Analysis
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max time kernel
220s -
max time network
287s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
28/11/2022, 04:43
Static task
static1
Behavioral task
behavioral1
Sample
bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe
Resource
win7-20221111-en
windows7-x64
16 signatures
150 seconds
Behavioral task
behavioral2
Sample
bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe
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Size
1.1MB
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MD5
c3e725e101429c8f5fa63ebff8a0aa5d
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SHA1
4bdc369996484bd52519c00f48d320ba127ec627
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SHA256
bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a
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SHA512
8677dab9c79d4f333bd5a953d532bd4405dfd14b14ae93bae74dad769e5cf6a599f4abf2da94ea7a75843800bf747bb82a8972d4ff8260bfa60efb63a06a23f4
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SSDEEP
24576:Fw1+mpzx/blZuPqIWt6OiiUfUqO/aQXfiqgzHfbUsq4qSRZ6A:Fw1Dp1/blZuq56aUfUqOjfP8Lq4qm
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:\\Windows\\system32\\Windupdt\\winupdate.exe" bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windows\\system32\\Windupdt\\winupdate.exe" bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\Windupdt\winupdate.exe bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe File opened for modification C:\Windows\SysWOW64\Windupdt\winupdate.exe bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe File opened for modification C:\Windows\SysWOW64\Windupdt\ bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1952 set thread context of 5016 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe 80 -
Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe -
Enumerates system info in registry 2 TTPs 1 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe -
Suspicious use of AdjustPrivilegeToken 24 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeSecurityPrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeTakeOwnershipPrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeLoadDriverPrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeSystemProfilePrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeSystemtimePrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeProfSingleProcessPrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeIncBasePriorityPrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeCreatePagefilePrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeBackupPrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeRestorePrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeShutdownPrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeDebugPrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeSystemEnvironmentPrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeChangeNotifyPrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeRemoteShutdownPrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeUndockPrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeManageVolumePrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeImpersonatePrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: SeCreateGlobalPrivilege 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: 33 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: 34 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: 35 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe Token: 36 5016 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1952 wrote to memory of 5016 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe 80 PID 1952 wrote to memory of 5016 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe 80 PID 1952 wrote to memory of 5016 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe 80 PID 1952 wrote to memory of 5016 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe 80 PID 1952 wrote to memory of 5016 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe 80 PID 1952 wrote to memory of 5016 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe 80 PID 1952 wrote to memory of 5016 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe 80 PID 1952 wrote to memory of 5016 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe 80 PID 1952 wrote to memory of 5016 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe 80 PID 1952 wrote to memory of 5016 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe 80 PID 1952 wrote to memory of 5016 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe 80 PID 1952 wrote to memory of 5016 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe 80 PID 1952 wrote to memory of 5016 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe 80 PID 1952 wrote to memory of 5016 1952 bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe"C:\Users\Admin\AppData\Local\Temp\bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1952 -
C:\Users\Admin\AppData\Local\Temp\bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe"C:\Users\Admin\AppData\Local\Temp\bd73c61af867f496e494daa04b51a5c705903c167d051b9d78825f731789562a.exe"2⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Adds Run key to start application
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:5016
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