j.dat 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\DECRYPT-FILES.html 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\tcye97k7j.dat 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe -
Modifies extensions of user files 5 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\ApproveSplit.tif => C:\Users\Admin\Pictures\ApproveSplit.tif.ZEYJT 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe File renamed C:\Users\Admin\Pictures\EditSync.tif => C:\Users\Admin\Pictures\EditSync.tif.PzSPEt 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe File opened for modification C:\Users\Admin\Pictures\NewTrace.tiff 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe File renamed C:\Users\Admin\Pictures\NewTrace.tiff => C:\Users\Admin\Pictures\NewTrace.tiff.PzSPEt 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe File renamed C:\Users\Admin\Pictures\ResumeGrant.raw => C:\Users\Admin\Pictures\ResumeGrant.raw.VklNVj7 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3100 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe 3100 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3100 wrote to memory of 3852 3100 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe 67 PID 3100 wrote to memory of 3852 3100 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe 67 PID 3100 wrote to memory of 776 3100 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe 72 PID 3100 wrote to memory of 776 3100 4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe 72 -
Maze
Ransomware family also known as ChaCha.
Processes
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C:\Users\Admin\AppData\Local\Temp\4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe"C:\Users\Admin\AppData\Local\Temp\4e2554b448424859b508433e6c4a043718343febc7894a849f446dd197b47d1e.exe"1⤵
- Sets desktop wallpaper using registry
- Drops startup file
- Modifies extensions of user files
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3100 -
C:\Windows\system32\wbem\wmic.exe"C:\e\tba\trb\..\..\..\Windows\p\..\system32\ydej\hiw\..\..\wbem\ndm\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3852
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C:\Windows\system32\wbem\wmic.exe"C:\vktb\io\..\..\Windows\h\rq\ffq\..\..\..\system32\yhoqi\ongt\..\..\wbem\hpi\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:776
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
- Modifies service
PID:3184