Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-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
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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 3 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exedescription ioc Process File renamed C:\Users\Admin\Pictures\RepairDeny.crw => C:\Users\Admin\Pictures\RepairDeny.crw.ALjLHe e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\UndoShow.crw => C:\Users\Admin\Pictures\UndoShow.crw.QPcAGwg e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\WaitTrace.crw => C:\Users\Admin\Pictures\WaitTrace.crw.QPcAGwg e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Drops startup file 4 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\47h7q2a.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\47h7q2a.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
Processes:
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\123456789.bmp" e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exepid Process 1336 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 1336 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
wmic.exevssvc.exewmic.exedescription pid Process Token: SeIncreaseQuotaPrivilege 512 wmic.exe Token: SeSecurityPrivilege 512 wmic.exe Token: SeTakeOwnershipPrivilege 512 wmic.exe Token: SeLoadDriverPrivilege 512 wmic.exe Token: SeSystemProfilePrivilege 512 wmic.exe Token: SeSystemtimePrivilege 512 wmic.exe Token: SeProfSingleProcessPrivilege 512 wmic.exe Token: SeIncBasePriorityPrivilege 512 wmic.exe Token: SeCreatePagefilePrivilege 512 wmic.exe Token: SeBackupPrivilege 512 wmic.exe Token: SeRestorePrivilege 512 wmic.exe Token: SeShutdownPrivilege 512 wmic.exe Token: SeDebugPrivilege 512 wmic.exe Token: SeSystemEnvironmentPrivilege 512 wmic.exe Token: SeRemoteShutdownPrivilege 512 wmic.exe Token: SeUndockPrivilege 512 wmic.exe Token: SeManageVolumePrivilege 512 wmic.exe Token: 33 512 wmic.exe Token: 34 512 wmic.exe Token: 35 512 wmic.exe Token: 36 512 wmic.exe Token: SeIncreaseQuotaPrivilege 512 wmic.exe Token: SeSecurityPrivilege 512 wmic.exe Token: SeTakeOwnershipPrivilege 512 wmic.exe Token: SeLoadDriverPrivilege 512 wmic.exe Token: SeSystemProfilePrivilege 512 wmic.exe Token: SeSystemtimePrivilege 512 wmic.exe Token: SeProfSingleProcessPrivilege 512 wmic.exe Token: SeIncBasePriorityPrivilege 512 wmic.exe Token: SeCreatePagefilePrivilege 512 wmic.exe Token: SeBackupPrivilege 512 wmic.exe Token: SeRestorePrivilege 512 wmic.exe Token: SeShutdownPrivilege 512 wmic.exe Token: SeDebugPrivilege 512 wmic.exe Token: SeSystemEnvironmentPrivilege 512 wmic.exe Token: SeRemoteShutdownPrivilege 512 wmic.exe Token: SeUndockPrivilege 512 wmic.exe Token: SeManageVolumePrivilege 512 wmic.exe Token: 33 512 wmic.exe Token: 34 512 wmic.exe Token: 35 512 wmic.exe Token: 36 512 wmic.exe Token: SeBackupPrivilege 3600 vssvc.exe Token: SeRestorePrivilege 3600 vssvc.exe Token: SeAuditPrivilege 3600 vssvc.exe Token: SeIncreaseQuotaPrivilege 1648 wmic.exe Token: SeSecurityPrivilege 1648 wmic.exe Token: SeTakeOwnershipPrivilege 1648 wmic.exe Token: SeLoadDriverPrivilege 1648 wmic.exe Token: SeSystemProfilePrivilege 1648 wmic.exe Token: SeSystemtimePrivilege 1648 wmic.exe Token: SeProfSingleProcessPrivilege 1648 wmic.exe Token: SeIncBasePriorityPrivilege 1648 wmic.exe Token: SeCreatePagefilePrivilege 1648 wmic.exe Token: SeBackupPrivilege 1648 wmic.exe Token: SeRestorePrivilege 1648 wmic.exe Token: SeShutdownPrivilege 1648 wmic.exe Token: SeDebugPrivilege 1648 wmic.exe Token: SeSystemEnvironmentPrivilege 1648 wmic.exe Token: SeRemoteShutdownPrivilege 1648 wmic.exe Token: SeUndockPrivilege 1648 wmic.exe Token: SeManageVolumePrivilege 1648 wmic.exe Token: 33 1648 wmic.exe Token: 34 1648 wmic.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exedescription pid Process procid_target PID 1336 wrote to memory of 512 1336 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 85 PID 1336 wrote to memory of 512 1336 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 85 PID 1336 wrote to memory of 1648 1336 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 93 PID 1336 wrote to memory of 1648 1336 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:1336 -
C:\Windows\system32\wbem\wmic.exe"C:\rrujt\..\Windows\esa\..\system32\saja\..\wbem\o\rg\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:512
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C:\Windows\system32\wbem\wmic.exe"C:\no\ffdm\bvm\..\..\..\Windows\l\wd\..\..\system32\bbl\li\io\..\..\..\wbem\tobj\ptw\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1648
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3600
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x4f8 0x4c81⤵PID:4504