Analysis
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max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240221-en -
resource tags
arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system -
submitted
24/02/2024, 10:06
Behavioral task
behavioral1
Sample
a199b91a683f76db97d4a46dc1d1a720.exe
Resource
win7-20240221-en
11 signatures
150 seconds
General
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Target
a199b91a683f76db97d4a46dc1d1a720.exe
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Size
339KB
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MD5
a199b91a683f76db97d4a46dc1d1a720
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SHA1
120932fd127e095e26a28efb0bc07bf5093d54f8
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SHA256
f4a4defac40c38c8bd27a3b26160edd1a51f33bb71fd8696a314abb00c4fd007
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SHA512
e80f1f9b6982dac13b699e35999751ab8669de6eef57fc2e2f01e18e10af5f44f335b14e63102db83faa40541e2ae09773f3bcaacc564fe7c9164d34b8b247d8
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SSDEEP
6144:s1iJcYtR1HsvpSHY7KoSrfTNBuzZZcA1wnOLrMM4eXd/Q:skHcpSHY7VSrfT2/czO3HrtY
Malware Config
Signatures
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Modifies security service 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" a199b91a683f76db97d4a46dc1d1a720.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" explorer.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 a199b91a683f76db97d4a46dc1d1a720.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate explorer.exe -
resource yara_rule behavioral2/memory/4568-0-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral2/memory/1184-2-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral2/memory/1184-4-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral2/memory/4568-5-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral2/memory/1184-7-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral2/memory/1184-9-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral2/memory/1184-10-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral2/memory/1184-11-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral2/memory/1184-12-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral2/memory/1184-13-0x0000000013140000-0x000000001322D000-memory.dmp upx -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4568 set thread context of 1184 4568 a199b91a683f76db97d4a46dc1d1a720.exe 92 -
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 a199b91a683f76db97d4a46dc1d1a720.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString a199b91a683f76db97d4a46dc1d1a720.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier a199b91a683f76db97d4a46dc1d1a720.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier a199b91a683f76db97d4a46dc1d1a720.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 a199b91a683f76db97d4a46dc1d1a720.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier explorer.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1184 explorer.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeSecurityPrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeTakeOwnershipPrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeLoadDriverPrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeSystemProfilePrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeSystemtimePrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeProfSingleProcessPrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeIncBasePriorityPrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeCreatePagefilePrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeBackupPrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeRestorePrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeShutdownPrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeDebugPrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeSystemEnvironmentPrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeChangeNotifyPrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeRemoteShutdownPrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeUndockPrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeManageVolumePrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeImpersonatePrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeCreateGlobalPrivilege 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: 33 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: 34 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: 35 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: 36 4568 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeIncreaseQuotaPrivilege 1184 explorer.exe Token: SeSecurityPrivilege 1184 explorer.exe Token: SeTakeOwnershipPrivilege 1184 explorer.exe Token: SeLoadDriverPrivilege 1184 explorer.exe Token: SeSystemProfilePrivilege 1184 explorer.exe Token: SeSystemtimePrivilege 1184 explorer.exe Token: SeProfSingleProcessPrivilege 1184 explorer.exe Token: SeIncBasePriorityPrivilege 1184 explorer.exe Token: SeCreatePagefilePrivilege 1184 explorer.exe Token: SeBackupPrivilege 1184 explorer.exe Token: SeRestorePrivilege 1184 explorer.exe Token: SeShutdownPrivilege 1184 explorer.exe Token: SeDebugPrivilege 1184 explorer.exe Token: SeSystemEnvironmentPrivilege 1184 explorer.exe Token: SeChangeNotifyPrivilege 1184 explorer.exe Token: SeRemoteShutdownPrivilege 1184 explorer.exe Token: SeUndockPrivilege 1184 explorer.exe Token: SeManageVolumePrivilege 1184 explorer.exe Token: SeImpersonatePrivilege 1184 explorer.exe Token: SeCreateGlobalPrivilege 1184 explorer.exe Token: 33 1184 explorer.exe Token: 34 1184 explorer.exe Token: 35 1184 explorer.exe Token: 36 1184 explorer.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1184 explorer.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 4568 wrote to memory of 1184 4568 a199b91a683f76db97d4a46dc1d1a720.exe 92 PID 4568 wrote to memory of 1184 4568 a199b91a683f76db97d4a46dc1d1a720.exe 92 PID 4568 wrote to memory of 1184 4568 a199b91a683f76db97d4a46dc1d1a720.exe 92 PID 4568 wrote to memory of 1184 4568 a199b91a683f76db97d4a46dc1d1a720.exe 92 PID 4568 wrote to memory of 1184 4568 a199b91a683f76db97d4a46dc1d1a720.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\a199b91a683f76db97d4a46dc1d1a720.exe"C:\Users\Admin\AppData\Local\Temp\a199b91a683f76db97d4a46dc1d1a720.exe"1⤵
- Modifies security service
- Checks BIOS information in registry
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4568 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.exe"2⤵
- Modifies security service
- Checks BIOS information in registry
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1184
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