Analysis
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max time kernel
162s -
max time network
184s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
16-02-2022 23:10
Static task
static1
Behavioral task
behavioral1
Sample
1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe
Resource
win10v2004-en-20220113
General
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Target
1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe
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Size
739KB
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MD5
b40a9eda37493425782bda4a3d9dad58
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SHA1
bc8285e6cc6743a2f4a715f338b7d0bc6f327528
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SHA256
1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78
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SHA512
43d42391e7a1c90afc60bdde21e2903676787cf49ba22b93134c67fd9136cf99a47e341a6987e9827582294b6de2c285902817763f126b2aeae2607fa7d11df4
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/892e099ca10b6bc9
https://mazedecrypt.top/892e099ca10b6bc9
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 4 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\ExpandUnpublish.tif => C:\Users\Admin\Pictures\ExpandUnpublish.tif.TUQF 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File renamed C:\Users\Admin\Pictures\NewConnect.png => C:\Users\Admin\Pictures\NewConnect.png.xbUwC 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File renamed C:\Users\Admin\Pictures\RequestCopy.png => C:\Users\Admin\Pictures\RequestCopy.png.w1fkt 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File renamed C:\Users\Admin\Pictures\SyncRead.raw => C:\Users\Admin\Pictures\SyncRead.raw.fN5U5 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.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 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\892e099ca10b6bc9.tmp 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.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" 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe -
Drops file in Program Files directory 42 IoCs
description ioc Process File opened for modification C:\Program Files\DenyFind.jtx 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\HideSwitch.mp3 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\MountExpand.vstx 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\RevokeConvertFrom.dib 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\SkipPop.wpl 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\DECRYPT-FILES.txt 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File created C:\Program Files\DECRYPT-FILES.txt 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\ConvertFromMove.001 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\ConvertFromRestart.wpl 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\MountUninstall.ex_ 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\RegisterExpand.001 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\SubmitTest.php 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\892e099ca10b6bc9.tmp 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\CopySearch.mov 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\DisconnectPop.mpeg3 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\UsePublish.search-ms 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\DECRYPT-FILES.txt 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\892e099ca10b6bc9.tmp 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\DECRYPT-FILES.txt 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\JoinImport.wav 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\RevokeInvoke.dib 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\SaveRepair.au3 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\892e099ca10b6bc9.tmp 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\DenyRevoke.7z 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\NewResume.wm 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\RemoveClear.vsd 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\SaveSend.xlt 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\SetExpand.odt 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\StepSelect.cfg 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\CompletePush.txt 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\SendWatch.odt 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\FormatSearch.pptx 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\RepairReset.gif 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\RestartOpen.vsdm 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files (x86)\892e099ca10b6bc9.tmp 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\892e099ca10b6bc9.tmp 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\AssertBlock.M2T 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\ExportSkip.cab 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\ReceiveHide.svg 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\ResolveInitialize.vssm 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe File opened for modification C:\Program Files\UninstallRename.rm 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1084 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeBackupPrivilege 580 vssvc.exe Token: SeRestorePrivilege 580 vssvc.exe Token: SeAuditPrivilege 580 vssvc.exe Token: SeIncreaseQuotaPrivilege 836 wmic.exe Token: SeSecurityPrivilege 836 wmic.exe Token: SeTakeOwnershipPrivilege 836 wmic.exe Token: SeLoadDriverPrivilege 836 wmic.exe Token: SeSystemProfilePrivilege 836 wmic.exe Token: SeSystemtimePrivilege 836 wmic.exe Token: SeProfSingleProcessPrivilege 836 wmic.exe Token: SeIncBasePriorityPrivilege 836 wmic.exe Token: SeCreatePagefilePrivilege 836 wmic.exe Token: SeBackupPrivilege 836 wmic.exe Token: SeRestorePrivilege 836 wmic.exe Token: SeShutdownPrivilege 836 wmic.exe Token: SeDebugPrivilege 836 wmic.exe Token: SeSystemEnvironmentPrivilege 836 wmic.exe Token: SeRemoteShutdownPrivilege 836 wmic.exe Token: SeUndockPrivilege 836 wmic.exe Token: SeManageVolumePrivilege 836 wmic.exe Token: 33 836 wmic.exe Token: 34 836 wmic.exe Token: 35 836 wmic.exe Token: SeIncreaseQuotaPrivilege 836 wmic.exe Token: SeSecurityPrivilege 836 wmic.exe Token: SeTakeOwnershipPrivilege 836 wmic.exe Token: SeLoadDriverPrivilege 836 wmic.exe Token: SeSystemProfilePrivilege 836 wmic.exe Token: SeSystemtimePrivilege 836 wmic.exe Token: SeProfSingleProcessPrivilege 836 wmic.exe Token: SeIncBasePriorityPrivilege 836 wmic.exe Token: SeCreatePagefilePrivilege 836 wmic.exe Token: SeBackupPrivilege 836 wmic.exe Token: SeRestorePrivilege 836 wmic.exe Token: SeShutdownPrivilege 836 wmic.exe Token: SeDebugPrivilege 836 wmic.exe Token: SeSystemEnvironmentPrivilege 836 wmic.exe Token: SeRemoteShutdownPrivilege 836 wmic.exe Token: SeUndockPrivilege 836 wmic.exe Token: SeManageVolumePrivilege 836 wmic.exe Token: 33 836 wmic.exe Token: 34 836 wmic.exe Token: 35 836 wmic.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1084 wrote to memory of 836 1084 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe 35 PID 1084 wrote to memory of 836 1084 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe 35 PID 1084 wrote to memory of 836 1084 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe 35 PID 1084 wrote to memory of 836 1084 1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.exe"C:\Users\Admin\AppData\Local\Temp\1161b030293e58d15b6a6a814a61a6432cf2c98ce9d156986157b432f3ebcf78.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:1084 -
C:\Windows\system32\wbem\wmic.exe"C:\s\xglq\gk\..\..\..\Windows\n\..\system32\wvh\vuodp\vsng\..\..\..\wbem\pr\lxbwa\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:836
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:580
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵PID:1608