Analysis
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max time kernel
151s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
04-03-2024 22:16
Static task
static1
Behavioral task
behavioral1
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win10v2004-20240226-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:\odt\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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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\jh8hk.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\jh8hk.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-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\123456789.bmp" e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2496 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 2496 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3456 wmic.exe Token: SeSecurityPrivilege 3456 wmic.exe Token: SeTakeOwnershipPrivilege 3456 wmic.exe Token: SeLoadDriverPrivilege 3456 wmic.exe Token: SeSystemProfilePrivilege 3456 wmic.exe Token: SeSystemtimePrivilege 3456 wmic.exe Token: SeProfSingleProcessPrivilege 3456 wmic.exe Token: SeIncBasePriorityPrivilege 3456 wmic.exe Token: SeCreatePagefilePrivilege 3456 wmic.exe Token: SeBackupPrivilege 3456 wmic.exe Token: SeRestorePrivilege 3456 wmic.exe Token: SeShutdownPrivilege 3456 wmic.exe Token: SeDebugPrivilege 3456 wmic.exe Token: SeSystemEnvironmentPrivilege 3456 wmic.exe Token: SeRemoteShutdownPrivilege 3456 wmic.exe Token: SeUndockPrivilege 3456 wmic.exe Token: SeManageVolumePrivilege 3456 wmic.exe Token: 33 3456 wmic.exe Token: 34 3456 wmic.exe Token: 35 3456 wmic.exe Token: 36 3456 wmic.exe Token: SeIncreaseQuotaPrivilege 3456 wmic.exe Token: SeSecurityPrivilege 3456 wmic.exe Token: SeTakeOwnershipPrivilege 3456 wmic.exe Token: SeLoadDriverPrivilege 3456 wmic.exe Token: SeSystemProfilePrivilege 3456 wmic.exe Token: SeSystemtimePrivilege 3456 wmic.exe Token: SeProfSingleProcessPrivilege 3456 wmic.exe Token: SeIncBasePriorityPrivilege 3456 wmic.exe Token: SeCreatePagefilePrivilege 3456 wmic.exe Token: SeBackupPrivilege 3456 wmic.exe Token: SeRestorePrivilege 3456 wmic.exe Token: SeShutdownPrivilege 3456 wmic.exe Token: SeDebugPrivilege 3456 wmic.exe Token: SeSystemEnvironmentPrivilege 3456 wmic.exe Token: SeRemoteShutdownPrivilege 3456 wmic.exe Token: SeUndockPrivilege 3456 wmic.exe Token: SeManageVolumePrivilege 3456 wmic.exe Token: 33 3456 wmic.exe Token: 34 3456 wmic.exe Token: 35 3456 wmic.exe Token: 36 3456 wmic.exe Token: SeBackupPrivilege 1400 vssvc.exe Token: SeRestorePrivilege 1400 vssvc.exe Token: SeAuditPrivilege 1400 vssvc.exe Token: SeIncreaseQuotaPrivilege 2932 wmic.exe Token: SeSecurityPrivilege 2932 wmic.exe Token: SeTakeOwnershipPrivilege 2932 wmic.exe Token: SeLoadDriverPrivilege 2932 wmic.exe Token: SeSystemProfilePrivilege 2932 wmic.exe Token: SeSystemtimePrivilege 2932 wmic.exe Token: SeProfSingleProcessPrivilege 2932 wmic.exe Token: SeIncBasePriorityPrivilege 2932 wmic.exe Token: SeCreatePagefilePrivilege 2932 wmic.exe Token: SeBackupPrivilege 2932 wmic.exe Token: SeRestorePrivilege 2932 wmic.exe Token: SeShutdownPrivilege 2932 wmic.exe Token: SeDebugPrivilege 2932 wmic.exe Token: SeSystemEnvironmentPrivilege 2932 wmic.exe Token: SeRemoteShutdownPrivilege 2932 wmic.exe Token: SeUndockPrivilege 2932 wmic.exe Token: SeManageVolumePrivilege 2932 wmic.exe Token: 33 2932 wmic.exe Token: 34 2932 wmic.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2496 wrote to memory of 3456 2496 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 90 PID 2496 wrote to memory of 3456 2496 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 90 PID 2496 wrote to memory of 2932 2496 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 108 PID 2496 wrote to memory of 2932 2496 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 108 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe"C:\Users\Admin\AppData\Local\Temp\e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe"1⤵
- Drops startup file
- Sets desktop wallpaper using registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2496 -
C:\Windows\system32\wbem\wmic.exe"C:\oea\d\oidp\..\..\..\Windows\sgqgo\w\go\..\..\..\system32\qtsjf\..\wbem\vb\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3456
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C:\Windows\system32\wbem\wmic.exe"C:\l\t\..\..\Windows\cj\..\system32\kp\..\wbem\wcd\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2932
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1400
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x520 0x4801⤵PID:5108
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Speech\Files\UserLexicons\SP_CE92CD3849024A8AA68842FF8DE52B7E.dat
Filesize940B
MD589dcd73f5434460665f069c378c21de7
SHA198f8f82bc6e24ed996c89e3824f769f34a4dac37
SHA256857f1607f09f401fd315c1221b96ab28c3c9184ce9293252ec4f0dcdb3f5e96c
SHA512d75bce9f95e8bd02ab9ba169c4c1b896a67f2e735acd238adc311a2c0020b86a7f10302f08f2bb44e2453fabadf4cde2cc0348f386aaeaa5b23dc3d2ac62e2e2
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Filesize
6KB
MD5eaa9bab911cfb7c7404a9c61b6e3841f
SHA1e2942e7cd7b41289e0cc1b0fd4fa44ee319dd2f8
SHA2560cc0337b2dbd2852b0f5d363451a427118e0c93fca2c665c1a49a4e06c78e419
SHA5126b6d991331d8032d8ed4e07c6cd57ca62be9c876acf8bc2588cc937a96cd82a28106564b79b866ede0d21889061e299b852e24dec9eaa25fa9786e1e1db48b00