Analysis
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max time kernel
148s -
max time network
177s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
16-02-2022 22:57
Static task
static1
Behavioral task
behavioral1
Sample
5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe
Resource
win10v2004-en-20220113
General
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Target
5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe
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Size
1.1MB
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MD5
68a2aaf9eaf66729bcce07371c9499c8
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SHA1
19389573365a6de9788ffc637f56987acb87de8d
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SHA256
5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52
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SHA512
c8fa6c5b30a37b84e2965bade64ae390abc32a25df7c0149946751ac40d55015bd853c60a89b927cafeafe88443290ba4f8b9975951c741850cd3554521fea5e
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/6d570cc8c3ba18be
https://mazedecrypt.top/6d570cc8c3ba18be
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 4 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exedescription ioc Process File renamed C:\Users\Admin\Pictures\OpenAssert.tiff => C:\Users\Admin\Pictures\OpenAssert.tiff.DWG8EC 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Users\Admin\Pictures\CompareCopy.tiff 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File renamed C:\Users\Admin\Pictures\CompareCopy.tiff => C:\Users\Admin\Pictures\CompareCopy.tiff.PovM 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Users\Admin\Pictures\OpenAssert.tiff 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe -
Drops startup file 2 IoCs
Processes:
5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exedescription ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.txt 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6d570cc8c3ba18be.tmp 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.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:
5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exedescription 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" 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe -
Drops file in Program Files directory 23 IoCs
Processes:
5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exedescription ioc Process File opened for modification C:\Program Files\BackupLimit.001 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files\CompressRegister.3gp 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files\DebugShow.iso 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files\NewReset.wax 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\DECRYPT-FILES.txt 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\6d570cc8c3ba18be.tmp 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files\ConfirmMount.mp4 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files\StopEnable.rmi 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files\TestAssert.scf 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\DECRYPT-FILES.txt 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\6d570cc8c3ba18be.tmp 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File created C:\Program Files\DECRYPT-FILES.txt 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files\6d570cc8c3ba18be.tmp 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files\EditRestart.php 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files\ExpandCopy.emz 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files\ResetResolve.wdp 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files\ResolveAdd.m4a 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\DECRYPT-FILES.txt 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files\FindCopy.M2TS 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files\GroupRename.vstm 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files (x86)\6d570cc8c3ba18be.tmp 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\6d570cc8c3ba18be.tmp 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exepid Process 1656 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe -
Suspicious use of AdjustPrivilegeToken 43 IoCs
Processes:
vssvc.exewmic.exedescription pid Process Token: SeBackupPrivilege 888 vssvc.exe Token: SeRestorePrivilege 888 vssvc.exe Token: SeAuditPrivilege 888 vssvc.exe Token: SeIncreaseQuotaPrivilege 1708 wmic.exe Token: SeSecurityPrivilege 1708 wmic.exe Token: SeTakeOwnershipPrivilege 1708 wmic.exe Token: SeLoadDriverPrivilege 1708 wmic.exe Token: SeSystemProfilePrivilege 1708 wmic.exe Token: SeSystemtimePrivilege 1708 wmic.exe Token: SeProfSingleProcessPrivilege 1708 wmic.exe Token: SeIncBasePriorityPrivilege 1708 wmic.exe Token: SeCreatePagefilePrivilege 1708 wmic.exe Token: SeBackupPrivilege 1708 wmic.exe Token: SeRestorePrivilege 1708 wmic.exe Token: SeShutdownPrivilege 1708 wmic.exe Token: SeDebugPrivilege 1708 wmic.exe Token: SeSystemEnvironmentPrivilege 1708 wmic.exe Token: SeRemoteShutdownPrivilege 1708 wmic.exe Token: SeUndockPrivilege 1708 wmic.exe Token: SeManageVolumePrivilege 1708 wmic.exe Token: 33 1708 wmic.exe Token: 34 1708 wmic.exe Token: 35 1708 wmic.exe Token: SeIncreaseQuotaPrivilege 1708 wmic.exe Token: SeSecurityPrivilege 1708 wmic.exe Token: SeTakeOwnershipPrivilege 1708 wmic.exe Token: SeLoadDriverPrivilege 1708 wmic.exe Token: SeSystemProfilePrivilege 1708 wmic.exe Token: SeSystemtimePrivilege 1708 wmic.exe Token: SeProfSingleProcessPrivilege 1708 wmic.exe Token: SeIncBasePriorityPrivilege 1708 wmic.exe Token: SeCreatePagefilePrivilege 1708 wmic.exe Token: SeBackupPrivilege 1708 wmic.exe Token: SeRestorePrivilege 1708 wmic.exe Token: SeShutdownPrivilege 1708 wmic.exe Token: SeDebugPrivilege 1708 wmic.exe Token: SeSystemEnvironmentPrivilege 1708 wmic.exe Token: SeRemoteShutdownPrivilege 1708 wmic.exe Token: SeUndockPrivilege 1708 wmic.exe Token: SeManageVolumePrivilege 1708 wmic.exe Token: 33 1708 wmic.exe Token: 34 1708 wmic.exe Token: 35 1708 wmic.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exedescription pid Process procid_target PID 1656 wrote to memory of 1708 1656 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe 33 PID 1656 wrote to memory of 1708 1656 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe 33 PID 1656 wrote to memory of 1708 1656 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe 33 PID 1656 wrote to memory of 1708 1656 5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.exe"C:\Users\Admin\AppData\Local\Temp\5f6cd6badb98e7fb6a9056b925e155b844073bbfbfe52e5576487440b1784b52.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:1656 -
C:\Windows\system32\wbem\wmic.exe"C:\ummx\yq\..\..\Windows\becgk\..\system32\yrv\..\wbem\il\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1708
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:888
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵PID:1984