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Analysis
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max time kernel
162s -
max time network
170s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
16/02/2022, 23:08
Static task
static1
Behavioral task
behavioral1
Sample
284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe
Resource
win10v2004-en-20220113
General
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Target
284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe
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Size
643KB
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MD5
d3eaab616883fcf51dcbdb4769dd86df
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SHA1
c2a509a5bf4a1b3d75877649996e7f5f3f495ad4
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SHA256
284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab
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SHA512
fd65824e554cc85187404f8b1c7a72be5496555c6354dd5566dbba8ecfb91c0e813b17aca08b910274b9fc083c02f8b753c0ca2d5d8fdd0bd79be1996eef69de
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/892e099c9869a39d
https://mazedecrypt.top/892e099c9869a39d
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 7 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\TestPing.tiff => C:\Users\Admin\Pictures\TestPing.tiff.uma0G 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File renamed C:\Users\Admin\Pictures\PingShow.png => C:\Users\Admin\Pictures\PingShow.png.jyyA 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Users\Admin\Pictures\RepairEdit.tiff 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File renamed C:\Users\Admin\Pictures\RepairEdit.tiff => C:\Users\Admin\Pictures\RepairEdit.tiff.jyyA 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File renamed C:\Users\Admin\Pictures\RestoreSwitch.png => C:\Users\Admin\Pictures\RestoreSwitch.png.jyyA 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File renamed C:\Users\Admin\Pictures\StopSync.crw => C:\Users\Admin\Pictures\StopSync.crw.uma0G 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Users\Admin\Pictures\TestPing.tiff 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.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 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\892e099c9869a39d.tmp 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.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" 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe -
Drops file in Program Files directory 47 IoCs
description ioc Process File opened for modification C:\Program Files\PingCopy.bmp 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\RevokeSwitch.pub 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\ShowGet.mpp 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\AddCompare.wmv 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\EnterBlock.xlsb 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\ExportEnable.pcx 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\HideSet.dwfx 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\MoveUndo.vbs 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\DECRYPT-FILES.txt 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\ConfirmDisable.vsdx 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\ApproveSplit.asx 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\CompleteConvert.dxf 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\ConfirmUndo.bmp 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\ExitDebug.vb 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\FormatBackup.wmf 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\PopEnable.mid 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\DECRYPT-FILES.txt 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\892e099c9869a39d.tmp 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\ConvertFromMeasure.vb 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\MeasureGroup.xlsm 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\RestartDismount.mhtml 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\SplitRepair.vstx 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\SubmitReset.wps 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\892e099c9869a39d.tmp 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\892e099c9869a39d.tmp 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File created C:\Program Files\DECRYPT-FILES.txt 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\EnableSubmit.ocx 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\InvokeCopy.dwfx 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\TraceBlock.png 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\892e099c9869a39d.tmp 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\BackupGet.mp3 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\StepDeny.vst 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\UnlockUndo.scf 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\DECRYPT-FILES.txt 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\CopyOpen.png 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\MoveRestore.3gp 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\SkipOpen.mp4 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files (x86)\892e099c9869a39d.tmp 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\CompressShow.xlsm 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\DenyTest.inf 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\OutUnpublish.jpg 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\ProtectStep.vsw 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\RegisterStart.ppt 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\RegisterUnprotect.vdx 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\UnblockRemove.docx 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe File opened for modification C:\Program Files\CopyMove.DVR 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1848 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeBackupPrivilege 1368 vssvc.exe Token: SeRestorePrivilege 1368 vssvc.exe Token: SeAuditPrivilege 1368 vssvc.exe Token: SeIncreaseQuotaPrivilege 900 wmic.exe Token: SeSecurityPrivilege 900 wmic.exe Token: SeTakeOwnershipPrivilege 900 wmic.exe Token: SeLoadDriverPrivilege 900 wmic.exe Token: SeSystemProfilePrivilege 900 wmic.exe Token: SeSystemtimePrivilege 900 wmic.exe Token: SeProfSingleProcessPrivilege 900 wmic.exe Token: SeIncBasePriorityPrivilege 900 wmic.exe Token: SeCreatePagefilePrivilege 900 wmic.exe Token: SeBackupPrivilege 900 wmic.exe Token: SeRestorePrivilege 900 wmic.exe Token: SeShutdownPrivilege 900 wmic.exe Token: SeDebugPrivilege 900 wmic.exe Token: SeSystemEnvironmentPrivilege 900 wmic.exe Token: SeRemoteShutdownPrivilege 900 wmic.exe Token: SeUndockPrivilege 900 wmic.exe Token: SeManageVolumePrivilege 900 wmic.exe Token: 33 900 wmic.exe Token: 34 900 wmic.exe Token: 35 900 wmic.exe Token: SeIncreaseQuotaPrivilege 900 wmic.exe Token: SeSecurityPrivilege 900 wmic.exe Token: SeTakeOwnershipPrivilege 900 wmic.exe Token: SeLoadDriverPrivilege 900 wmic.exe Token: SeSystemProfilePrivilege 900 wmic.exe Token: SeSystemtimePrivilege 900 wmic.exe Token: SeProfSingleProcessPrivilege 900 wmic.exe Token: SeIncBasePriorityPrivilege 900 wmic.exe Token: SeCreatePagefilePrivilege 900 wmic.exe Token: SeBackupPrivilege 900 wmic.exe Token: SeRestorePrivilege 900 wmic.exe Token: SeShutdownPrivilege 900 wmic.exe Token: SeDebugPrivilege 900 wmic.exe Token: SeSystemEnvironmentPrivilege 900 wmic.exe Token: SeRemoteShutdownPrivilege 900 wmic.exe Token: SeUndockPrivilege 900 wmic.exe Token: SeManageVolumePrivilege 900 wmic.exe Token: 33 900 wmic.exe Token: 34 900 wmic.exe Token: 35 900 wmic.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1848 wrote to memory of 900 1848 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe 35 PID 1848 wrote to memory of 900 1848 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe 35 PID 1848 wrote to memory of 900 1848 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe 35 PID 1848 wrote to memory of 900 1848 284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.exe"C:\Users\Admin\AppData\Local\Temp\284b294160d8af073b668443204ea9f49d93f12d3ea1e030106eb43c1ae2b1ab.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:1848 -
C:\Windows\system32\wbem\wmic.exe"C:\weuue\..\Windows\ohxke\..\system32\gobcp\..\wbem\yqnl\ovbw\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:900
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1368
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵PID:1728