Analysis
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max time kernel
140s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
17-05-2022 03:22
Static task
static1
Behavioral task
behavioral1
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win10v2004-20220414-en
General
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Target
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
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Size
473KB
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MD5
f83fb9ce6a83da58b20685c1d7e1e546
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SHA1
01c459b549c1c2a68208d38d4ba5e36d29212a4f
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SHA256
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684
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SHA512
934ec9073a28b90e8df785bef49f224789da59f83729208b92dba0503e2894b3f48ed04b20de1ba49374b1cd26f0c87e8e5ab79e817258135e3be2c171f3f396
Malware Config
Extracted
C:\DECRYPT-FILES.html
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 2 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exedescription ioc process File renamed C:\Users\Admin\Pictures\DismountRename.raw => C:\Users\Admin\Pictures\DismountRename.raw.jbkpmn e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\LockMove.png => C:\Users\Admin\Pictures\LockMove.png.pMsGrj e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Drops startup file 2 IoCs
Processes:
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.html e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ebk3s84.dat e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.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:
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\123456789.bmp" e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exepid process 1036 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
wmic.exevssvc.exewmic.exedescription pid process Token: SeIncreaseQuotaPrivilege 1204 wmic.exe Token: SeSecurityPrivilege 1204 wmic.exe Token: SeTakeOwnershipPrivilege 1204 wmic.exe Token: SeLoadDriverPrivilege 1204 wmic.exe Token: SeSystemProfilePrivilege 1204 wmic.exe Token: SeSystemtimePrivilege 1204 wmic.exe Token: SeProfSingleProcessPrivilege 1204 wmic.exe Token: SeIncBasePriorityPrivilege 1204 wmic.exe Token: SeCreatePagefilePrivilege 1204 wmic.exe Token: SeBackupPrivilege 1204 wmic.exe Token: SeRestorePrivilege 1204 wmic.exe Token: SeShutdownPrivilege 1204 wmic.exe Token: SeDebugPrivilege 1204 wmic.exe Token: SeSystemEnvironmentPrivilege 1204 wmic.exe Token: SeRemoteShutdownPrivilege 1204 wmic.exe Token: SeUndockPrivilege 1204 wmic.exe Token: SeManageVolumePrivilege 1204 wmic.exe Token: 33 1204 wmic.exe Token: 34 1204 wmic.exe Token: 35 1204 wmic.exe Token: SeIncreaseQuotaPrivilege 1204 wmic.exe Token: SeSecurityPrivilege 1204 wmic.exe Token: SeTakeOwnershipPrivilege 1204 wmic.exe Token: SeLoadDriverPrivilege 1204 wmic.exe Token: SeSystemProfilePrivilege 1204 wmic.exe Token: SeSystemtimePrivilege 1204 wmic.exe Token: SeProfSingleProcessPrivilege 1204 wmic.exe Token: SeIncBasePriorityPrivilege 1204 wmic.exe Token: SeCreatePagefilePrivilege 1204 wmic.exe Token: SeBackupPrivilege 1204 wmic.exe Token: SeRestorePrivilege 1204 wmic.exe Token: SeShutdownPrivilege 1204 wmic.exe Token: SeDebugPrivilege 1204 wmic.exe Token: SeSystemEnvironmentPrivilege 1204 wmic.exe Token: SeRemoteShutdownPrivilege 1204 wmic.exe Token: SeUndockPrivilege 1204 wmic.exe Token: SeManageVolumePrivilege 1204 wmic.exe Token: 33 1204 wmic.exe Token: 34 1204 wmic.exe Token: 35 1204 wmic.exe Token: SeBackupPrivilege 468 vssvc.exe Token: SeRestorePrivilege 468 vssvc.exe Token: SeAuditPrivilege 468 vssvc.exe Token: SeIncreaseQuotaPrivilege 1336 wmic.exe Token: SeSecurityPrivilege 1336 wmic.exe Token: SeTakeOwnershipPrivilege 1336 wmic.exe Token: SeLoadDriverPrivilege 1336 wmic.exe Token: SeSystemProfilePrivilege 1336 wmic.exe Token: SeSystemtimePrivilege 1336 wmic.exe Token: SeProfSingleProcessPrivilege 1336 wmic.exe Token: SeIncBasePriorityPrivilege 1336 wmic.exe Token: SeCreatePagefilePrivilege 1336 wmic.exe Token: SeBackupPrivilege 1336 wmic.exe Token: SeRestorePrivilege 1336 wmic.exe Token: SeShutdownPrivilege 1336 wmic.exe Token: SeDebugPrivilege 1336 wmic.exe Token: SeSystemEnvironmentPrivilege 1336 wmic.exe Token: SeRemoteShutdownPrivilege 1336 wmic.exe Token: SeUndockPrivilege 1336 wmic.exe Token: SeManageVolumePrivilege 1336 wmic.exe Token: 33 1336 wmic.exe Token: 34 1336 wmic.exe Token: 35 1336 wmic.exe Token: SeIncreaseQuotaPrivilege 1336 wmic.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exedescription pid process target process PID 1036 wrote to memory of 1204 1036 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe PID 1036 wrote to memory of 1204 1036 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe PID 1036 wrote to memory of 1204 1036 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe PID 1036 wrote to memory of 1204 1036 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe PID 1036 wrote to memory of 1336 1036 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe PID 1036 wrote to memory of 1336 1036 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe PID 1036 wrote to memory of 1336 1036 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe PID 1036 wrote to memory of 1336 1036 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe"C:\Users\Admin\AppData\Local\Temp\e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe"1⤵
- Modifies extensions of user files
- Drops startup file
- Sets desktop wallpaper using registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\wbem\wmic.exe"C:\sgo\..\Windows\bfamd\nlupw\..\..\system32\en\..\wbem\lji\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\wbem\wmic.exe"C:\mw\c\..\..\Windows\mq\..\system32\ltlh\..\wbem\gt\groai\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0xc81⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1036-54-0x0000000075B61000-0x0000000075B63000-memory.dmpFilesize
8KB
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memory/1036-55-0x0000000000110000-0x000000000016B000-memory.dmpFilesize
364KB
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memory/1036-59-0x0000000000110000-0x000000000016B000-memory.dmpFilesize
364KB
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memory/1036-62-0x0000000000111000-0x0000000000147000-memory.dmpFilesize
216KB
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memory/1036-61-0x0000000000070000-0x00000000000C9000-memory.dmpFilesize
356KB
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memory/1204-63-0x0000000000000000-mapping.dmp
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memory/1336-64-0x0000000000000000-mapping.dmp