Analysis
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max time kernel
151s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-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 6 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\CloseWait.png => C:\Users\Admin\Pictures\CloseWait.png.CL1N e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\GroupLimit.crw => C:\Users\Admin\Pictures\GroupLimit.crw.9sIrG e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\GroupUndo.png => C:\Users\Admin\Pictures\GroupUndo.png.NeF7Fj e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\HideCopy.crw => C:\Users\Admin\Pictures\HideCopy.crw.NeF7Fj e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\ResetSave.crw => C:\Users\Admin\Pictures\ResetSave.crw.P7m7 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\UseInvoke.raw => C:\Users\Admin\Pictures\UseInvoke.raw.VmDd e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Drops startup file 4 IoCs
description 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\7eo5zw96q.dat e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\DECRYPT-FILES.html e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\7eo5zw96q.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
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\123456789.bmp" e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3276 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 3276 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 1128 wmic.exe Token: SeSecurityPrivilege 1128 wmic.exe Token: SeTakeOwnershipPrivilege 1128 wmic.exe Token: SeLoadDriverPrivilege 1128 wmic.exe Token: SeSystemProfilePrivilege 1128 wmic.exe Token: SeSystemtimePrivilege 1128 wmic.exe Token: SeProfSingleProcessPrivilege 1128 wmic.exe Token: SeIncBasePriorityPrivilege 1128 wmic.exe Token: SeCreatePagefilePrivilege 1128 wmic.exe Token: SeBackupPrivilege 1128 wmic.exe Token: SeRestorePrivilege 1128 wmic.exe Token: SeShutdownPrivilege 1128 wmic.exe Token: SeDebugPrivilege 1128 wmic.exe Token: SeSystemEnvironmentPrivilege 1128 wmic.exe Token: SeRemoteShutdownPrivilege 1128 wmic.exe Token: SeUndockPrivilege 1128 wmic.exe Token: SeManageVolumePrivilege 1128 wmic.exe Token: 33 1128 wmic.exe Token: 34 1128 wmic.exe Token: 35 1128 wmic.exe Token: 36 1128 wmic.exe Token: SeIncreaseQuotaPrivilege 1128 wmic.exe Token: SeSecurityPrivilege 1128 wmic.exe Token: SeTakeOwnershipPrivilege 1128 wmic.exe Token: SeLoadDriverPrivilege 1128 wmic.exe Token: SeSystemProfilePrivilege 1128 wmic.exe Token: SeSystemtimePrivilege 1128 wmic.exe Token: SeProfSingleProcessPrivilege 1128 wmic.exe Token: SeIncBasePriorityPrivilege 1128 wmic.exe Token: SeCreatePagefilePrivilege 1128 wmic.exe Token: SeBackupPrivilege 1128 wmic.exe Token: SeRestorePrivilege 1128 wmic.exe Token: SeShutdownPrivilege 1128 wmic.exe Token: SeDebugPrivilege 1128 wmic.exe Token: SeSystemEnvironmentPrivilege 1128 wmic.exe Token: SeRemoteShutdownPrivilege 1128 wmic.exe Token: SeUndockPrivilege 1128 wmic.exe Token: SeManageVolumePrivilege 1128 wmic.exe Token: 33 1128 wmic.exe Token: 34 1128 wmic.exe Token: 35 1128 wmic.exe Token: 36 1128 wmic.exe Token: SeBackupPrivilege 1264 vssvc.exe Token: SeRestorePrivilege 1264 vssvc.exe Token: SeAuditPrivilege 1264 vssvc.exe Token: SeIncreaseQuotaPrivilege 4272 wmic.exe Token: SeSecurityPrivilege 4272 wmic.exe Token: SeTakeOwnershipPrivilege 4272 wmic.exe Token: SeLoadDriverPrivilege 4272 wmic.exe Token: SeSystemProfilePrivilege 4272 wmic.exe Token: SeSystemtimePrivilege 4272 wmic.exe Token: SeProfSingleProcessPrivilege 4272 wmic.exe Token: SeIncBasePriorityPrivilege 4272 wmic.exe Token: SeCreatePagefilePrivilege 4272 wmic.exe Token: SeBackupPrivilege 4272 wmic.exe Token: SeRestorePrivilege 4272 wmic.exe Token: SeShutdownPrivilege 4272 wmic.exe Token: SeDebugPrivilege 4272 wmic.exe Token: SeSystemEnvironmentPrivilege 4272 wmic.exe Token: SeRemoteShutdownPrivilege 4272 wmic.exe Token: SeUndockPrivilege 4272 wmic.exe Token: SeManageVolumePrivilege 4272 wmic.exe Token: 33 4272 wmic.exe Token: 34 4272 wmic.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3276 wrote to memory of 1128 3276 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 88 PID 3276 wrote to memory of 1128 3276 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 88 PID 3276 wrote to memory of 4272 3276 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 95 PID 3276 wrote to memory of 4272 3276 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 95
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
PID:3276 -
C:\Windows\system32\wbem\wmic.exe"C:\lrp\..\Windows\dlqpv\rch\ocyas\..\..\..\system32\rselw\..\wbem\a\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1128
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C:\Windows\system32\wbem\wmic.exe"C:\bxp\os\kuag\..\..\..\Windows\rhp\ppr\..\..\system32\gy\jfgc\..\..\wbem\p\ty\yqna\..\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4272
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1264
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x240 0x2441⤵PID:824