Analysis
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max time kernel
422s -
max time network
421s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
30/01/2025, 15:39
Static task
static1
Behavioral task
behavioral1
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win10v2004-20241007-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:\$Recycle.Bin\S-1-5-21-3756129449-3121373848-4276368241-1000\DECRYPT-FILES.html
Signatures
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Maze
Ransomware family also known as ChaCha.
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Maze family
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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
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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\8w8qhalr.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\8w8qhalr.dat e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Reads user/profile data of web browsers 3 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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\123456789.bmp" e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4364 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 4364 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4320 wmic.exe Token: SeSecurityPrivilege 4320 wmic.exe Token: SeTakeOwnershipPrivilege 4320 wmic.exe Token: SeLoadDriverPrivilege 4320 wmic.exe Token: SeSystemProfilePrivilege 4320 wmic.exe Token: SeSystemtimePrivilege 4320 wmic.exe Token: SeProfSingleProcessPrivilege 4320 wmic.exe Token: SeIncBasePriorityPrivilege 4320 wmic.exe Token: SeCreatePagefilePrivilege 4320 wmic.exe Token: SeBackupPrivilege 4320 wmic.exe Token: SeRestorePrivilege 4320 wmic.exe Token: SeShutdownPrivilege 4320 wmic.exe Token: SeDebugPrivilege 4320 wmic.exe Token: SeSystemEnvironmentPrivilege 4320 wmic.exe Token: SeRemoteShutdownPrivilege 4320 wmic.exe Token: SeUndockPrivilege 4320 wmic.exe Token: SeManageVolumePrivilege 4320 wmic.exe Token: 33 4320 wmic.exe Token: 34 4320 wmic.exe Token: 35 4320 wmic.exe Token: 36 4320 wmic.exe Token: SeIncreaseQuotaPrivilege 4320 wmic.exe Token: SeSecurityPrivilege 4320 wmic.exe Token: SeTakeOwnershipPrivilege 4320 wmic.exe Token: SeLoadDriverPrivilege 4320 wmic.exe Token: SeSystemProfilePrivilege 4320 wmic.exe Token: SeSystemtimePrivilege 4320 wmic.exe Token: SeProfSingleProcessPrivilege 4320 wmic.exe Token: SeIncBasePriorityPrivilege 4320 wmic.exe Token: SeCreatePagefilePrivilege 4320 wmic.exe Token: SeBackupPrivilege 4320 wmic.exe Token: SeRestorePrivilege 4320 wmic.exe Token: SeShutdownPrivilege 4320 wmic.exe Token: SeDebugPrivilege 4320 wmic.exe Token: SeSystemEnvironmentPrivilege 4320 wmic.exe Token: SeRemoteShutdownPrivilege 4320 wmic.exe Token: SeUndockPrivilege 4320 wmic.exe Token: SeManageVolumePrivilege 4320 wmic.exe Token: 33 4320 wmic.exe Token: 34 4320 wmic.exe Token: 35 4320 wmic.exe Token: 36 4320 wmic.exe Token: SeBackupPrivilege 5116 vssvc.exe Token: SeRestorePrivilege 5116 vssvc.exe Token: SeAuditPrivilege 5116 vssvc.exe Token: SeIncreaseQuotaPrivilege 760 wmic.exe Token: SeSecurityPrivilege 760 wmic.exe Token: SeTakeOwnershipPrivilege 760 wmic.exe Token: SeLoadDriverPrivilege 760 wmic.exe Token: SeSystemProfilePrivilege 760 wmic.exe Token: SeSystemtimePrivilege 760 wmic.exe Token: SeProfSingleProcessPrivilege 760 wmic.exe Token: SeIncBasePriorityPrivilege 760 wmic.exe Token: SeCreatePagefilePrivilege 760 wmic.exe Token: SeBackupPrivilege 760 wmic.exe Token: SeRestorePrivilege 760 wmic.exe Token: SeShutdownPrivilege 760 wmic.exe Token: SeDebugPrivilege 760 wmic.exe Token: SeSystemEnvironmentPrivilege 760 wmic.exe Token: SeRemoteShutdownPrivilege 760 wmic.exe Token: SeUndockPrivilege 760 wmic.exe Token: SeManageVolumePrivilege 760 wmic.exe Token: 33 760 wmic.exe Token: 34 760 wmic.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4364 wrote to memory of 4320 4364 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 83 PID 4364 wrote to memory of 4320 4364 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 83 PID 4364 wrote to memory of 760 4364 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 95 PID 4364 wrote to memory of 760 4364 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 95 -
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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4364 -
C:\Windows\system32\wbem\wmic.exe"C:\a\cacs\..\..\Windows\oay\..\system32\al\rf\..\..\wbem\ectt\aj\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4320
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C:\Windows\system32\wbem\wmic.exe"C:\pqtm\..\Windows\ejpff\iehd\oyl\..\..\..\system32\mg\..\wbem\j\hn\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:760
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5116
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x480 0x50c1⤵PID:3580
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x480 0x50c1⤵PID:1388
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
6KB
MD534b26097553eae5f972b6f93f9de8b95
SHA1ca802def00631fa03e9c81757e94ab7970bbeb0e
SHA25623e1034170f08412f71fc2c1b4143ea0b1b807a62f99ea4be0b1cf5b148258e8
SHA512fca6e968ba14fc3e547a580e5de3089d5a3292e76299a9b7befc1b9c80b63320741faa97fdf0bd4084642e8f3bede279a4a34aee0849524ed69f51eb3aac8269
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C:\Users\Admin\AppData\Roaming\Microsoft\Speech\Files\UserLexicons\SP_FFCF61FDA7A148D998758EC5DA1E7118.dat
Filesize940B
MD5df21272d13b6dd260e0efb14612ab933
SHA11a3229f312af1a19b4d08d257107aac6c0602217
SHA25668d15d148746ddba3ad51bb146efd490ecdd13f8cf761ea5f358df6c84bb0e24
SHA51202b21c5618cfb065d6ecb0b055e170c8fba87931b5612c56db38daa1f3d8cd597271074269041ad2c12dafe2e4e18c19b0523605e5e00d897b0cb8091a81b33a