Analysis
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max time kernel
140s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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:\$Recycle.Bin\S-1-5-21-3533259084-2542256011-65585152-1000\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\3quzvf8ro.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\3quzvf8ro.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-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\123456789.bmp" e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 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 -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2504 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2456 wmic.exe Token: SeSecurityPrivilege 2456 wmic.exe Token: SeTakeOwnershipPrivilege 2456 wmic.exe Token: SeLoadDriverPrivilege 2456 wmic.exe Token: SeSystemProfilePrivilege 2456 wmic.exe Token: SeSystemtimePrivilege 2456 wmic.exe Token: SeProfSingleProcessPrivilege 2456 wmic.exe Token: SeIncBasePriorityPrivilege 2456 wmic.exe Token: SeCreatePagefilePrivilege 2456 wmic.exe Token: SeBackupPrivilege 2456 wmic.exe Token: SeRestorePrivilege 2456 wmic.exe Token: SeShutdownPrivilege 2456 wmic.exe Token: SeDebugPrivilege 2456 wmic.exe Token: SeSystemEnvironmentPrivilege 2456 wmic.exe Token: SeRemoteShutdownPrivilege 2456 wmic.exe Token: SeUndockPrivilege 2456 wmic.exe Token: SeManageVolumePrivilege 2456 wmic.exe Token: 33 2456 wmic.exe Token: 34 2456 wmic.exe Token: 35 2456 wmic.exe Token: SeIncreaseQuotaPrivilege 2456 wmic.exe Token: SeSecurityPrivilege 2456 wmic.exe Token: SeTakeOwnershipPrivilege 2456 wmic.exe Token: SeLoadDriverPrivilege 2456 wmic.exe Token: SeSystemProfilePrivilege 2456 wmic.exe Token: SeSystemtimePrivilege 2456 wmic.exe Token: SeProfSingleProcessPrivilege 2456 wmic.exe Token: SeIncBasePriorityPrivilege 2456 wmic.exe Token: SeCreatePagefilePrivilege 2456 wmic.exe Token: SeBackupPrivilege 2456 wmic.exe Token: SeRestorePrivilege 2456 wmic.exe Token: SeShutdownPrivilege 2456 wmic.exe Token: SeDebugPrivilege 2456 wmic.exe Token: SeSystemEnvironmentPrivilege 2456 wmic.exe Token: SeRemoteShutdownPrivilege 2456 wmic.exe Token: SeUndockPrivilege 2456 wmic.exe Token: SeManageVolumePrivilege 2456 wmic.exe Token: 33 2456 wmic.exe Token: 34 2456 wmic.exe Token: 35 2456 wmic.exe Token: SeBackupPrivilege 2856 vssvc.exe Token: SeRestorePrivilege 2856 vssvc.exe Token: SeAuditPrivilege 2856 vssvc.exe Token: SeIncreaseQuotaPrivilege 2516 wmic.exe Token: SeSecurityPrivilege 2516 wmic.exe Token: SeTakeOwnershipPrivilege 2516 wmic.exe Token: SeLoadDriverPrivilege 2516 wmic.exe Token: SeSystemProfilePrivilege 2516 wmic.exe Token: SeSystemtimePrivilege 2516 wmic.exe Token: SeProfSingleProcessPrivilege 2516 wmic.exe Token: SeIncBasePriorityPrivilege 2516 wmic.exe Token: SeCreatePagefilePrivilege 2516 wmic.exe Token: SeBackupPrivilege 2516 wmic.exe Token: SeRestorePrivilege 2516 wmic.exe Token: SeShutdownPrivilege 2516 wmic.exe Token: SeDebugPrivilege 2516 wmic.exe Token: SeSystemEnvironmentPrivilege 2516 wmic.exe Token: SeRemoteShutdownPrivilege 2516 wmic.exe Token: SeUndockPrivilege 2516 wmic.exe Token: SeManageVolumePrivilege 2516 wmic.exe Token: 33 2516 wmic.exe Token: 34 2516 wmic.exe Token: 35 2516 wmic.exe Token: SeIncreaseQuotaPrivilege 2516 wmic.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2504 wrote to memory of 2456 2504 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 30 PID 2504 wrote to memory of 2456 2504 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 30 PID 2504 wrote to memory of 2456 2504 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 30 PID 2504 wrote to memory of 2456 2504 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 30 PID 2504 wrote to memory of 2516 2504 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 36 PID 2504 wrote to memory of 2516 2504 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 36 PID 2504 wrote to memory of 2516 2504 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 36 PID 2504 wrote to memory of 2516 2504 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 36 -
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:2504 -
C:\Windows\system32\wbem\wmic.exe"C:\vadd\kocnl\imm\..\..\..\Windows\ib\oic\m\..\..\..\system32\ib\x\nte\..\..\..\wbem\uuhsm\ecll\cbvqn\..\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2456
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C:\Windows\system32\wbem\wmic.exe"C:\a\ckvnn\..\..\Windows\sy\..\system32\by\ro\unk\..\..\..\wbem\sv\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2516
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2856
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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:2832
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
MD5a919cdd327db9d2159062e4e0c34e2a3
SHA11d1167d287f06e0af431ff5b2ed8a1427be12e6e
SHA2562fa956a8ca52defbee38d2c08bb43562f62738bef6cb901515d937d9c4fd0c9c
SHA512578c2553bf426ca2f7a6286460d5ef89536e655acc4fda140c63280639b8a1618bffff1cd20f08d5a4129fef2e8c80ed48f07e65cdabbac145fa101a5d02008c
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C:\Users\Admin\AppData\Roaming\Microsoft\Speech\Files\UserLexicons\SP_D295DC17A24046AA88B505BE686EA18A.dat
Filesize940B
MD56c38ebbb81b2ab8aec2ddfce27da8cb1
SHA1447d605289b4afd7ec886d18996646bda9895f9d
SHA256ef2b4c1c31ecf92dfa4b7956d1300a164922afd76287b931e87e3cf9de4543d2
SHA512ae035f71500783d489473aeff0f424588a568ba6571a43c56609d49022ec03c691985a190bef2a226b88a42f4beacd9505fb42ecbef76de6f2007aeb3d05edee