Analysis
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max time kernel
143s -
max time network
155s -
platform
windows7_x64 -
resource
win7 -
submitted
24-06-2020 13:14
Static task
static1
Behavioral task
behavioral1
Sample
f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe
Resource
win7
Behavioral task
behavioral2
Sample
f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe
Resource
win10
General
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Target
f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe
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Size
365KB
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MD5
979723e1ba053b0c3470314471ab99d3
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SHA1
847f098bb3f7a6747acb28ebfa2b8491134b6f6c
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SHA256
f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956
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SHA512
a0a51bf6d9941c0ae9cfd917b84c509bd72c6c6f86281ee4f0fde52c5cd331a5e05414685f6f868037206410e054a1e10879a06f416dff96d1f3d770bd196a8b
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/86ee096eb4b38e4a
https://mazedecrypt.top/86ee096eb4b38e4a
Signatures
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Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 336 f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 336 wrote to memory of 1800 336 f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe 28 PID 336 wrote to memory of 1800 336 f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe 28 PID 336 wrote to memory of 1800 336 f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe 28 PID 336 wrote to memory of 1800 336 f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe 28 -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\000.bmp" f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe -
Maze
Ransomware family also known as ChaCha.
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Drops startup file 4 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.txt f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\86ee096eb4b38e4a.tmp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\DECRYPT-FILES.txt f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\86ee096eb4b38e4a.tmp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe -
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeBackupPrivilege 1464 vssvc.exe Token: SeRestorePrivilege 1464 vssvc.exe Token: SeAuditPrivilege 1464 vssvc.exe Token: SeIncreaseQuotaPrivilege 1800 wmic.exe Token: SeSecurityPrivilege 1800 wmic.exe Token: SeTakeOwnershipPrivilege 1800 wmic.exe Token: SeLoadDriverPrivilege 1800 wmic.exe Token: SeSystemProfilePrivilege 1800 wmic.exe Token: SeSystemtimePrivilege 1800 wmic.exe Token: SeProfSingleProcessPrivilege 1800 wmic.exe Token: SeIncBasePriorityPrivilege 1800 wmic.exe Token: SeCreatePagefilePrivilege 1800 wmic.exe Token: SeBackupPrivilege 1800 wmic.exe Token: SeRestorePrivilege 1800 wmic.exe Token: SeShutdownPrivilege 1800 wmic.exe Token: SeDebugPrivilege 1800 wmic.exe Token: SeSystemEnvironmentPrivilege 1800 wmic.exe Token: SeRemoteShutdownPrivilege 1800 wmic.exe Token: SeUndockPrivilege 1800 wmic.exe Token: SeManageVolumePrivilege 1800 wmic.exe Token: 33 1800 wmic.exe Token: 34 1800 wmic.exe Token: 35 1800 wmic.exe Token: SeIncreaseQuotaPrivilege 1800 wmic.exe Token: SeSecurityPrivilege 1800 wmic.exe Token: SeTakeOwnershipPrivilege 1800 wmic.exe Token: SeLoadDriverPrivilege 1800 wmic.exe Token: SeSystemProfilePrivilege 1800 wmic.exe Token: SeSystemtimePrivilege 1800 wmic.exe Token: SeProfSingleProcessPrivilege 1800 wmic.exe Token: SeIncBasePriorityPrivilege 1800 wmic.exe Token: SeCreatePagefilePrivilege 1800 wmic.exe Token: SeBackupPrivilege 1800 wmic.exe Token: SeRestorePrivilege 1800 wmic.exe Token: SeShutdownPrivilege 1800 wmic.exe Token: SeDebugPrivilege 1800 wmic.exe Token: SeSystemEnvironmentPrivilege 1800 wmic.exe Token: SeRemoteShutdownPrivilege 1800 wmic.exe Token: SeUndockPrivilege 1800 wmic.exe Token: SeManageVolumePrivilege 1800 wmic.exe Token: 33 1800 wmic.exe Token: 34 1800 wmic.exe Token: 35 1800 wmic.exe -
Modifies service 2 TTPs 5 IoCs
description ioc Process 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\Registry Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5} vssvc.exe -
Drops file in Program Files directory 29 IoCs
description ioc Process File opened for modification C:\Program Files\ProtectUnblock.xps f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\Microsoft SQL Server Compact Edition\86ee096eb4b38e4a.tmp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\SaveSelect.cab f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\SyncSubmit.bmp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\Microsoft SQL Server Compact Edition\v3.5\Desktop\86ee096eb4b38e4a.tmp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files (x86)\86ee096eb4b38e4a.tmp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\86ee096eb4b38e4a.tmp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\AddGet.001 f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\ClearRevoke.edrwx f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\ReceivePush.m4a f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\AssertGrant.ico f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\EnterMove.ps1xml f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\WatchSave.rtf f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\AssertOpen.cab f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\ClearDebug.AAC f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\CloseUnblock.tiff f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\DisconnectRevoke.docm f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\HideExport.pptm f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\OutOptimize.jfif f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\AddApprove.au3 f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\InvokeConvertFrom.3gp2 f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File created C:\Program Files\Microsoft SQL Server Compact Edition\v3.5\DECRYPT-FILES.txt f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\StartUnregister.mp4v f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File created C:\Program Files\DECRYPT-FILES.txt f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\ClearOpen.inf f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File created C:\Program Files\Microsoft SQL Server Compact Edition\DECRYPT-FILES.txt f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\Microsoft SQL Server Compact Edition\v3.5\86ee096eb4b38e4a.tmp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File created C:\Program Files\Microsoft SQL Server Compact Edition\v3.5\Desktop\DECRYPT-FILES.txt f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
Processes
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C:\Users\Admin\AppData\Local\Temp\f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe"C:\Users\Admin\AppData\Local\Temp\f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Sets desktop wallpaper using registry
- Drops startup file
- Drops file in Program Files directory
PID:336 -
C:\Windows\system32\wbem\wmic.exe"C:\jgnvy\..\Windows\aimh\i\l\..\..\..\system32\q\xt\..\..\wbem\ewvq\tqwr\hmr\..\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1800
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
- Modifies service
PID:1464
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵PID:1748