Analysis
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max time kernel
466s -
max time network
424s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
10-02-2023 12:55
Static task
static1
Behavioral task
behavioral1
Sample
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe
Resource
win10v2004-20221111-en
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
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SSDEEP
12288:20lnPLRBrenjExzDKNg6dNoQl+vtMyOo/mSVTWa5QLeuXwuxbvRr/LpiRPMBp:201PLX0GferoQOMyySVa/VFbvhtiRPo
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/6d070cc32835808b
https://mazedecrypt.top/6d070cc32835808b
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:
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exedescription ioc Process File opened for modification C:\Users\Admin\Pictures\OpenAssert.tiff 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File renamed C:\Users\Admin\Pictures\OpenAssert.tiff => C:\Users\Admin\Pictures\OpenAssert.tiff.mBv8 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Users\Admin\Pictures\CompareCopy.tiff 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File renamed C:\Users\Admin\Pictures\CompareCopy.tiff => C:\Users\Admin\Pictures\CompareCopy.tiff.fxHL 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe -
Drops startup file 2 IoCs
Processes:
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exedescription ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6d070cc32835808b.tmp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.txt 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
Processes:
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\000.bmp" 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe -
Drops file in Program Files directory 23 IoCs
Processes:
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exedescription ioc Process File opened for modification C:\Program Files (x86)\6d070cc32835808b.tmp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\DECRYPT-FILES.txt 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File created C:\Program Files\DECRYPT-FILES.txt 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\GroupRename.vstm 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\NewReset.wax 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\StopEnable.rmi 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\ResolveAdd.m4a 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\6d070cc32835808b.tmp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\6d070cc32835808b.tmp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\CompressRegister.3gp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\ConfirmMount.mp4 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\ExpandCopy.emz 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\DECRYPT-FILES.txt 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\6d070cc32835808b.tmp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\6d070cc32835808b.tmp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\BackupLimit.001 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\FindCopy.M2TS 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\ResetResolve.wdp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\TestAssert.scf 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\DebugShow.iso 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\EditRestart.php 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File created C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\DECRYPT-FILES.txt 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exepid Process 1972 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe -
Suspicious use of AdjustPrivilegeToken 51 IoCs
Processes:
vssvc.exewmic.exeAUDIODG.EXEAUDIODG.EXEdescription pid Process Token: SeBackupPrivilege 1636 vssvc.exe Token: SeRestorePrivilege 1636 vssvc.exe Token: SeAuditPrivilege 1636 vssvc.exe Token: SeIncreaseQuotaPrivilege 1604 wmic.exe Token: SeSecurityPrivilege 1604 wmic.exe Token: SeTakeOwnershipPrivilege 1604 wmic.exe Token: SeLoadDriverPrivilege 1604 wmic.exe Token: SeSystemProfilePrivilege 1604 wmic.exe Token: SeSystemtimePrivilege 1604 wmic.exe Token: SeProfSingleProcessPrivilege 1604 wmic.exe Token: SeIncBasePriorityPrivilege 1604 wmic.exe Token: SeCreatePagefilePrivilege 1604 wmic.exe Token: SeBackupPrivilege 1604 wmic.exe Token: SeRestorePrivilege 1604 wmic.exe Token: SeShutdownPrivilege 1604 wmic.exe Token: SeDebugPrivilege 1604 wmic.exe Token: SeSystemEnvironmentPrivilege 1604 wmic.exe Token: SeRemoteShutdownPrivilege 1604 wmic.exe Token: SeUndockPrivilege 1604 wmic.exe Token: SeManageVolumePrivilege 1604 wmic.exe Token: 33 1604 wmic.exe Token: 34 1604 wmic.exe Token: 35 1604 wmic.exe Token: SeIncreaseQuotaPrivilege 1604 wmic.exe Token: SeSecurityPrivilege 1604 wmic.exe Token: SeTakeOwnershipPrivilege 1604 wmic.exe Token: SeLoadDriverPrivilege 1604 wmic.exe Token: SeSystemProfilePrivilege 1604 wmic.exe Token: SeSystemtimePrivilege 1604 wmic.exe Token: SeProfSingleProcessPrivilege 1604 wmic.exe Token: SeIncBasePriorityPrivilege 1604 wmic.exe Token: SeCreatePagefilePrivilege 1604 wmic.exe Token: SeBackupPrivilege 1604 wmic.exe Token: SeRestorePrivilege 1604 wmic.exe Token: SeShutdownPrivilege 1604 wmic.exe Token: SeDebugPrivilege 1604 wmic.exe Token: SeSystemEnvironmentPrivilege 1604 wmic.exe Token: SeRemoteShutdownPrivilege 1604 wmic.exe Token: SeUndockPrivilege 1604 wmic.exe Token: SeManageVolumePrivilege 1604 wmic.exe Token: 33 1604 wmic.exe Token: 34 1604 wmic.exe Token: 35 1604 wmic.exe Token: 33 988 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 988 AUDIODG.EXE Token: 33 988 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 988 AUDIODG.EXE Token: 33 1928 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1928 AUDIODG.EXE Token: 33 1928 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1928 AUDIODG.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exedescription pid Process procid_target PID 1972 wrote to memory of 1604 1972 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe 34 PID 1972 wrote to memory of 1604 1972 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe 34 PID 1972 wrote to memory of 1604 1972 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe 34 PID 1972 wrote to memory of 1604 1972 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe 34
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:1972 -
C:\Windows\system32\wbem\wmic.exe"C:\dxby\l\y\..\..\..\Windows\runri\g\ufc\..\..\..\system32\xq\jshcn\nhsm\..\..\..\wbem\i\unuvo\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1604
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1636
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵PID:756
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x55c1⤵
- Suspicious use of AdjustPrivilegeToken
PID:988
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵PID:1996
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0xcc1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1928