Analysis
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max time kernel
146s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
03-01-2023 05:42
Static task
static1
Behavioral task
behavioral1
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe
Resource
win10v2004-20221111-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:\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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Modifies extensions of user files 10 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\ConnectRename.crw => C:\Users\Admin\Pictures\ConnectRename.crw.7LEXEA e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\EnableSelect.raw => C:\Users\Admin\Pictures\EnableSelect.raw.9wh3kjR e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\InvokeSplit.png => C:\Users\Admin\Pictures\InvokeSplit.png.sqEiA8y e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\JoinStep.png => C:\Users\Admin\Pictures\JoinStep.png.sqEiA8y e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\SendResize.tif => C:\Users\Admin\Pictures\SendResize.tif.Lzgh e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\UnregisterEnable.png => C:\Users\Admin\Pictures\UnregisterEnable.png.XFwvsz e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\MoveUnblock.crw => C:\Users\Admin\Pictures\MoveUnblock.crw.wxI0 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\SetTest.raw => C:\Users\Admin\Pictures\SetTest.raw.taxi3 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File opened for modification C:\Users\Admin\Pictures\UseDebug.tiff e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe File renamed C:\Users\Admin\Pictures\UseDebug.tiff => C:\Users\Admin\Pictures\UseDebug.tiff.XFwvsz e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Drops startup file 4 IoCs
description ioc Process 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\u7pw7.dat e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 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\u7pw7.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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\123456789.bmp" e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3440 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 3440 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4772 wmic.exe Token: SeSecurityPrivilege 4772 wmic.exe Token: SeTakeOwnershipPrivilege 4772 wmic.exe Token: SeLoadDriverPrivilege 4772 wmic.exe Token: SeSystemProfilePrivilege 4772 wmic.exe Token: SeSystemtimePrivilege 4772 wmic.exe Token: SeProfSingleProcessPrivilege 4772 wmic.exe Token: SeIncBasePriorityPrivilege 4772 wmic.exe Token: SeCreatePagefilePrivilege 4772 wmic.exe Token: SeBackupPrivilege 4772 wmic.exe Token: SeRestorePrivilege 4772 wmic.exe Token: SeShutdownPrivilege 4772 wmic.exe Token: SeDebugPrivilege 4772 wmic.exe Token: SeSystemEnvironmentPrivilege 4772 wmic.exe Token: SeRemoteShutdownPrivilege 4772 wmic.exe Token: SeUndockPrivilege 4772 wmic.exe Token: SeManageVolumePrivilege 4772 wmic.exe Token: 33 4772 wmic.exe Token: 34 4772 wmic.exe Token: 35 4772 wmic.exe Token: 36 4772 wmic.exe Token: SeIncreaseQuotaPrivilege 4772 wmic.exe Token: SeSecurityPrivilege 4772 wmic.exe Token: SeTakeOwnershipPrivilege 4772 wmic.exe Token: SeLoadDriverPrivilege 4772 wmic.exe Token: SeSystemProfilePrivilege 4772 wmic.exe Token: SeSystemtimePrivilege 4772 wmic.exe Token: SeProfSingleProcessPrivilege 4772 wmic.exe Token: SeIncBasePriorityPrivilege 4772 wmic.exe Token: SeCreatePagefilePrivilege 4772 wmic.exe Token: SeBackupPrivilege 4772 wmic.exe Token: SeRestorePrivilege 4772 wmic.exe Token: SeShutdownPrivilege 4772 wmic.exe Token: SeDebugPrivilege 4772 wmic.exe Token: SeSystemEnvironmentPrivilege 4772 wmic.exe Token: SeRemoteShutdownPrivilege 4772 wmic.exe Token: SeUndockPrivilege 4772 wmic.exe Token: SeManageVolumePrivilege 4772 wmic.exe Token: 33 4772 wmic.exe Token: 34 4772 wmic.exe Token: 35 4772 wmic.exe Token: 36 4772 wmic.exe Token: SeBackupPrivilege 3120 vssvc.exe Token: SeRestorePrivilege 3120 vssvc.exe Token: SeAuditPrivilege 3120 vssvc.exe Token: SeIncreaseQuotaPrivilege 3940 wmic.exe Token: SeSecurityPrivilege 3940 wmic.exe Token: SeTakeOwnershipPrivilege 3940 wmic.exe Token: SeLoadDriverPrivilege 3940 wmic.exe Token: SeSystemProfilePrivilege 3940 wmic.exe Token: SeSystemtimePrivilege 3940 wmic.exe Token: SeProfSingleProcessPrivilege 3940 wmic.exe Token: SeIncBasePriorityPrivilege 3940 wmic.exe Token: SeCreatePagefilePrivilege 3940 wmic.exe Token: SeBackupPrivilege 3940 wmic.exe Token: SeRestorePrivilege 3940 wmic.exe Token: SeShutdownPrivilege 3940 wmic.exe Token: SeDebugPrivilege 3940 wmic.exe Token: SeSystemEnvironmentPrivilege 3940 wmic.exe Token: SeRemoteShutdownPrivilege 3940 wmic.exe Token: SeUndockPrivilege 3940 wmic.exe Token: SeManageVolumePrivilege 3940 wmic.exe Token: 33 3940 wmic.exe Token: 34 3940 wmic.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3440 wrote to memory of 4772 3440 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 82 PID 3440 wrote to memory of 4772 3440 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 82 PID 3440 wrote to memory of 3940 3440 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 87 PID 3440 wrote to memory of 3940 3440 e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe"C:\Users\Admin\AppData\Local\Temp\e8a091a84dd2ea7ee429135ff48e9f48f7787637ccb79f6c3eb42f34588bc684.exe"1⤵
- Modifies extensions of user files
- Drops startup file
- Sets desktop wallpaper using registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3440 -
C:\Windows\system32\wbem\wmic.exe"C:\os\tgmvm\..\..\Windows\uaxaa\yxjmi\tockf\..\..\..\system32\mlqol\uhvqv\..\..\wbem\awmm\mrw\jqb\..\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4772
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C:\Windows\system32\wbem\wmic.exe"C:\rmg\..\Windows\nh\..\system32\botk\hiht\..\..\wbem\ea\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3940
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3120
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x244 0x3fc1⤵PID:4420