Analysis
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max time kernel
158s -
max time network
180s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
16-02-2022 22:38
Static task
static1
Behavioral task
behavioral1
Sample
cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe
Resource
win10v2004-en-20220113
General
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Target
cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe
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Size
751KB
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MD5
46b98ee908d08f15137e509e5e69db1b
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SHA1
73fbdd10619757fff0193b84fff54807e56afa58
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SHA256
cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d
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SHA512
62cc5786d870ecf65aadd215efd73eb76455a3aaaa416b0ccd0eca5b4b0d0f39f5376a0228b209516ba9af6ce633646fc827e25f8dfe64a0566975f5eedfddbb
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/892e099c76d336a5
https://mazedecrypt.top/892e099c76d336a5
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 16 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\MeasureStep.raw => C:\Users\Admin\Pictures\MeasureStep.raw.loo0pI cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Users\Admin\Pictures\ResolveExit.tiff cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Users\Admin\Pictures\StopSet.tiff cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File renamed C:\Users\Admin\Pictures\UnlockCheckpoint.tiff => C:\Users\Admin\Pictures\UnlockCheckpoint.tiff.KPUTVQM cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Users\Admin\Pictures\CompleteRestart.tiff cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File renamed C:\Users\Admin\Pictures\PushRemove.tiff => C:\Users\Admin\Pictures\PushRemove.tiff.loo0pI cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File renamed C:\Users\Admin\Pictures\StopSet.tiff => C:\Users\Admin\Pictures\StopSet.tiff.TuMgEhf cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Users\Admin\Pictures\UnlockCheckpoint.tiff cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File renamed C:\Users\Admin\Pictures\WatchSet.tiff => C:\Users\Admin\Pictures\WatchSet.tiff.IQSv cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Users\Admin\Pictures\PushRemove.tiff cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File renamed C:\Users\Admin\Pictures\ResolveExit.tiff => C:\Users\Admin\Pictures\ResolveExit.tiff.TuMgEhf cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Users\Admin\Pictures\WatchSet.tiff cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File renamed C:\Users\Admin\Pictures\BackupResolve.png => C:\Users\Admin\Pictures\BackupResolve.png.hNMc1 cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File renamed C:\Users\Admin\Pictures\InstallConvertTo.raw => C:\Users\Admin\Pictures\InstallConvertTo.raw.loo0pI cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File renamed C:\Users\Admin\Pictures\JoinDeny.crw => C:\Users\Admin\Pictures\JoinDeny.crw.loo0pI cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File renamed C:\Users\Admin\Pictures\CompleteRestart.tiff => C:\Users\Admin\Pictures\CompleteRestart.tiff.EBeSa cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.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 cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\892e099c76d336a5.tmp cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.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" cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe -
Drops file in Program Files directory 46 IoCs
description ioc Process File opened for modification C:\Program Files\PublishDisable.lock cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\RevokeSet.m3u cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\UnblockBlock.vstm cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\WaitLimit.mpeg2 cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\DECRYPT-FILES.txt cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\EnterRedo.M2V cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\OpenInstall.xla cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\PushStart.mp4 cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\SuspendSend.vb cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\892e099c76d336a5.tmp cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\ProtectUninstall.otf cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\RepairEdit.xlsb cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files (x86)\892e099c76d336a5.tmp cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\892e099c76d336a5.tmp cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File created C:\Program Files\DECRYPT-FILES.txt cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\UndoSync.mht cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\PushUse.jfif cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\EnterInvoke.m1v cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\ExitSubmit.AAC cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\LockProtect.mp3 cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\RestoreInstall.fon cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\ResumeGet.emz cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\ResumeSend.crw cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\SearchUnregister.M2V cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\ConnectMove.ppsm cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\SetEnable.snd cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\StopCheckpoint.pcx cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\TestApprove.asf cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\TestLimit.pptx cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\892e099c76d336a5.tmp cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\SendConnect.midi cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\EnterStart.dot cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\SkipConnect.php cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\892e099c76d336a5.tmp cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\AssertInvoke.vdw cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\FindImport.AAC cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\JoinRemove.hta cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\ConvertToMerge.ram cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\AssertUpdate.fon cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\StepProtect.ps1 cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\TestUse.svgz cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\UnprotectJoin.MOD cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\DECRYPT-FILES.txt cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\DECRYPT-FILES.txt cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe File opened for modification C:\Program Files\ApproveRead.vssm cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1588 cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
description pid Process Token: SeBackupPrivilege 1060 vssvc.exe Token: SeRestorePrivilege 1060 vssvc.exe Token: SeAuditPrivilege 1060 vssvc.exe Token: SeIncreaseQuotaPrivilege 1580 wmic.exe Token: SeSecurityPrivilege 1580 wmic.exe Token: SeTakeOwnershipPrivilege 1580 wmic.exe Token: SeLoadDriverPrivilege 1580 wmic.exe Token: SeSystemProfilePrivilege 1580 wmic.exe Token: SeSystemtimePrivilege 1580 wmic.exe Token: SeProfSingleProcessPrivilege 1580 wmic.exe Token: SeIncBasePriorityPrivilege 1580 wmic.exe Token: SeCreatePagefilePrivilege 1580 wmic.exe Token: SeBackupPrivilege 1580 wmic.exe Token: SeRestorePrivilege 1580 wmic.exe Token: SeShutdownPrivilege 1580 wmic.exe Token: SeDebugPrivilege 1580 wmic.exe Token: SeSystemEnvironmentPrivilege 1580 wmic.exe Token: SeRemoteShutdownPrivilege 1580 wmic.exe Token: SeUndockPrivilege 1580 wmic.exe Token: SeManageVolumePrivilege 1580 wmic.exe Token: 33 1580 wmic.exe Token: 34 1580 wmic.exe Token: 35 1580 wmic.exe Token: SeIncreaseQuotaPrivilege 1580 wmic.exe Token: SeSecurityPrivilege 1580 wmic.exe Token: SeTakeOwnershipPrivilege 1580 wmic.exe Token: SeLoadDriverPrivilege 1580 wmic.exe Token: SeSystemProfilePrivilege 1580 wmic.exe Token: SeSystemtimePrivilege 1580 wmic.exe Token: SeProfSingleProcessPrivilege 1580 wmic.exe Token: SeIncBasePriorityPrivilege 1580 wmic.exe Token: SeCreatePagefilePrivilege 1580 wmic.exe Token: SeBackupPrivilege 1580 wmic.exe Token: SeRestorePrivilege 1580 wmic.exe Token: SeShutdownPrivilege 1580 wmic.exe Token: SeDebugPrivilege 1580 wmic.exe Token: SeSystemEnvironmentPrivilege 1580 wmic.exe Token: SeRemoteShutdownPrivilege 1580 wmic.exe Token: SeUndockPrivilege 1580 wmic.exe Token: SeManageVolumePrivilege 1580 wmic.exe Token: 33 1580 wmic.exe Token: 34 1580 wmic.exe Token: 35 1580 wmic.exe Token: 33 1852 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1852 AUDIODG.EXE Token: 33 1852 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1852 AUDIODG.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1588 wrote to memory of 1580 1588 cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe 35 PID 1588 wrote to memory of 1580 1588 cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe 35 PID 1588 wrote to memory of 1580 1588 cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe 35 PID 1588 wrote to memory of 1580 1588 cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.exe"C:\Users\Admin\AppData\Local\Temp\cdcce11615f46852e81ddd770c55869bbc92befdf38d82024878f2e0520b5a2d.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:1588 -
C:\Windows\system32\wbem\wmic.exe"C:\wxwxq\..\Windows\juro\..\system32\g\gs\..\..\wbem\ag\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1580
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1060
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵PID:1404
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x5141⤵
- Suspicious use of AdjustPrivilegeToken
PID:1852