Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
10-01-2023 11:46
Static task
static1
Behavioral task
behavioral1
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win10v2004-20220812-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
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SSDEEP
12288:v6l/7FpnaeoQbRLBYdunMCayql4YcQD+AgJbAWgjbgpQ:CDna43YAKl4Yci+AggEpQ
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 10 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\CloseSearch.tif => C:\Users\Admin\Pictures\CloseSearch.tif.fpOUP0 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\CompressExport.raw => C:\Users\Admin\Pictures\CompressExport.raw.fpOUP0 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\HideWait.raw => C:\Users\Admin\Pictures\HideWait.raw.rqFmt8j e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\SelectTest.raw => C:\Users\Admin\Pictures\SelectTest.raw.lVFl e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File opened for modification C:\Users\Admin\Pictures\DisableSelect.tiff e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\DisableSelect.tiff => C:\Users\Admin\Pictures\DisableSelect.tiff.fpOUP0 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\DismountRename.tif => C:\Users\Admin\Pictures\DismountRename.tif.rqFmt8j e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\ExportUnlock.png => C:\Users\Admin\Pictures\ExportUnlock.png.rqFmt8j e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File opened for modification C:\Users\Admin\Pictures\GrantTest.tiff e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\GrantTest.tiff => C:\Users\Admin\Pictures\GrantTest.tiff.rqFmt8j 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\qttv9.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\qttv9.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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\123456789.bmp" e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 976 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 976 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4504 wmic.exe Token: SeSecurityPrivilege 4504 wmic.exe Token: SeTakeOwnershipPrivilege 4504 wmic.exe Token: SeLoadDriverPrivilege 4504 wmic.exe Token: SeSystemProfilePrivilege 4504 wmic.exe Token: SeSystemtimePrivilege 4504 wmic.exe Token: SeProfSingleProcessPrivilege 4504 wmic.exe Token: SeIncBasePriorityPrivilege 4504 wmic.exe Token: SeCreatePagefilePrivilege 4504 wmic.exe Token: SeBackupPrivilege 4504 wmic.exe Token: SeRestorePrivilege 4504 wmic.exe Token: SeShutdownPrivilege 4504 wmic.exe Token: SeDebugPrivilege 4504 wmic.exe Token: SeSystemEnvironmentPrivilege 4504 wmic.exe Token: SeRemoteShutdownPrivilege 4504 wmic.exe Token: SeUndockPrivilege 4504 wmic.exe Token: SeManageVolumePrivilege 4504 wmic.exe Token: 33 4504 wmic.exe Token: 34 4504 wmic.exe Token: 35 4504 wmic.exe Token: 36 4504 wmic.exe Token: SeIncreaseQuotaPrivilege 4504 wmic.exe Token: SeSecurityPrivilege 4504 wmic.exe Token: SeTakeOwnershipPrivilege 4504 wmic.exe Token: SeLoadDriverPrivilege 4504 wmic.exe Token: SeSystemProfilePrivilege 4504 wmic.exe Token: SeSystemtimePrivilege 4504 wmic.exe Token: SeProfSingleProcessPrivilege 4504 wmic.exe Token: SeIncBasePriorityPrivilege 4504 wmic.exe Token: SeCreatePagefilePrivilege 4504 wmic.exe Token: SeBackupPrivilege 4504 wmic.exe Token: SeRestorePrivilege 4504 wmic.exe Token: SeShutdownPrivilege 4504 wmic.exe Token: SeDebugPrivilege 4504 wmic.exe Token: SeSystemEnvironmentPrivilege 4504 wmic.exe Token: SeRemoteShutdownPrivilege 4504 wmic.exe Token: SeUndockPrivilege 4504 wmic.exe Token: SeManageVolumePrivilege 4504 wmic.exe Token: 33 4504 wmic.exe Token: 34 4504 wmic.exe Token: 35 4504 wmic.exe Token: 36 4504 wmic.exe Token: SeBackupPrivilege 1104 vssvc.exe Token: SeRestorePrivilege 1104 vssvc.exe Token: SeAuditPrivilege 1104 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 -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 976 wrote to memory of 4504 976 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 87 PID 976 wrote to memory of 4504 976 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 87 PID 976 wrote to memory of 1708 976 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 93 PID 976 wrote to memory of 1708 976 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 93
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:976 -
C:\Windows\system32\wbem\wmic.exe"C:\byyjc\ahsoo\wpyfb\..\..\..\Windows\mo\o\rmyc\..\..\..\system32\svhh\ia\l\..\..\..\wbem\c\u\qt\..\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4504
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C:\Windows\system32\wbem\wmic.exe"C:\j\djuj\fsqt\..\..\..\Windows\i\..\system32\qcwgt\qnus\..\..\wbem\umlk\..\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:1104
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x338 0x33c1⤵PID:1568