Analysis
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max time kernel
172s -
max time network
167s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
16-02-2022 22:36
Static task
static1
Behavioral task
behavioral1
Sample
db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe
Resource
win10v2004-en-20220113
General
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Target
db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe
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Size
1.1MB
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MD5
996360cdddfe5f6d6b868177fe5a3e1d
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SHA1
35bff002183a579b816f99178150421671e53483
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SHA256
db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2
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SHA512
983b93496ac27dd1d479fd991b568ff176aa0b3de170781d45e6e8db408253373597c9b78cc2547f460646863fa687c351222312f8858241ad1cf027f26da994
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/6c2b0cc8a878c8c5
https://mazedecrypt.top/6c2b0cc8a878c8c5
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 6 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exedescription ioc Process File renamed C:\Users\Admin\Pictures\UnregisterInvoke.crw => C:\Users\Admin\Pictures\UnregisterInvoke.crw.Hyh1Vp db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Users\Admin\Pictures\EnableSend.tiff db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File renamed C:\Users\Admin\Pictures\EnableSend.tiff => C:\Users\Admin\Pictures\EnableSend.tiff.PEJA db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File renamed C:\Users\Admin\Pictures\ExitRestore.png => C:\Users\Admin\Pictures\ExitRestore.png.PEJA db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File renamed C:\Users\Admin\Pictures\FormatRevoke.crw => C:\Users\Admin\Pictures\FormatRevoke.crw.6zVRp db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File renamed C:\Users\Admin\Pictures\SplitHide.crw => C:\Users\Admin\Pictures\SplitHide.crw.DVRLR db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe -
Drops startup file 4 IoCs
Processes:
db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exedescription ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6c2b0cc8a878c8c5.tmp db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\DECRYPT-FILES.txt db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\6c2b0cc8a878c8c5.tmp db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.txt db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.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
Processes:
db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\111.bmp" db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe -
Drops file in Program Files directory 31 IoCs
Processes:
db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exedescription ioc Process File opened for modification C:\Program Files\SearchInitialize.tiff db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\UnpublishDisable.pptm db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\UpdateUnregister.pot db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\WatchDisconnect.vdw db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\CloseStart.mpeg3 db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\DenyGroup.vb db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\SetSubmit.ram db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files (x86)\6c2b0cc8a878c8c5.tmp db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\UninstallReset.wma db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\ReceiveExpand.wmv db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\RestoreNew.rar db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\UndoPush.rar db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\UndoUnpublish.M2T db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\ExportOptimize.vstx db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\PushMerge.tiff db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\SplitShow.png db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\UninstallSend.jfif db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\WaitPush.dwg db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\CompressSave.tiff db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\ConnectWait.sql db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\RequestLimit.ps1xml db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\WaitEnable.cfg db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\EnableSelect.xhtml db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\PingInvoke.vst db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\RestartUpdate.i64 db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File created C:\Program Files\DECRYPT-FILES.txt db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\6c2b0cc8a878c8c5.tmp db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\RegisterCopy.xps db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\ConvertToWatch.jfif db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe File opened for modification C:\Program Files\ExitMove.wav db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe -
Drops file in Windows directory 6 IoCs
Processes:
svchost.exedescription ioc Process File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.edb svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm svchost.exe File opened for modification C:\Windows\SoftwareDistribution\ReportingEvents.log svchost.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exepid Process 544 db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe 544 db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe -
Suspicious use of AdjustPrivilegeToken 53 IoCs
Processes:
vssvc.exewmic.exeAUDIODG.EXEsvchost.exedescription pid Process Token: SeBackupPrivilege 4896 vssvc.exe Token: SeRestorePrivilege 4896 vssvc.exe Token: SeAuditPrivilege 4896 vssvc.exe Token: SeIncreaseQuotaPrivilege 3584 wmic.exe Token: SeSecurityPrivilege 3584 wmic.exe Token: SeTakeOwnershipPrivilege 3584 wmic.exe Token: SeLoadDriverPrivilege 3584 wmic.exe Token: SeSystemProfilePrivilege 3584 wmic.exe Token: SeSystemtimePrivilege 3584 wmic.exe Token: SeProfSingleProcessPrivilege 3584 wmic.exe Token: SeIncBasePriorityPrivilege 3584 wmic.exe Token: SeCreatePagefilePrivilege 3584 wmic.exe Token: SeBackupPrivilege 3584 wmic.exe Token: SeRestorePrivilege 3584 wmic.exe Token: SeShutdownPrivilege 3584 wmic.exe Token: SeDebugPrivilege 3584 wmic.exe Token: SeSystemEnvironmentPrivilege 3584 wmic.exe Token: SeRemoteShutdownPrivilege 3584 wmic.exe Token: SeUndockPrivilege 3584 wmic.exe Token: SeManageVolumePrivilege 3584 wmic.exe Token: 33 3584 wmic.exe Token: 34 3584 wmic.exe Token: 35 3584 wmic.exe Token: 36 3584 wmic.exe Token: SeIncreaseQuotaPrivilege 3584 wmic.exe Token: SeSecurityPrivilege 3584 wmic.exe Token: SeTakeOwnershipPrivilege 3584 wmic.exe Token: SeLoadDriverPrivilege 3584 wmic.exe Token: SeSystemProfilePrivilege 3584 wmic.exe Token: SeSystemtimePrivilege 3584 wmic.exe Token: SeProfSingleProcessPrivilege 3584 wmic.exe Token: SeIncBasePriorityPrivilege 3584 wmic.exe Token: SeCreatePagefilePrivilege 3584 wmic.exe Token: SeBackupPrivilege 3584 wmic.exe Token: SeRestorePrivilege 3584 wmic.exe Token: SeShutdownPrivilege 3584 wmic.exe Token: SeDebugPrivilege 3584 wmic.exe Token: SeSystemEnvironmentPrivilege 3584 wmic.exe Token: SeRemoteShutdownPrivilege 3584 wmic.exe Token: SeUndockPrivilege 3584 wmic.exe Token: SeManageVolumePrivilege 3584 wmic.exe Token: 33 3584 wmic.exe Token: 34 3584 wmic.exe Token: 35 3584 wmic.exe Token: 36 3584 wmic.exe Token: 33 4028 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 4028 AUDIODG.EXE Token: SeShutdownPrivilege 2344 svchost.exe Token: SeCreatePagefilePrivilege 2344 svchost.exe Token: SeShutdownPrivilege 2344 svchost.exe Token: SeCreatePagefilePrivilege 2344 svchost.exe Token: SeShutdownPrivilege 2344 svchost.exe Token: SeCreatePagefilePrivilege 2344 svchost.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exedescription pid Process procid_target PID 544 wrote to memory of 3584 544 db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe 91 PID 544 wrote to memory of 3584 544 db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.exe"C:\Users\Admin\AppData\Local\Temp\db617d3ca09f78673aef2a706a0161b9a7e160f58891f14a1e7250b39e3d9fb2.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:544 -
C:\Windows\system32\wbem\wmic.exe"C:\pgage\..\Windows\nafe\..\system32\e\fw\..\..\wbem\gkly\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3584
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4896
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x31c 0x4841⤵
- Suspicious use of AdjustPrivilegeToken
PID:4028
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2344