Analysis
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max time kernel
150s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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 behavioral1/memory/2388-0-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral1/memory/2952-6-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral1/memory/2952-9-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral1/memory/2388-8-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral1/memory/2952-10-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral1/memory/2952-12-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral1/memory/2952-13-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral1/memory/2952-14-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral1/memory/2952-15-0x0000000013140000-0x000000001322D000-memory.dmp upx behavioral1/memory/2952-16-0x0000000013140000-0x000000001322D000-memory.dmp upx -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2388 set thread context of 2952 2388 a199b91a683f76db97d4a46dc1d1a720.exe 28 -
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 2952 explorer.exe -
Suspicious use of AdjustPrivilegeToken 46 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeSecurityPrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeTakeOwnershipPrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeLoadDriverPrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeSystemProfilePrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeSystemtimePrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeProfSingleProcessPrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeIncBasePriorityPrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeCreatePagefilePrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeBackupPrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeRestorePrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeShutdownPrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeDebugPrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeSystemEnvironmentPrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeChangeNotifyPrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeRemoteShutdownPrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeUndockPrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeManageVolumePrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeImpersonatePrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeCreateGlobalPrivilege 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: 33 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: 34 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: 35 2388 a199b91a683f76db97d4a46dc1d1a720.exe Token: SeIncreaseQuotaPrivilege 2952 explorer.exe Token: SeSecurityPrivilege 2952 explorer.exe Token: SeTakeOwnershipPrivilege 2952 explorer.exe Token: SeLoadDriverPrivilege 2952 explorer.exe Token: SeSystemProfilePrivilege 2952 explorer.exe Token: SeSystemtimePrivilege 2952 explorer.exe Token: SeProfSingleProcessPrivilege 2952 explorer.exe Token: SeIncBasePriorityPrivilege 2952 explorer.exe Token: SeCreatePagefilePrivilege 2952 explorer.exe Token: SeBackupPrivilege 2952 explorer.exe Token: SeRestorePrivilege 2952 explorer.exe Token: SeShutdownPrivilege 2952 explorer.exe Token: SeDebugPrivilege 2952 explorer.exe Token: SeSystemEnvironmentPrivilege 2952 explorer.exe Token: SeChangeNotifyPrivilege 2952 explorer.exe Token: SeRemoteShutdownPrivilege 2952 explorer.exe Token: SeUndockPrivilege 2952 explorer.exe Token: SeManageVolumePrivilege 2952 explorer.exe Token: SeImpersonatePrivilege 2952 explorer.exe Token: SeCreateGlobalPrivilege 2952 explorer.exe Token: 33 2952 explorer.exe Token: 34 2952 explorer.exe Token: 35 2952 explorer.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2952 explorer.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2388 wrote to memory of 2952 2388 a199b91a683f76db97d4a46dc1d1a720.exe 28 PID 2388 wrote to memory of 2952 2388 a199b91a683f76db97d4a46dc1d1a720.exe 28 PID 2388 wrote to memory of 2952 2388 a199b91a683f76db97d4a46dc1d1a720.exe 28 PID 2388 wrote to memory of 2952 2388 a199b91a683f76db97d4a46dc1d1a720.exe 28 PID 2388 wrote to memory of 2952 2388 a199b91a683f76db97d4a46dc1d1a720.exe 28 PID 2388 wrote to memory of 2952 2388 a199b91a683f76db97d4a46dc1d1a720.exe 28
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:2388 -
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:2952
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