Analysis
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max time kernel
156s -
max time network
134s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
16-02-2022 22:48
Static task
static1
Behavioral task
behavioral1
Sample
91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe
Resource
win10v2004-en-20220113
General
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Target
91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe
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Size
364KB
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MD5
545bd3bec00aaa561c63c1dbc666d1ed
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SHA1
b97ef6dac862b082cb9ddd31c08d028f7cc9f54f
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SHA256
91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1
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SHA512
d6c86f53b7f65eb84afae5dcc509563dff0d68376f0cded1a6794e40180539244cf9a49a5c07e29372bf5dab0c988b63620490187605dc3d83757bbdb71e93c8
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/6d570cc8343db19a
https://mazedecrypt.top/6d570cc8343db19a
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 renamed C:\Users\Admin\Pictures\CompareApprove.crw => C:\Users\Admin\Pictures\CompareApprove.crw.vlX2m 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File renamed C:\Users\Admin\Pictures\SearchResume.tiff => C:\Users\Admin\Pictures\SearchResume.tiff.hEF3 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File renamed C:\Users\Admin\Pictures\UnregisterWait.raw => C:\Users\Admin\Pictures\UnregisterWait.raw.W6xi 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File renamed C:\Users\Admin\Pictures\ImportDismount.crw => C:\Users\Admin\Pictures\ImportDismount.crw.dp1XnQ 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Users\Admin\Pictures\SearchResume.tiff 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File renamed C:\Users\Admin\Pictures\StopSync.png => C:\Users\Admin\Pictures\StopSync.png.hEF3 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File renamed C:\Users\Admin\Pictures\SuspendAdd.png => C:\Users\Admin\Pictures\SuspendAdd.png.hEF3 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Users\Admin\Pictures\SuspendTrace.tiff 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File renamed C:\Users\Admin\Pictures\SuspendTrace.tiff => C:\Users\Admin\Pictures\SuspendTrace.tiff.W6xi 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File renamed C:\Users\Admin\Pictures\UseExport.tif => C:\Users\Admin\Pictures\UseExport.tif.G4wv 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.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 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6d570cc8343db19a.tmp 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.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\\\\111.bmp" 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe -
Drops file in Program Files directory 36 IoCs
description ioc Process File opened for modification C:\Program Files\6d570cc8343db19a.tmp 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\ConvertCompare.xlsb 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\GrantJoin.wmf 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\ResetSelect.vsdm 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\RestoreUninstall.gif 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\SearchResolve.cr2 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\CheckpointGet.M2T 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\EditCheckpoint.aiff 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\ExportRepair.3gp2 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\SetSuspend.cmd 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\6d570cc8343db19a.tmp 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\MeasureStart.inf 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\RegisterUninstall.M2V 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\SubmitStep.xlsx 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File created C:\Program Files\DECRYPT-FILES.txt 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\ConnectExpand.m4a 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\PopResume.doc 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\RestartPop.lock 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\GrantUnregister.css 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\RequestNew.fon 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\RestoreConvertTo.3gp2 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\UnprotectDisconnect.wps 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\6d570cc8343db19a.tmp 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\6d570cc8343db19a.tmp 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\DECRYPT-FILES.txt 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\AddShow.kix 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\ConvertToJoin.wax 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\DebugRepair.ex_ 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\OpenRename.001 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\CompleteSwitch.vssm 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\ConfirmStart.xps 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files\DismountUnblock.asf 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File opened for modification C:\Program Files (x86)\6d570cc8343db19a.tmp 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\DECRYPT-FILES.txt 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\DECRYPT-FILES.txt 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1532 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeBackupPrivilege 1036 vssvc.exe Token: SeRestorePrivilege 1036 vssvc.exe Token: SeAuditPrivilege 1036 vssvc.exe Token: SeIncreaseQuotaPrivilege 1976 wmic.exe Token: SeSecurityPrivilege 1976 wmic.exe Token: SeTakeOwnershipPrivilege 1976 wmic.exe Token: SeLoadDriverPrivilege 1976 wmic.exe Token: SeSystemProfilePrivilege 1976 wmic.exe Token: SeSystemtimePrivilege 1976 wmic.exe Token: SeProfSingleProcessPrivilege 1976 wmic.exe Token: SeIncBasePriorityPrivilege 1976 wmic.exe Token: SeCreatePagefilePrivilege 1976 wmic.exe Token: SeBackupPrivilege 1976 wmic.exe Token: SeRestorePrivilege 1976 wmic.exe Token: SeShutdownPrivilege 1976 wmic.exe Token: SeDebugPrivilege 1976 wmic.exe Token: SeSystemEnvironmentPrivilege 1976 wmic.exe Token: SeRemoteShutdownPrivilege 1976 wmic.exe Token: SeUndockPrivilege 1976 wmic.exe Token: SeManageVolumePrivilege 1976 wmic.exe Token: 33 1976 wmic.exe Token: 34 1976 wmic.exe Token: 35 1976 wmic.exe Token: SeIncreaseQuotaPrivilege 1976 wmic.exe Token: SeSecurityPrivilege 1976 wmic.exe Token: SeTakeOwnershipPrivilege 1976 wmic.exe Token: SeLoadDriverPrivilege 1976 wmic.exe Token: SeSystemProfilePrivilege 1976 wmic.exe Token: SeSystemtimePrivilege 1976 wmic.exe Token: SeProfSingleProcessPrivilege 1976 wmic.exe Token: SeIncBasePriorityPrivilege 1976 wmic.exe Token: SeCreatePagefilePrivilege 1976 wmic.exe Token: SeBackupPrivilege 1976 wmic.exe Token: SeRestorePrivilege 1976 wmic.exe Token: SeShutdownPrivilege 1976 wmic.exe Token: SeDebugPrivilege 1976 wmic.exe Token: SeSystemEnvironmentPrivilege 1976 wmic.exe Token: SeRemoteShutdownPrivilege 1976 wmic.exe Token: SeUndockPrivilege 1976 wmic.exe Token: SeManageVolumePrivilege 1976 wmic.exe Token: 33 1976 wmic.exe Token: 34 1976 wmic.exe Token: 35 1976 wmic.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1532 wrote to memory of 1976 1532 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe 33 PID 1532 wrote to memory of 1976 1532 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe 33 PID 1532 wrote to memory of 1976 1532 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe 33 PID 1532 wrote to memory of 1976 1532 91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.exe"C:\Users\Admin\AppData\Local\Temp\91424ac700abaf7d7a690bdeaba2f670c8383f11f15b2b412a52ec4260a12dc1.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:1532 -
C:\Windows\system32\wbem\wmic.exe"C:\mhnjb\mutw\gn\..\..\..\Windows\oso\u\..\..\system32\jq\..\wbem\kdhk\bvsio\vblfr\..\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1976
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1036
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵PID:1692