Analysis
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max time kernel
819s -
max time network
794s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-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
F:\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\vw106ob.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\vw106ob.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-1-5-21-2703099537-420551529-3771253338-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\123456789.bmp" e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
System Location Discovery: System Language Discovery 1 TTPs 4 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DllHost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DllHost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DllHost.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2124 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2984 wmic.exe Token: SeSecurityPrivilege 2984 wmic.exe Token: SeTakeOwnershipPrivilege 2984 wmic.exe Token: SeLoadDriverPrivilege 2984 wmic.exe Token: SeSystemProfilePrivilege 2984 wmic.exe Token: SeSystemtimePrivilege 2984 wmic.exe Token: SeProfSingleProcessPrivilege 2984 wmic.exe Token: SeIncBasePriorityPrivilege 2984 wmic.exe Token: SeCreatePagefilePrivilege 2984 wmic.exe Token: SeBackupPrivilege 2984 wmic.exe Token: SeRestorePrivilege 2984 wmic.exe Token: SeShutdownPrivilege 2984 wmic.exe Token: SeDebugPrivilege 2984 wmic.exe Token: SeSystemEnvironmentPrivilege 2984 wmic.exe Token: SeRemoteShutdownPrivilege 2984 wmic.exe Token: SeUndockPrivilege 2984 wmic.exe Token: SeManageVolumePrivilege 2984 wmic.exe Token: 33 2984 wmic.exe Token: 34 2984 wmic.exe Token: 35 2984 wmic.exe Token: SeIncreaseQuotaPrivilege 2984 wmic.exe Token: SeSecurityPrivilege 2984 wmic.exe Token: SeTakeOwnershipPrivilege 2984 wmic.exe Token: SeLoadDriverPrivilege 2984 wmic.exe Token: SeSystemProfilePrivilege 2984 wmic.exe Token: SeSystemtimePrivilege 2984 wmic.exe Token: SeProfSingleProcessPrivilege 2984 wmic.exe Token: SeIncBasePriorityPrivilege 2984 wmic.exe Token: SeCreatePagefilePrivilege 2984 wmic.exe Token: SeBackupPrivilege 2984 wmic.exe Token: SeRestorePrivilege 2984 wmic.exe Token: SeShutdownPrivilege 2984 wmic.exe Token: SeDebugPrivilege 2984 wmic.exe Token: SeSystemEnvironmentPrivilege 2984 wmic.exe Token: SeRemoteShutdownPrivilege 2984 wmic.exe Token: SeUndockPrivilege 2984 wmic.exe Token: SeManageVolumePrivilege 2984 wmic.exe Token: 33 2984 wmic.exe Token: 34 2984 wmic.exe Token: 35 2984 wmic.exe Token: SeBackupPrivilege 2772 vssvc.exe Token: SeRestorePrivilege 2772 vssvc.exe Token: SeAuditPrivilege 2772 vssvc.exe Token: SeIncreaseQuotaPrivilege 2224 wmic.exe Token: SeSecurityPrivilege 2224 wmic.exe Token: SeTakeOwnershipPrivilege 2224 wmic.exe Token: SeLoadDriverPrivilege 2224 wmic.exe Token: SeSystemProfilePrivilege 2224 wmic.exe Token: SeSystemtimePrivilege 2224 wmic.exe Token: SeProfSingleProcessPrivilege 2224 wmic.exe Token: SeIncBasePriorityPrivilege 2224 wmic.exe Token: SeCreatePagefilePrivilege 2224 wmic.exe Token: SeBackupPrivilege 2224 wmic.exe Token: SeRestorePrivilege 2224 wmic.exe Token: SeShutdownPrivilege 2224 wmic.exe Token: SeDebugPrivilege 2224 wmic.exe Token: SeSystemEnvironmentPrivilege 2224 wmic.exe Token: SeRemoteShutdownPrivilege 2224 wmic.exe Token: SeUndockPrivilege 2224 wmic.exe Token: SeManageVolumePrivilege 2224 wmic.exe Token: 33 2224 wmic.exe Token: 34 2224 wmic.exe Token: 35 2224 wmic.exe Token: SeIncreaseQuotaPrivilege 2224 wmic.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2124 wrote to memory of 2984 2124 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 29 PID 2124 wrote to memory of 2984 2124 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 29 PID 2124 wrote to memory of 2984 2124 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 29 PID 2124 wrote to memory of 2984 2124 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 29 PID 2124 wrote to memory of 2224 2124 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 35 PID 2124 wrote to memory of 2224 2124 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 35 PID 2124 wrote to memory of 2224 2124 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 35 PID 2124 wrote to memory of 2224 2124 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 35 -
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:2124 -
C:\Windows\system32\wbem\wmic.exe"C:\w\hkuf\gh\..\..\..\Windows\gwuq\..\system32\yk\b\..\..\wbem\es\hqkkj\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2984
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C:\Windows\system32\wbem\wmic.exe"C:\aqdch\..\Windows\w\eu\..\..\system32\yrrb\..\wbem\phh\yqm\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2224
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2772
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵
- System Location Discovery: System Language Discovery
PID:2820
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x4a41⤵PID:2676
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵
- System Location Discovery: System Language Discovery
PID:2336
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x5141⤵PID:1452
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}1⤵
- System Location Discovery: System Language Discovery
PID:1180
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x5d01⤵PID:2896
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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C:\Users\Admin\AppData\Roaming\Microsoft\Speech\Files\UserLexicons\SP_E6E1364E5808451B9F25B49C83C76952.dat
Filesize940B
MD5d339afc8bc0c101ca7001f354d0285ab
SHA1f60fd959e4702b9bdbcfad7b9b1c124b6d03c71c
SHA256c1d46d922f6f027abef18b5ae9bca6dca34c9c2e27fc978f5ba9529ccb52d19a
SHA5129942d4d29bfa1d6d15f8715a10c83a628d3e454278932eb65730831bea5c43faf606cd74acfa9f46b290d16f9b508fad77d61837c1be6874e00f852376e39637
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Filesize
6KB
MD59928989ecc9090db49d29109e8139b3f
SHA19dfb064af17492f9b5743aee4f48dd642ff80628
SHA2564dd77cef34a3558756940b97681d238afe3cb95461cab56f96cf61eae4977107
SHA512dc798263153154eea62ce8589ea5c0ec209d0855bd0ae61a4dbdc83dbfe0ad19f62c89fa3a0f6e2464930137b7219d92e38428d73e48c15da6b1060deaa46412