Analysis
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max time kernel
152s -
max time network
154s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
07-09-2021 06:09
Static task
static1
Behavioral task
behavioral1
Sample
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe
Resource
win7-en
Behavioral task
behavioral2
Sample
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe
Resource
win10v20210408
General
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Target
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe
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Size
898KB
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MD5
61b32a82577a7ea823ff7303ab6b4283
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SHA1
9107c719795fa5768498abb4fed11d907e44d55e
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SHA256
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167
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SHA512
86ac9d3d0804f5dd3ebe08ab59058363bceeaa3f42d2d482f97ce688837b3b81693fde2b973250b93ee3223318b0f8e4f2faf6b0f91017807feacabce979d700
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/6ad50ca1fc93c123
https://mazedecrypt.top/6ad50ca1fc93c123
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.
description ioc Process File renamed C:\Users\Admin\Pictures\ShowStep.tif => C:\Users\Admin\Pictures\ShowStep.tif.JUYbxi 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File renamed C:\Users\Admin\Pictures\TestRestore.tif => C:\Users\Admin\Pictures\TestRestore.tif.JUYbxi 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File renamed C:\Users\Admin\Pictures\ConvertFromStop.raw => C:\Users\Admin\Pictures\ConvertFromStop.raw.EJOX8Y 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File renamed C:\Users\Admin\Pictures\DenyRevoke.crw => C:\Users\Admin\Pictures\DenyRevoke.crw.HHh0kf 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File renamed C:\Users\Admin\Pictures\ExportWrite.crw => C:\Users\Admin\Pictures\ExportWrite.crw.HHh0kf 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File renamed C:\Users\Admin\Pictures\RenameUse.crw => C:\Users\Admin\Pictures\RenameUse.crw.K9eiu4e 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.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 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6ad50ca1fc93c123.tmp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\DECRYPT-FILES.txt 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\6ad50ca1fc93c123.tmp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.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-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\000.bmp" 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe -
Drops file in Program Files directory 39 IoCs
description ioc Process File opened for modification C:\Program Files\CopyWatch.emz 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\FormatResolve.jfif 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\InitializeRequest.wmx 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\UpdateRename.html 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\CloseUnblock.3g2 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\DismountReceive.contact 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\EnterPublish.M2T 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\MergeUndo.vssx 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files (x86)\6ad50ca1fc93c123.tmp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\6ad50ca1fc93c123.tmp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\AddClear.docm 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\ConfirmEdit.htm 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\SaveRead.xltm 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\RestoreDisable.vsdm 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\CopyUninstall.avi 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\ExitCopy.ocx 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\MoveExit.bin 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\RemoveBackup.jpeg 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\RestartRemove.bin 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File created C:\Program Files\DECRYPT-FILES.txt 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\CheckpointLimit.bmp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\CompressHide.php 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\ConvertProtect.xls 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\RenameExport.search-ms 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\SplitCheckpoint.odt 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\StartTest.rm 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\SuspendStart.emz 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\DisableDisconnect.7z 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\GrantDebug.ttc 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\LockRegister.MOD 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\ProtectClear.xps 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\UndoUse.dwg 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\MergeEnable.css 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\MountSwitch.lock 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\SelectClear.midi 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\RequestUndo.AAC 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\RestoreDebug.vstm 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\SaveMount.wmv 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 644 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe 644 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
description pid Process Token: SeBackupPrivilege 4032 vssvc.exe Token: SeRestorePrivilege 4032 vssvc.exe Token: SeAuditPrivilege 4032 vssvc.exe Token: SeIncreaseQuotaPrivilege 3704 wmic.exe Token: SeSecurityPrivilege 3704 wmic.exe Token: SeTakeOwnershipPrivilege 3704 wmic.exe Token: SeLoadDriverPrivilege 3704 wmic.exe Token: SeSystemProfilePrivilege 3704 wmic.exe Token: SeSystemtimePrivilege 3704 wmic.exe Token: SeProfSingleProcessPrivilege 3704 wmic.exe Token: SeIncBasePriorityPrivilege 3704 wmic.exe Token: SeCreatePagefilePrivilege 3704 wmic.exe Token: SeBackupPrivilege 3704 wmic.exe Token: SeRestorePrivilege 3704 wmic.exe Token: SeShutdownPrivilege 3704 wmic.exe Token: SeDebugPrivilege 3704 wmic.exe Token: SeSystemEnvironmentPrivilege 3704 wmic.exe Token: SeRemoteShutdownPrivilege 3704 wmic.exe Token: SeUndockPrivilege 3704 wmic.exe Token: SeManageVolumePrivilege 3704 wmic.exe Token: 33 3704 wmic.exe Token: 34 3704 wmic.exe Token: 35 3704 wmic.exe Token: 36 3704 wmic.exe Token: SeIncreaseQuotaPrivilege 3704 wmic.exe Token: SeSecurityPrivilege 3704 wmic.exe Token: SeTakeOwnershipPrivilege 3704 wmic.exe Token: SeLoadDriverPrivilege 3704 wmic.exe Token: SeSystemProfilePrivilege 3704 wmic.exe Token: SeSystemtimePrivilege 3704 wmic.exe Token: SeProfSingleProcessPrivilege 3704 wmic.exe Token: SeIncBasePriorityPrivilege 3704 wmic.exe Token: SeCreatePagefilePrivilege 3704 wmic.exe Token: SeBackupPrivilege 3704 wmic.exe Token: SeRestorePrivilege 3704 wmic.exe Token: SeShutdownPrivilege 3704 wmic.exe Token: SeDebugPrivilege 3704 wmic.exe Token: SeSystemEnvironmentPrivilege 3704 wmic.exe Token: SeRemoteShutdownPrivilege 3704 wmic.exe Token: SeUndockPrivilege 3704 wmic.exe Token: SeManageVolumePrivilege 3704 wmic.exe Token: 33 3704 wmic.exe Token: 34 3704 wmic.exe Token: 35 3704 wmic.exe Token: 36 3704 wmic.exe Token: 33 2596 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 2596 AUDIODG.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 644 wrote to memory of 3704 644 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe 78 PID 644 wrote to memory of 3704 644 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe 78
Processes
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C:\Users\Admin\AppData\Local\Temp\4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe"C:\Users\Admin\AppData\Local\Temp\4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.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:644 -
C:\Windows\system32\wbem\wmic.exe"C:\a\..\Windows\rh\..\system32\ybw\bxjga\d\..\..\..\wbem\rgoxo\mbidv\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3704
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4032
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x4081⤵
- Suspicious use of AdjustPrivilegeToken
PID:2596