Analysis
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max time kernel
157s -
max time network
174s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
16-02-2022 22:39
Static task
static1
Behavioral task
behavioral1
Sample
c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe
Resource
win10v2004-en-20220112
General
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Target
c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe
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Size
1.1MB
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MD5
a02c0a874f52cb3e29c1e3639e9c451b
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SHA1
b97680618326582b01e57435dc04f0e93d94e6a7
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SHA256
c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9
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SHA512
5da3eb618ea0f8eeb18a3db98639b74d9b091311c93623c65573f96ddb579018a358463a5a1229b8c950770472f1d1e5808a6db1f2769e0925f6ab42eb312573
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/6d570cc8cb3348b8
https://mazedecrypt.top/6d570cc8cb3348b8
Signatures
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Maze
Ransomware family also known as ChaCha.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies extensions of user files 10 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\SuspendTrace.tiff c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File renamed C:\Users\Admin\Pictures\SuspendTrace.tiff => C:\Users\Admin\Pictures\SuspendTrace.tiff.Hi6QGv c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File renamed C:\Users\Admin\Pictures\UseExport.tif => C:\Users\Admin\Pictures\UseExport.tif.YWqzpcz c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File renamed C:\Users\Admin\Pictures\SuspendAdd.png => C:\Users\Admin\Pictures\SuspendAdd.png.Hi6QGv c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File renamed C:\Users\Admin\Pictures\UnregisterWait.raw => C:\Users\Admin\Pictures\UnregisterWait.raw.YWqzpcz c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File renamed C:\Users\Admin\Pictures\CompareApprove.crw => C:\Users\Admin\Pictures\CompareApprove.crw.ZvXlL c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File renamed C:\Users\Admin\Pictures\ImportDismount.crw => C:\Users\Admin\Pictures\ImportDismount.crw.DNoBv c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Users\Admin\Pictures\SearchResume.tiff c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File renamed C:\Users\Admin\Pictures\SearchResume.tiff => C:\Users\Admin\Pictures\SearchResume.tiff.Hi6QGv c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File renamed C:\Users\Admin\Pictures\StopSync.png => C:\Users\Admin\Pictures\StopSync.png.Hi6QGv c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.txt c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6d570cc8cb3348b8.tmp c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe -
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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Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\000.bmp" c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe -
Drops file in Program Files directory 36 IoCs
description ioc Process File opened for modification C:\Program Files\RegisterUninstall.M2V c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\UnprotectDisconnect.wps c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\DECRYPT-FILES.txt c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File created C:\Program Files\DECRYPT-FILES.txt c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\ConvertToJoin.wax c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\SubmitStep.xlsx c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\6d570cc8cb3348b8.tmp c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\DebugRepair.ex_ c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\OpenRename.001 c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\RestartPop.lock c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\ConnectExpand.m4a c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\PopResume.doc c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\SearchResolve.cr2 c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\DECRYPT-FILES.txt c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\DECRYPT-FILES.txt c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\CompleteSwitch.vssm c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\DismountUnblock.asf c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\ExportRepair.3gp2 c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\RequestNew.fon c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\ResetSelect.vsdm c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\SetSuspend.cmd c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\EditCheckpoint.aiff c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\GrantJoin.wmf c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\AddShow.kix c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\6d570cc8cb3348b8.tmp c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\RestoreConvertTo.3gp2 c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\RestoreUninstall.gif c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\6d570cc8cb3348b8.tmp c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\CheckpointGet.M2T c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\ConfirmStart.xps c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\ConvertCompare.xlsb c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\GrantUnregister.css c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files\MeasureStart.inf c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files (x86)\6d570cc8cb3348b8.tmp c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\6d570cc8cb3348b8.tmp c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1564 c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeBackupPrivilege 1496 vssvc.exe Token: SeRestorePrivilege 1496 vssvc.exe Token: SeAuditPrivilege 1496 vssvc.exe Token: SeIncreaseQuotaPrivilege 1968 wmic.exe Token: SeSecurityPrivilege 1968 wmic.exe Token: SeTakeOwnershipPrivilege 1968 wmic.exe Token: SeLoadDriverPrivilege 1968 wmic.exe Token: SeSystemProfilePrivilege 1968 wmic.exe Token: SeSystemtimePrivilege 1968 wmic.exe Token: SeProfSingleProcessPrivilege 1968 wmic.exe Token: SeIncBasePriorityPrivilege 1968 wmic.exe Token: SeCreatePagefilePrivilege 1968 wmic.exe Token: SeBackupPrivilege 1968 wmic.exe Token: SeRestorePrivilege 1968 wmic.exe Token: SeShutdownPrivilege 1968 wmic.exe Token: SeDebugPrivilege 1968 wmic.exe Token: SeSystemEnvironmentPrivilege 1968 wmic.exe Token: SeRemoteShutdownPrivilege 1968 wmic.exe Token: SeUndockPrivilege 1968 wmic.exe Token: SeManageVolumePrivilege 1968 wmic.exe Token: 33 1968 wmic.exe Token: 34 1968 wmic.exe Token: 35 1968 wmic.exe Token: SeIncreaseQuotaPrivilege 1968 wmic.exe Token: SeSecurityPrivilege 1968 wmic.exe Token: SeTakeOwnershipPrivilege 1968 wmic.exe Token: SeLoadDriverPrivilege 1968 wmic.exe Token: SeSystemProfilePrivilege 1968 wmic.exe Token: SeSystemtimePrivilege 1968 wmic.exe Token: SeProfSingleProcessPrivilege 1968 wmic.exe Token: SeIncBasePriorityPrivilege 1968 wmic.exe Token: SeCreatePagefilePrivilege 1968 wmic.exe Token: SeBackupPrivilege 1968 wmic.exe Token: SeRestorePrivilege 1968 wmic.exe Token: SeShutdownPrivilege 1968 wmic.exe Token: SeDebugPrivilege 1968 wmic.exe Token: SeSystemEnvironmentPrivilege 1968 wmic.exe Token: SeRemoteShutdownPrivilege 1968 wmic.exe Token: SeUndockPrivilege 1968 wmic.exe Token: SeManageVolumePrivilege 1968 wmic.exe Token: 33 1968 wmic.exe Token: 34 1968 wmic.exe Token: 35 1968 wmic.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1564 wrote to memory of 1968 1564 c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe 33 PID 1564 wrote to memory of 1968 1564 c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe 33 PID 1564 wrote to memory of 1968 1564 c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe 33 PID 1564 wrote to memory of 1968 1564 c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe"C:\Users\Admin\AppData\Local\Temp\c1142340db4f1f423fc1cce14e657dd5861c9eb59788dec6d4c54ea227a437b9.exe"1⤵
- Modifies extensions of user files
- Drops startup file
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1564 -
C:\Windows\system32\wbem\wmic.exe"C:\p\ogp\..\..\Windows\eadd\yq\m\..\..\..\system32\krx\n\bgwnt\..\..\..\wbem\iyei\ytyo\erdj\..\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1968
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1496
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵PID:1600