Analysis
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max time kernel
149s -
max time network
148s -
platform
windows7_x64 -
resource
win7 -
submitted
24-06-2020 14:44
Static task
static1
Behavioral task
behavioral1
Sample
f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe
Resource
win7
Behavioral task
behavioral2
Sample
f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe
Resource
win10v200430
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/86ee096e2d86666c
https://mazedecrypt.top/86ee096e2d86666c
Signatures
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Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\000.bmp" 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 280 vssvc.exe Token: SeRestorePrivilege 280 vssvc.exe Token: SeAuditPrivilege 280 vssvc.exe Token: SeIncreaseQuotaPrivilege 1788 wmic.exe Token: SeSecurityPrivilege 1788 wmic.exe Token: SeTakeOwnershipPrivilege 1788 wmic.exe Token: SeLoadDriverPrivilege 1788 wmic.exe Token: SeSystemProfilePrivilege 1788 wmic.exe Token: SeSystemtimePrivilege 1788 wmic.exe Token: SeProfSingleProcessPrivilege 1788 wmic.exe Token: SeIncBasePriorityPrivilege 1788 wmic.exe Token: SeCreatePagefilePrivilege 1788 wmic.exe Token: SeBackupPrivilege 1788 wmic.exe Token: SeRestorePrivilege 1788 wmic.exe Token: SeShutdownPrivilege 1788 wmic.exe Token: SeDebugPrivilege 1788 wmic.exe Token: SeSystemEnvironmentPrivilege 1788 wmic.exe Token: SeRemoteShutdownPrivilege 1788 wmic.exe Token: SeUndockPrivilege 1788 wmic.exe Token: SeManageVolumePrivilege 1788 wmic.exe Token: 33 1788 wmic.exe Token: 34 1788 wmic.exe Token: 35 1788 wmic.exe Token: SeIncreaseQuotaPrivilege 1788 wmic.exe Token: SeSecurityPrivilege 1788 wmic.exe Token: SeTakeOwnershipPrivilege 1788 wmic.exe Token: SeLoadDriverPrivilege 1788 wmic.exe Token: SeSystemProfilePrivilege 1788 wmic.exe Token: SeSystemtimePrivilege 1788 wmic.exe Token: SeProfSingleProcessPrivilege 1788 wmic.exe Token: SeIncBasePriorityPrivilege 1788 wmic.exe Token: SeCreatePagefilePrivilege 1788 wmic.exe Token: SeBackupPrivilege 1788 wmic.exe Token: SeRestorePrivilege 1788 wmic.exe Token: SeShutdownPrivilege 1788 wmic.exe Token: SeDebugPrivilege 1788 wmic.exe Token: SeSystemEnvironmentPrivilege 1788 wmic.exe Token: SeRemoteShutdownPrivilege 1788 wmic.exe Token: SeUndockPrivilege 1788 wmic.exe Token: SeManageVolumePrivilege 1788 wmic.exe Token: 33 1788 wmic.exe Token: 34 1788 wmic.exe Token: 35 1788 wmic.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1088 wrote to memory of 1788 1088 f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe 28 PID 1088 wrote to memory of 1788 1088 f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe 28 PID 1088 wrote to memory of 1788 1088 f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe 28 PID 1088 wrote to memory of 1788 1088 f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe 28 -
Drops file in Program Files directory 30 IoCs
description ioc Process File created C:\Program Files\Microsoft SQL Server Compact Edition\v3.5\Desktop\DECRYPT-FILES.txt f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\SendPush.midi f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files (x86)\86ee096e2d86666c.tmp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\ConfirmMount.odp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\CopyTest.mp4 f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File created C:\Program Files\DECRYPT-FILES.txt f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\StepOptimize.temp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\SelectResolve.docx f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\ConvertUnpublish.pptm 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\RequestDisable.vsdm f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\StopJoin.docx f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\GroupOptimize.bat f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\LimitWrite.xltm f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\DisconnectWatch.mp3 f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\FormatSplit.sql f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\JoinInstall.ppsx f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\Microsoft SQL Server Compact Edition\v3.5\Desktop\86ee096e2d86666c.tmp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\86ee096e2d86666c.tmp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\CompareMove.mp4v f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\InvokeDismount.DVR-MS f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\AddPop.aifc f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\GroupDisable.tif f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\MeasureUpdate.ppsx 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\86ee096e2d86666c.tmp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\RemoveDisconnect.midi f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\ExportSuspend.m3u f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe File opened for modification C:\Program Files\Microsoft SQL Server Compact Edition\86ee096e2d86666c.tmp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe -
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\86ee096e2d86666c.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\86ee096e2d86666c.tmp f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.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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Modifies service 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer vssvc.exe 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\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5} vssvc.exe -
Maze
Ransomware family also known as ChaCha.
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Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1088 f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe"C:\Users\Admin\AppData\Local\Temp\f03172bd32ed16df6dda8e8146d24b073b864da59d669218fcc5e97835a5e956.exe"1⤵
- Sets desktop wallpaper using registry
- Suspicious use of WriteProcessMemory
- Drops file in Program Files directory
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
PID:1088 -
C:\Windows\system32\wbem\wmic.exe"C:\p\..\Windows\rn\hfji\oaxm\..\..\..\system32\wgb\..\wbem\dcbxf\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1788
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
- Modifies service
PID:280
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵PID:1840