Analysis
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max time kernel
134s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
12-01-2023 18:29
Static task
static1
Behavioral task
behavioral1
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win10v2004-20221111-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 7 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\NewReset.tiff e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\NewReset.tiff => C:\Users\Admin\Pictures\NewReset.tiff.rYJe e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\StopBlock.tif => C:\Users\Admin\Pictures\StopBlock.tif.4vV5R e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\AddClose.crw => C:\Users\Admin\Pictures\AddClose.crw.NfKp3YN e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\ApproveMerge.tif => C:\Users\Admin\Pictures\ApproveMerge.tif.NfKp3YN e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File opened for modification C:\Users\Admin\Pictures\GrantAssert.tiff e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\GrantAssert.tiff => C:\Users\Admin\Pictures\GrantAssert.tiff.GtVI e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Drops startup file 2 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\kdzipzi2.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-1-5-21-1214520366-621468234-4062160515-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\123456789.bmp" e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1720 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 1640 wmic.exe Token: SeSecurityPrivilege 1640 wmic.exe Token: SeTakeOwnershipPrivilege 1640 wmic.exe Token: SeLoadDriverPrivilege 1640 wmic.exe Token: SeSystemProfilePrivilege 1640 wmic.exe Token: SeSystemtimePrivilege 1640 wmic.exe Token: SeProfSingleProcessPrivilege 1640 wmic.exe Token: SeIncBasePriorityPrivilege 1640 wmic.exe Token: SeCreatePagefilePrivilege 1640 wmic.exe Token: SeBackupPrivilege 1640 wmic.exe Token: SeRestorePrivilege 1640 wmic.exe Token: SeShutdownPrivilege 1640 wmic.exe Token: SeDebugPrivilege 1640 wmic.exe Token: SeSystemEnvironmentPrivilege 1640 wmic.exe Token: SeRemoteShutdownPrivilege 1640 wmic.exe Token: SeUndockPrivilege 1640 wmic.exe Token: SeManageVolumePrivilege 1640 wmic.exe Token: 33 1640 wmic.exe Token: 34 1640 wmic.exe Token: 35 1640 wmic.exe Token: SeIncreaseQuotaPrivilege 1640 wmic.exe Token: SeSecurityPrivilege 1640 wmic.exe Token: SeTakeOwnershipPrivilege 1640 wmic.exe Token: SeLoadDriverPrivilege 1640 wmic.exe Token: SeSystemProfilePrivilege 1640 wmic.exe Token: SeSystemtimePrivilege 1640 wmic.exe Token: SeProfSingleProcessPrivilege 1640 wmic.exe Token: SeIncBasePriorityPrivilege 1640 wmic.exe Token: SeCreatePagefilePrivilege 1640 wmic.exe Token: SeBackupPrivilege 1640 wmic.exe Token: SeRestorePrivilege 1640 wmic.exe Token: SeShutdownPrivilege 1640 wmic.exe Token: SeDebugPrivilege 1640 wmic.exe Token: SeSystemEnvironmentPrivilege 1640 wmic.exe Token: SeRemoteShutdownPrivilege 1640 wmic.exe Token: SeUndockPrivilege 1640 wmic.exe Token: SeManageVolumePrivilege 1640 wmic.exe Token: 33 1640 wmic.exe Token: 34 1640 wmic.exe Token: 35 1640 wmic.exe Token: SeBackupPrivilege 1304 vssvc.exe Token: SeRestorePrivilege 1304 vssvc.exe Token: SeAuditPrivilege 1304 vssvc.exe Token: SeIncreaseQuotaPrivilege 1976 wmic.exe Token: SeSecurityPrivilege 1976 wmic.exe Token: SeTakeOwnershipPrivilege 1976 wmic.exe Token: SeLoadDriverPrivilege 1976 wmic.exe Token: SeSystemProfilePrivilege 1976 wmic.exe Token: SeSystemtimePrivilege 1976 wmic.exe Token: SeProfSingleProcessPrivilege 1976 wmic.exe Token: SeIncBasePriorityPrivilege 1976 wmic.exe Token: SeCreatePagefilePrivilege 1976 wmic.exe Token: SeBackupPrivilege 1976 wmic.exe Token: SeRestorePrivilege 1976 wmic.exe Token: SeShutdownPrivilege 1976 wmic.exe Token: SeDebugPrivilege 1976 wmic.exe Token: SeSystemEnvironmentPrivilege 1976 wmic.exe Token: SeRemoteShutdownPrivilege 1976 wmic.exe Token: SeUndockPrivilege 1976 wmic.exe Token: SeManageVolumePrivilege 1976 wmic.exe Token: 33 1976 wmic.exe Token: 34 1976 wmic.exe Token: 35 1976 wmic.exe Token: SeIncreaseQuotaPrivilege 1976 wmic.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1720 wrote to memory of 1640 1720 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 28 PID 1720 wrote to memory of 1640 1720 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 28 PID 1720 wrote to memory of 1640 1720 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 28 PID 1720 wrote to memory of 1640 1720 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 28 PID 1720 wrote to memory of 1976 1720 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 34 PID 1720 wrote to memory of 1976 1720 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 34 PID 1720 wrote to memory of 1976 1720 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 34 PID 1720 wrote to memory of 1976 1720 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 34
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:1720 -
C:\Windows\system32\wbem\wmic.exe"C:\g\..\Windows\fhcj\aj\jmre\..\..\..\system32\owrw\tvwju\tgd\..\..\..\wbem\odc\qg\ci\..\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1640
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C:\Windows\system32\wbem\wmic.exe"C:\pfis\eursd\v\..\..\..\Windows\e\fff\tnhk\..\..\..\system32\tpyr\..\wbem\fffxf\ne\gfdin\..\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1976
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1304
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵PID:1732
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x5181⤵PID:1632