Analysis
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max time kernel
162s -
max time network
171s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
16-02-2022 22:59
Static task
static1
Behavioral task
behavioral1
Sample
5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe
Resource
win10v2004-en-20220113
General
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Target
5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe
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Size
365KB
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MD5
89990fc332d5a7f4da0111e42132b7de
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SHA1
caf2ec6c206bbf2ed433c434206c181ef0993788
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SHA256
5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520
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SHA512
6405f151a64ca174c05e40973abab3a8c40f5f6f1c984950be615b7709f75c3447e38f364e0145fffcc74a73394c7c74275f90451cb6a02513c4c99e644b0706
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/892e099c246a7ed8
https://mazedecrypt.top/892e099c246a7ed8
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 5 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\DenyMerge.png => C:\Users\Admin\Pictures\DenyMerge.png.L9K3 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File renamed C:\Users\Admin\Pictures\EnterCheckpoint.raw => C:\Users\Admin\Pictures\EnterCheckpoint.raw.6Wno 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File renamed C:\Users\Admin\Pictures\NewRename.raw => C:\Users\Admin\Pictures\NewRename.raw.6Wno 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File renamed C:\Users\Admin\Pictures\RequestExport.tif => C:\Users\Admin\Pictures\RequestExport.tif.6Wno 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File renamed C:\Users\Admin\Pictures\UnblockConvertFrom.tif => C:\Users\Admin\Pictures\UnblockConvertFrom.tif.i4yb 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.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 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\892e099c246a7ed8.tmp 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.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" 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe -
Drops file in Program Files directory 43 IoCs
description ioc Process File opened for modification C:\Program Files\SearchRegister.eps 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\892e099c246a7ed8.tmp 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\DECRYPT-FILES.txt 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\ExpandCopy.ppt 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\ReadDisable.eps 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\SaveConvertTo.lock 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\ConvertApprove.rtf 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\GetCompare.pptx 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\UnregisterInstall.xsl 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\ExitResume.potm 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\LockUninstall.xls 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\MoveSearch.txt 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\RequestClear.dotx 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\RequestSync.aif 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\CompareSync.wmv 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\ConvertToShow.xlsb 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\DebugSync.dwfx 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\SendGroup.xlsx 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\WriteUpdate.TTS 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files (x86)\892e099c246a7ed8.tmp 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\BlockMerge.wav 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\DECRYPT-FILES.txt 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\892e099c246a7ed8.tmp 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\892e099c246a7ed8.tmp 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\DECRYPT-FILES.txt 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File created C:\Program Files\DECRYPT-FILES.txt 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\892e099c246a7ed8.tmp 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\SendJoin.wax 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\ExitUninstall.3g2 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\GroupMount.wav 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\NewPush.xltx 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\UnblockRename.easmx 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\WaitMount.xlsx 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\ClearGrant.rm 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\ConvertFromCompare.mpeg2 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\DisconnectExit.tiff 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\WatchStart.mp2v 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\SubmitRepair.zip 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\SyncDeny.tmp 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\CloseNew.xlsb 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\SetSubmit.m4a 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe File opened for modification C:\Program Files\SubmitClose.lock 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1044 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeBackupPrivilege 112 vssvc.exe Token: SeRestorePrivilege 112 vssvc.exe Token: SeAuditPrivilege 112 vssvc.exe Token: SeIncreaseQuotaPrivilege 952 wmic.exe Token: SeSecurityPrivilege 952 wmic.exe Token: SeTakeOwnershipPrivilege 952 wmic.exe Token: SeLoadDriverPrivilege 952 wmic.exe Token: SeSystemProfilePrivilege 952 wmic.exe Token: SeSystemtimePrivilege 952 wmic.exe Token: SeProfSingleProcessPrivilege 952 wmic.exe Token: SeIncBasePriorityPrivilege 952 wmic.exe Token: SeCreatePagefilePrivilege 952 wmic.exe Token: SeBackupPrivilege 952 wmic.exe Token: SeRestorePrivilege 952 wmic.exe Token: SeShutdownPrivilege 952 wmic.exe Token: SeDebugPrivilege 952 wmic.exe Token: SeSystemEnvironmentPrivilege 952 wmic.exe Token: SeRemoteShutdownPrivilege 952 wmic.exe Token: SeUndockPrivilege 952 wmic.exe Token: SeManageVolumePrivilege 952 wmic.exe Token: 33 952 wmic.exe Token: 34 952 wmic.exe Token: 35 952 wmic.exe Token: SeIncreaseQuotaPrivilege 952 wmic.exe Token: SeSecurityPrivilege 952 wmic.exe Token: SeTakeOwnershipPrivilege 952 wmic.exe Token: SeLoadDriverPrivilege 952 wmic.exe Token: SeSystemProfilePrivilege 952 wmic.exe Token: SeSystemtimePrivilege 952 wmic.exe Token: SeProfSingleProcessPrivilege 952 wmic.exe Token: SeIncBasePriorityPrivilege 952 wmic.exe Token: SeCreatePagefilePrivilege 952 wmic.exe Token: SeBackupPrivilege 952 wmic.exe Token: SeRestorePrivilege 952 wmic.exe Token: SeShutdownPrivilege 952 wmic.exe Token: SeDebugPrivilege 952 wmic.exe Token: SeSystemEnvironmentPrivilege 952 wmic.exe Token: SeRemoteShutdownPrivilege 952 wmic.exe Token: SeUndockPrivilege 952 wmic.exe Token: SeManageVolumePrivilege 952 wmic.exe Token: 33 952 wmic.exe Token: 34 952 wmic.exe Token: 35 952 wmic.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1044 wrote to memory of 952 1044 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe 35 PID 1044 wrote to memory of 952 1044 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe 35 PID 1044 wrote to memory of 952 1044 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe 35 PID 1044 wrote to memory of 952 1044 5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.exe"C:\Users\Admin\AppData\Local\Temp\5a06ae8540d5a0d7fb88e80d3e61c3a6079f3abdafe998ce70ffdcac9e940520.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:1044 -
C:\Windows\system32\wbem\wmic.exe"C:\tloxg\..\Windows\i\l\grbk\..\..\..\system32\lvor\..\wbem\b\ujnl\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:952
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:112
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵PID:1156