Analysis
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max time kernel
148s -
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
22-08-2022 20:28
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
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.
description ioc Process File renamed C:\Users\Admin\Pictures\AddHide.png => C:\Users\Admin\Pictures\AddHide.png.NuwVm e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\GetUse.tif => C:\Users\Admin\Pictures\GetUse.tif.G8SanT 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\qbrml8qw.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\qbrml8qw.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-1-5-21-1502147629-2175634256-330282290-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\123456789.bmp" e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3076 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 3076 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3544 wmic.exe Token: SeSecurityPrivilege 3544 wmic.exe Token: SeTakeOwnershipPrivilege 3544 wmic.exe Token: SeLoadDriverPrivilege 3544 wmic.exe Token: SeSystemProfilePrivilege 3544 wmic.exe Token: SeSystemtimePrivilege 3544 wmic.exe Token: SeProfSingleProcessPrivilege 3544 wmic.exe Token: SeIncBasePriorityPrivilege 3544 wmic.exe Token: SeCreatePagefilePrivilege 3544 wmic.exe Token: SeBackupPrivilege 3544 wmic.exe Token: SeRestorePrivilege 3544 wmic.exe Token: SeShutdownPrivilege 3544 wmic.exe Token: SeDebugPrivilege 3544 wmic.exe Token: SeSystemEnvironmentPrivilege 3544 wmic.exe Token: SeRemoteShutdownPrivilege 3544 wmic.exe Token: SeUndockPrivilege 3544 wmic.exe Token: SeManageVolumePrivilege 3544 wmic.exe Token: 33 3544 wmic.exe Token: 34 3544 wmic.exe Token: 35 3544 wmic.exe Token: 36 3544 wmic.exe Token: SeIncreaseQuotaPrivilege 3544 wmic.exe Token: SeSecurityPrivilege 3544 wmic.exe Token: SeTakeOwnershipPrivilege 3544 wmic.exe Token: SeLoadDriverPrivilege 3544 wmic.exe Token: SeSystemProfilePrivilege 3544 wmic.exe Token: SeSystemtimePrivilege 3544 wmic.exe Token: SeProfSingleProcessPrivilege 3544 wmic.exe Token: SeIncBasePriorityPrivilege 3544 wmic.exe Token: SeCreatePagefilePrivilege 3544 wmic.exe Token: SeBackupPrivilege 3544 wmic.exe Token: SeRestorePrivilege 3544 wmic.exe Token: SeShutdownPrivilege 3544 wmic.exe Token: SeDebugPrivilege 3544 wmic.exe Token: SeSystemEnvironmentPrivilege 3544 wmic.exe Token: SeRemoteShutdownPrivilege 3544 wmic.exe Token: SeUndockPrivilege 3544 wmic.exe Token: SeManageVolumePrivilege 3544 wmic.exe Token: 33 3544 wmic.exe Token: 34 3544 wmic.exe Token: 35 3544 wmic.exe Token: 36 3544 wmic.exe Token: SeBackupPrivilege 668 vssvc.exe Token: SeRestorePrivilege 668 vssvc.exe Token: SeAuditPrivilege 668 vssvc.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 -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3076 wrote to memory of 3544 3076 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 89 PID 3076 wrote to memory of 3544 3076 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 89 PID 3076 wrote to memory of 1640 3076 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 99 PID 3076 wrote to memory of 1640 3076 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 99
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:3076 -
C:\Windows\system32\wbem\wmic.exe"C:\nwdjk\etil\..\..\Windows\w\gyt\t\..\..\..\system32\lrxad\..\wbem\bd\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3544
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C:\Windows\system32\wbem\wmic.exe"C:\pmw\xqjqw\qune\..\..\..\Windows\rhxk\i\m\..\..\..\system32\k\..\wbem\np\jl\l\..\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1640
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:668
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x240 0x2f81⤵PID:2252