Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220721-en -
resource tags
arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system -
submitted
26-07-2022 23:20
Static task
static1
Behavioral task
behavioral1
Sample
f83fb9ce6a83da58b20685c1d7e1e546.zip
Resource
win7-20220715-en
Behavioral task
behavioral2
Sample
f83fb9ce6a83da58b20685c1d7e1e546.zip
Resource
win10v2004-20220721-en
Behavioral task
behavioral3
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win7-20220715-en
Behavioral task
behavioral4
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win10v2004-20220721-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 4 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\JoinPush.raw => C:\Users\Admin\Pictures\JoinPush.raw.PV0SC e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File opened for modification C:\Users\Admin\Pictures\MovePing.tiff e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\MovePing.tiff => C:\Users\Admin\Pictures\MovePing.tiff.PV0SC e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\SetConvertTo.raw => C:\Users\Admin\Pictures\SetConvertTo.raw.6FyTXg e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Drops startup file 4 IoCs
description ioc Process 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\jdvmfp5.dat e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 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\jdvmfp5.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-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\123456789.bmp" e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4532 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 4532 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 224 wmic.exe Token: SeSecurityPrivilege 224 wmic.exe Token: SeTakeOwnershipPrivilege 224 wmic.exe Token: SeLoadDriverPrivilege 224 wmic.exe Token: SeSystemProfilePrivilege 224 wmic.exe Token: SeSystemtimePrivilege 224 wmic.exe Token: SeProfSingleProcessPrivilege 224 wmic.exe Token: SeIncBasePriorityPrivilege 224 wmic.exe Token: SeCreatePagefilePrivilege 224 wmic.exe Token: SeBackupPrivilege 224 wmic.exe Token: SeRestorePrivilege 224 wmic.exe Token: SeShutdownPrivilege 224 wmic.exe Token: SeDebugPrivilege 224 wmic.exe Token: SeSystemEnvironmentPrivilege 224 wmic.exe Token: SeRemoteShutdownPrivilege 224 wmic.exe Token: SeUndockPrivilege 224 wmic.exe Token: SeManageVolumePrivilege 224 wmic.exe Token: 33 224 wmic.exe Token: 34 224 wmic.exe Token: 35 224 wmic.exe Token: 36 224 wmic.exe Token: SeIncreaseQuotaPrivilege 224 wmic.exe Token: SeSecurityPrivilege 224 wmic.exe Token: SeTakeOwnershipPrivilege 224 wmic.exe Token: SeLoadDriverPrivilege 224 wmic.exe Token: SeSystemProfilePrivilege 224 wmic.exe Token: SeSystemtimePrivilege 224 wmic.exe Token: SeProfSingleProcessPrivilege 224 wmic.exe Token: SeIncBasePriorityPrivilege 224 wmic.exe Token: SeCreatePagefilePrivilege 224 wmic.exe Token: SeBackupPrivilege 224 wmic.exe Token: SeRestorePrivilege 224 wmic.exe Token: SeShutdownPrivilege 224 wmic.exe Token: SeDebugPrivilege 224 wmic.exe Token: SeSystemEnvironmentPrivilege 224 wmic.exe Token: SeRemoteShutdownPrivilege 224 wmic.exe Token: SeUndockPrivilege 224 wmic.exe Token: SeManageVolumePrivilege 224 wmic.exe Token: 33 224 wmic.exe Token: 34 224 wmic.exe Token: 35 224 wmic.exe Token: 36 224 wmic.exe Token: SeBackupPrivilege 3620 vssvc.exe Token: SeRestorePrivilege 3620 vssvc.exe Token: SeAuditPrivilege 3620 vssvc.exe Token: SeIncreaseQuotaPrivilege 2496 wmic.exe Token: SeSecurityPrivilege 2496 wmic.exe Token: SeTakeOwnershipPrivilege 2496 wmic.exe Token: SeLoadDriverPrivilege 2496 wmic.exe Token: SeSystemProfilePrivilege 2496 wmic.exe Token: SeSystemtimePrivilege 2496 wmic.exe Token: SeProfSingleProcessPrivilege 2496 wmic.exe Token: SeIncBasePriorityPrivilege 2496 wmic.exe Token: SeCreatePagefilePrivilege 2496 wmic.exe Token: SeBackupPrivilege 2496 wmic.exe Token: SeRestorePrivilege 2496 wmic.exe Token: SeShutdownPrivilege 2496 wmic.exe Token: SeDebugPrivilege 2496 wmic.exe Token: SeSystemEnvironmentPrivilege 2496 wmic.exe Token: SeRemoteShutdownPrivilege 2496 wmic.exe Token: SeUndockPrivilege 2496 wmic.exe Token: SeManageVolumePrivilege 2496 wmic.exe Token: 33 2496 wmic.exe Token: 34 2496 wmic.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4532 wrote to memory of 224 4532 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 81 PID 4532 wrote to memory of 224 4532 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 81 PID 4532 wrote to memory of 2496 4532 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 89 PID 4532 wrote to memory of 2496 4532 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 89
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:4532 -
C:\Windows\system32\wbem\wmic.exe"C:\wu\kh\ugh\..\..\..\Windows\t\jgxd\k\..\..\..\system32\nvk\tad\kpxl\..\..\..\wbem\vb\fm\qhk\..\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:224
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C:\Windows\system32\wbem\wmic.exe"C:\aep\pige\n\..\..\..\Windows\efv\..\system32\oll\u\ddarf\..\..\..\wbem\n\ux\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2496
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3620
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x150 0x4041⤵PID:1352