Analysis
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max time kernel
149s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20250129-en -
resource tags
arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system -
submitted
30/01/2025, 15:59
Static task
static1
Behavioral task
behavioral1
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win10v2004-20250129-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:\Users\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\t4x44h.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\t4x44h.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-1-5-21-805940606-1861219160-370298170-1000\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 3584 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 3584 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4520 wmic.exe Token: SeSecurityPrivilege 4520 wmic.exe Token: SeTakeOwnershipPrivilege 4520 wmic.exe Token: SeLoadDriverPrivilege 4520 wmic.exe Token: SeSystemProfilePrivilege 4520 wmic.exe Token: SeSystemtimePrivilege 4520 wmic.exe Token: SeProfSingleProcessPrivilege 4520 wmic.exe Token: SeIncBasePriorityPrivilege 4520 wmic.exe Token: SeCreatePagefilePrivilege 4520 wmic.exe Token: SeBackupPrivilege 4520 wmic.exe Token: SeRestorePrivilege 4520 wmic.exe Token: SeShutdownPrivilege 4520 wmic.exe Token: SeDebugPrivilege 4520 wmic.exe Token: SeSystemEnvironmentPrivilege 4520 wmic.exe Token: SeRemoteShutdownPrivilege 4520 wmic.exe Token: SeUndockPrivilege 4520 wmic.exe Token: SeManageVolumePrivilege 4520 wmic.exe Token: 33 4520 wmic.exe Token: 34 4520 wmic.exe Token: 35 4520 wmic.exe Token: 36 4520 wmic.exe Token: SeIncreaseQuotaPrivilege 4520 wmic.exe Token: SeSecurityPrivilege 4520 wmic.exe Token: SeTakeOwnershipPrivilege 4520 wmic.exe Token: SeLoadDriverPrivilege 4520 wmic.exe Token: SeSystemProfilePrivilege 4520 wmic.exe Token: SeSystemtimePrivilege 4520 wmic.exe Token: SeProfSingleProcessPrivilege 4520 wmic.exe Token: SeIncBasePriorityPrivilege 4520 wmic.exe Token: SeCreatePagefilePrivilege 4520 wmic.exe Token: SeBackupPrivilege 4520 wmic.exe Token: SeRestorePrivilege 4520 wmic.exe Token: SeShutdownPrivilege 4520 wmic.exe Token: SeDebugPrivilege 4520 wmic.exe Token: SeSystemEnvironmentPrivilege 4520 wmic.exe Token: SeRemoteShutdownPrivilege 4520 wmic.exe Token: SeUndockPrivilege 4520 wmic.exe Token: SeManageVolumePrivilege 4520 wmic.exe Token: 33 4520 wmic.exe Token: 34 4520 wmic.exe Token: 35 4520 wmic.exe Token: 36 4520 wmic.exe Token: SeBackupPrivilege 3604 vssvc.exe Token: SeRestorePrivilege 3604 vssvc.exe Token: SeAuditPrivilege 3604 vssvc.exe Token: SeIncreaseQuotaPrivilege 2388 wmic.exe Token: SeSecurityPrivilege 2388 wmic.exe Token: SeTakeOwnershipPrivilege 2388 wmic.exe Token: SeLoadDriverPrivilege 2388 wmic.exe Token: SeSystemProfilePrivilege 2388 wmic.exe Token: SeSystemtimePrivilege 2388 wmic.exe Token: SeProfSingleProcessPrivilege 2388 wmic.exe Token: SeIncBasePriorityPrivilege 2388 wmic.exe Token: SeCreatePagefilePrivilege 2388 wmic.exe Token: SeBackupPrivilege 2388 wmic.exe Token: SeRestorePrivilege 2388 wmic.exe Token: SeShutdownPrivilege 2388 wmic.exe Token: SeDebugPrivilege 2388 wmic.exe Token: SeSystemEnvironmentPrivilege 2388 wmic.exe Token: SeRemoteShutdownPrivilege 2388 wmic.exe Token: SeUndockPrivilege 2388 wmic.exe Token: SeManageVolumePrivilege 2388 wmic.exe Token: 33 2388 wmic.exe Token: 34 2388 wmic.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3584 wrote to memory of 4520 3584 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 85 PID 3584 wrote to memory of 4520 3584 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 85 PID 3584 wrote to memory of 2388 3584 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 91 PID 3584 wrote to memory of 2388 3584 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 91 -
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:3584 -
C:\Windows\system32\wbem\wmic.exe"C:\ofsm\gipe\eikq\..\..\..\Windows\pxat\tay\..\..\system32\y\hhn\amjwj\..\..\..\wbem\tb\xvrm\iysb\..\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4520
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C:\Windows\system32\wbem\wmic.exe"C:\fn\i\iobxa\..\..\..\Windows\k\weqij\..\..\system32\frma\..\wbem\u\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2388
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3604
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x4bc 0x3041⤵PID:1196
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_9910FF882EF644719F121F10AD8A97AA.dat
Filesize940B
MD539b862c51edeb85c61ce731bee470b7f
SHA10f8fdfecab91f8646248dd7adeb227247073acc7
SHA256841e9aaa6b8ab41f33d178822304b81e88729962bcae6c3cf3fdf1b12e92086d
SHA512e17e764c1b449936b35a7e9b959e80f15ab3938deed6760bc7987007c2da4d85ef079b198d90b6b57416354e3301dfe7b601315032c258212a41a15e0b663c8b
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Filesize
6KB
MD52acfbaf1838dbdfa1f7ea1017fdb4f6e
SHA125564dcff111c47971adbfae6fa6c581ab294c33
SHA2567c0849f426c2b55bb7c61b7e2fa66ce761d6e068c5b9ad302a5fb50932f731d7
SHA512e16fb7a427b3a2459df04ecd91e1bf56c7d606e02cca007a3a1f66b314a3379aa548af3f810696878c4a701b55ad58054f54e29a03b96ab1037aa0b14c4b7704