Analysis
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max time kernel
29s -
max time network
30s -
platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system -
submitted
08-12-2024 09:46
Static task
static1
Behavioral task
behavioral1
Sample
BootstrapperV1.23.exe
Resource
win11-20241007-en
General
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Target
BootstrapperV1.23.exe
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Size
800KB
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MD5
02c70d9d6696950c198db93b7f6a835e
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SHA1
30231a467a49cc37768eea0f55f4bea1cbfb48e2
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SHA256
8f2e28588f2303bd8d7a9b0c3ff6a9cb16fa93f8ddc9c5e0666a8c12d6880ee3
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SHA512
431d9b9918553bff4f4a5bc2a5e7b7015f8ad0e2d390bb4d5264d08983372424156524ef5587b24b67d1226856fc630aaca08edc8113097e0094501b4f08efeb
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SSDEEP
12288:qhd8cjaLXVh84wEFkW1mocaBj6WtiRPpptHxQ0z:2ycjar84w5W4ocaBj6y2tHDz
Malware Config
Signatures
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Unexpected DNS network traffic destination 7 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 1.0.0.1 Destination IP 1.0.0.1 Destination IP 1.0.0.1 Destination IP 1.0.0.1 Destination IP 1.0.0.1 Destination IP 1.0.0.1 Destination IP 1.0.0.1 -
Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.
pid Process 2164 ipconfig.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-556537508-2730415644-482548075-1000_Classes\Local Settings\MuiCache MiniSearchHost.exe -
Suspicious behavior: LoadsDriver 6 IoCs
pid Process 4 Process not Found 4 Process not Found 4 Process not Found 4 Process not Found 4 Process not Found 672 Process not Found -
Suspicious use of AdjustPrivilegeToken 43 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 4600 WMIC.exe Token: SeSecurityPrivilege 4600 WMIC.exe Token: SeTakeOwnershipPrivilege 4600 WMIC.exe Token: SeLoadDriverPrivilege 4600 WMIC.exe Token: SeSystemProfilePrivilege 4600 WMIC.exe Token: SeSystemtimePrivilege 4600 WMIC.exe Token: SeProfSingleProcessPrivilege 4600 WMIC.exe Token: SeIncBasePriorityPrivilege 4600 WMIC.exe Token: SeCreatePagefilePrivilege 4600 WMIC.exe Token: SeBackupPrivilege 4600 WMIC.exe Token: SeRestorePrivilege 4600 WMIC.exe Token: SeShutdownPrivilege 4600 WMIC.exe Token: SeDebugPrivilege 4600 WMIC.exe Token: SeSystemEnvironmentPrivilege 4600 WMIC.exe Token: SeRemoteShutdownPrivilege 4600 WMIC.exe Token: SeUndockPrivilege 4600 WMIC.exe Token: SeManageVolumePrivilege 4600 WMIC.exe Token: 33 4600 WMIC.exe Token: 34 4600 WMIC.exe Token: 35 4600 WMIC.exe Token: 36 4600 WMIC.exe Token: SeIncreaseQuotaPrivilege 4600 WMIC.exe Token: SeSecurityPrivilege 4600 WMIC.exe Token: SeTakeOwnershipPrivilege 4600 WMIC.exe Token: SeLoadDriverPrivilege 4600 WMIC.exe Token: SeSystemProfilePrivilege 4600 WMIC.exe Token: SeSystemtimePrivilege 4600 WMIC.exe Token: SeProfSingleProcessPrivilege 4600 WMIC.exe Token: SeIncBasePriorityPrivilege 4600 WMIC.exe Token: SeCreatePagefilePrivilege 4600 WMIC.exe Token: SeBackupPrivilege 4600 WMIC.exe Token: SeRestorePrivilege 4600 WMIC.exe Token: SeShutdownPrivilege 4600 WMIC.exe Token: SeDebugPrivilege 4600 WMIC.exe Token: SeSystemEnvironmentPrivilege 4600 WMIC.exe Token: SeRemoteShutdownPrivilege 4600 WMIC.exe Token: SeUndockPrivilege 4600 WMIC.exe Token: SeManageVolumePrivilege 4600 WMIC.exe Token: 33 4600 WMIC.exe Token: 34 4600 WMIC.exe Token: 35 4600 WMIC.exe Token: 36 4600 WMIC.exe Token: SeDebugPrivilege 2644 BootstrapperV1.23.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3552 MiniSearchHost.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2644 wrote to memory of 1096 2644 BootstrapperV1.23.exe 79 PID 2644 wrote to memory of 1096 2644 BootstrapperV1.23.exe 79 PID 1096 wrote to memory of 2164 1096 cmd.exe 81 PID 1096 wrote to memory of 2164 1096 cmd.exe 81 PID 2644 wrote to memory of 2708 2644 BootstrapperV1.23.exe 82 PID 2644 wrote to memory of 2708 2644 BootstrapperV1.23.exe 82 PID 2708 wrote to memory of 4600 2708 cmd.exe 84 PID 2708 wrote to memory of 4600 2708 cmd.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.23.exe"C:\Users\Admin\AppData\Local\Temp\BootstrapperV1.23.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2644 -
C:\Windows\SYSTEM32\cmd.exe"cmd" /c ipconfig /all2⤵
- Suspicious use of WriteProcessMemory
PID:1096 -
C:\Windows\system32\ipconfig.exeipconfig /all3⤵
- Gathers network information
PID:2164
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C:\Windows\SYSTEM32\cmd.exe"cmd" /c wmic nicconfig where (IPEnabled=TRUE) call SetDNSServerSearchOrder ("1.1.1.1", "1.0.0.1")2⤵
- Suspicious use of WriteProcessMemory
PID:2708 -
C:\Windows\System32\Wbem\WMIC.exewmic nicconfig where (IPEnabled=TRUE) call SetDNSServerSearchOrder ("1.1.1.1", "1.0.0.1")3⤵
- Suspicious use of AdjustPrivilegeToken
PID:4600
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:3552
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc1⤵PID:4552
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat
Filesize10KB
MD5ad7a569bafd3a938fe348f531b8ef332
SHA17fdd2f52d07640047bb62e0f3d3c946ddd85c227
SHA256f0e06109256d5577e9f62db2c398974c5002bd6d08892f20517760601b705309
SHA512b762bae338690082d817b3008144926498a1bd2d6d99be33e513c43515808f9a3184bd10254e5c6a1ff90a9211653f066050249030ad9fe0460ec88335b3d423