Analysis
-
max time kernel
141s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
27-10-2022 04:32
Static task
static1
Behavioral task
behavioral1
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win10v2004-20220812-en
General
-
Target
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
-
Size
473KB
-
MD5
f83fb9ce6a83da58b20685c1d7e1e546
-
SHA1
01c459b549c1c2a68208d38d4ba5e36d29212a4f
-
SHA256
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684
-
SHA512
934ec9073a28b90e8df785bef49f224789da59f83729208b92dba0503e2894b3f48ed04b20de1ba49374b1cd26f0c87e8e5ab79e817258135e3be2c171f3f396
-
SSDEEP
12288:v6l/7FpnaeoQbRLBYdunMCayql4YcQD+AgJbAWgjbgpQ:CDna43YAKl4Yci+AggEpQ
Malware Config
Extracted
C:\DECRYPT-FILES.html
Signatures
-
Maze
Ransomware family also known as ChaCha.
-
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Modifies extensions of user files 6 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exedescription ioc process File renamed C:\Users\Admin\Pictures\RegisterMerge.png => C:\Users\Admin\Pictures\RegisterMerge.png.Uhbt03Q e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\ConvertToHide.png => C:\Users\Admin\Pictures\ConvertToHide.png.T7A7Kd e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\DismountEnter.tif => C:\Users\Admin\Pictures\DismountEnter.tif.T7A7Kd e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\LimitMeasure.png => C:\Users\Admin\Pictures\LimitMeasure.png.Jmldq4 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\MeasureClose.crw => C:\Users\Admin\Pictures\MeasureClose.crw.Uhbt03Q e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\MergeSearch.crw => C:\Users\Admin\Pictures\MergeSearch.crw.Uhbt03Q 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\ysbrcbomz.dat e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\123456789.bmp" e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exepid process 1348 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
wmic.exevssvc.exewmic.exedescription pid process Token: SeIncreaseQuotaPrivilege 736 wmic.exe Token: SeSecurityPrivilege 736 wmic.exe Token: SeTakeOwnershipPrivilege 736 wmic.exe Token: SeLoadDriverPrivilege 736 wmic.exe Token: SeSystemProfilePrivilege 736 wmic.exe Token: SeSystemtimePrivilege 736 wmic.exe Token: SeProfSingleProcessPrivilege 736 wmic.exe Token: SeIncBasePriorityPrivilege 736 wmic.exe Token: SeCreatePagefilePrivilege 736 wmic.exe Token: SeBackupPrivilege 736 wmic.exe Token: SeRestorePrivilege 736 wmic.exe Token: SeShutdownPrivilege 736 wmic.exe Token: SeDebugPrivilege 736 wmic.exe Token: SeSystemEnvironmentPrivilege 736 wmic.exe Token: SeRemoteShutdownPrivilege 736 wmic.exe Token: SeUndockPrivilege 736 wmic.exe Token: SeManageVolumePrivilege 736 wmic.exe Token: 33 736 wmic.exe Token: 34 736 wmic.exe Token: 35 736 wmic.exe Token: SeIncreaseQuotaPrivilege 736 wmic.exe Token: SeSecurityPrivilege 736 wmic.exe Token: SeTakeOwnershipPrivilege 736 wmic.exe Token: SeLoadDriverPrivilege 736 wmic.exe Token: SeSystemProfilePrivilege 736 wmic.exe Token: SeSystemtimePrivilege 736 wmic.exe Token: SeProfSingleProcessPrivilege 736 wmic.exe Token: SeIncBasePriorityPrivilege 736 wmic.exe Token: SeCreatePagefilePrivilege 736 wmic.exe Token: SeBackupPrivilege 736 wmic.exe Token: SeRestorePrivilege 736 wmic.exe Token: SeShutdownPrivilege 736 wmic.exe Token: SeDebugPrivilege 736 wmic.exe Token: SeSystemEnvironmentPrivilege 736 wmic.exe Token: SeRemoteShutdownPrivilege 736 wmic.exe Token: SeUndockPrivilege 736 wmic.exe Token: SeManageVolumePrivilege 736 wmic.exe Token: 33 736 wmic.exe Token: 34 736 wmic.exe Token: 35 736 wmic.exe Token: SeBackupPrivilege 1796 vssvc.exe Token: SeRestorePrivilege 1796 vssvc.exe Token: SeAuditPrivilege 1796 vssvc.exe Token: SeIncreaseQuotaPrivilege 1096 wmic.exe Token: SeSecurityPrivilege 1096 wmic.exe Token: SeTakeOwnershipPrivilege 1096 wmic.exe Token: SeLoadDriverPrivilege 1096 wmic.exe Token: SeSystemProfilePrivilege 1096 wmic.exe Token: SeSystemtimePrivilege 1096 wmic.exe Token: SeProfSingleProcessPrivilege 1096 wmic.exe Token: SeIncBasePriorityPrivilege 1096 wmic.exe Token: SeCreatePagefilePrivilege 1096 wmic.exe Token: SeBackupPrivilege 1096 wmic.exe Token: SeRestorePrivilege 1096 wmic.exe Token: SeShutdownPrivilege 1096 wmic.exe Token: SeDebugPrivilege 1096 wmic.exe Token: SeSystemEnvironmentPrivilege 1096 wmic.exe Token: SeRemoteShutdownPrivilege 1096 wmic.exe Token: SeUndockPrivilege 1096 wmic.exe Token: SeManageVolumePrivilege 1096 wmic.exe Token: 33 1096 wmic.exe Token: 34 1096 wmic.exe Token: 35 1096 wmic.exe Token: SeIncreaseQuotaPrivilege 1096 wmic.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exedescription pid process target process PID 1348 wrote to memory of 736 1348 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe PID 1348 wrote to memory of 736 1348 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe PID 1348 wrote to memory of 736 1348 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe PID 1348 wrote to memory of 736 1348 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe PID 1348 wrote to memory of 1096 1348 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe PID 1348 wrote to memory of 1096 1348 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe PID 1348 wrote to memory of 1096 1348 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe PID 1348 wrote to memory of 1096 1348 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe wmic.exe
Processes
-
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:1348 -
C:\Windows\system32\wbem\wmic.exe"C:\scx\..\Windows\sptet\..\system32\etx\vggl\yo\..\..\..\wbem\nwi\ehbyx\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:736
-
-
C:\Windows\system32\wbem\wmic.exe"C:\htkoi\a\kmouu\..\..\..\Windows\umspd\p\..\..\system32\aonpe\..\wbem\ver\m\l\..\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1096
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1796
-
C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵PID:1020
-
C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x5281⤵PID:668