Analysis
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max time kernel
197s -
max time network
207s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
05-12-2022 21:06
Behavioral task
behavioral1
Sample
a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe
Resource
win7-20221111-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe
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Size
635KB
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MD5
d399b7212c9db5e043140682be4f6f4b
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SHA1
a800e83a7c4e4521d09a942d671dc265e91226a7
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SHA256
a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2
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SHA512
3483f9b198b3e2207e98d34aad4431892d687aa153ae69860ff480f08fd7c393e85ad52a31c284262a853343aa0605fa1d317290f331d4ef21675a9c6430ac1d
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SSDEEP
12288:npwABK90BOe/x9lPAYvxPQVjdsAY2XjWlnlpTMMXG91uhKIXn/Z:pwAcu99lPzvxP+Bsz2XjWTRMQckkIXnx
Score
10/10
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe" a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate explorer.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3360 set thread context of 3136 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe 84 -
Checks processor information in registry 2 TTPs 8 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier explorer.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString explorer.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier explorer.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeSecurityPrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeTakeOwnershipPrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeLoadDriverPrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeSystemProfilePrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeSystemtimePrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeProfSingleProcessPrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeIncBasePriorityPrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeCreatePagefilePrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeBackupPrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeRestorePrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeShutdownPrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeDebugPrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeSystemEnvironmentPrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeChangeNotifyPrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeRemoteShutdownPrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeUndockPrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeManageVolumePrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeImpersonatePrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeCreateGlobalPrivilege 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: 33 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: 34 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: 35 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: 36 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe Token: SeIncreaseQuotaPrivilege 3136 explorer.exe Token: SeSecurityPrivilege 3136 explorer.exe Token: SeTakeOwnershipPrivilege 3136 explorer.exe Token: SeLoadDriverPrivilege 3136 explorer.exe Token: SeSystemProfilePrivilege 3136 explorer.exe Token: SeSystemtimePrivilege 3136 explorer.exe Token: SeProfSingleProcessPrivilege 3136 explorer.exe Token: SeIncBasePriorityPrivilege 3136 explorer.exe Token: SeCreatePagefilePrivilege 3136 explorer.exe Token: SeBackupPrivilege 3136 explorer.exe Token: SeRestorePrivilege 3136 explorer.exe Token: SeShutdownPrivilege 3136 explorer.exe Token: SeDebugPrivilege 3136 explorer.exe Token: SeSystemEnvironmentPrivilege 3136 explorer.exe Token: SeChangeNotifyPrivilege 3136 explorer.exe Token: SeRemoteShutdownPrivilege 3136 explorer.exe Token: SeUndockPrivilege 3136 explorer.exe Token: SeManageVolumePrivilege 3136 explorer.exe Token: SeImpersonatePrivilege 3136 explorer.exe Token: SeCreateGlobalPrivilege 3136 explorer.exe Token: 33 3136 explorer.exe Token: 34 3136 explorer.exe Token: 35 3136 explorer.exe Token: 36 3136 explorer.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 3360 wrote to memory of 3136 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe 84 PID 3360 wrote to memory of 3136 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe 84 PID 3360 wrote to memory of 3136 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe 84 PID 3360 wrote to memory of 3136 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe 84 PID 3360 wrote to memory of 3136 3360 a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe"C:\Users\Admin\AppData\Local\Temp\a29f78f397bcc25d69b459eac6afc93cbc61429a5a33ad07f12e3081f45e4ec2.exe"1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3360 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.exe"2⤵
- Checks BIOS information in registry
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:3136
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