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Analysis
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max time kernel
34s -
max time network
38s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
21/04/2023, 20:42
Behavioral task
behavioral1
Sample
OInstall.exe
Resource
win7-20230220-en
windows7-x64
17 signatures
150 seconds
Behavioral task
behavioral2
Sample
OInstall.exe
Resource
win10v2004-20230220-en
windows10-2004-x64
7 signatures
150 seconds
Errors
Reason
Machine shutdown
General
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Target
OInstall.exe
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Size
11.6MB
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MD5
405c0627a9dc679297862d62c712b05a
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SHA1
66b33f9e5e9b517be3ae85d9a423129f272dc25a
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SHA256
698aeb2888d4ed207eefb231937dfe3e9bbf8ceb0db6a961fe9010a2fddb8eb9
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SHA512
bca6a39378cddd35e4ebe59c03d4ddb04826d1475d686e3e85350a18f6efc602d93548116f77e38cf3a998459d371e2241edc044836b585d87998b61c98fdf46
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SSDEEP
196608:w3mifxMAExNyGUV9KhMqzFdhA1wREOVp5LpL2OcmmQ1L/sJ7GcI37lWhbX/PE56w:w3ffyH4V9KhMqzFdhyZOVp+OKe/+GR7R
Score
7/10
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2252 files.dat -
resource yara_rule behavioral2/memory/4200-133-0x0000000000400000-0x0000000001A63000-memory.dmp upx behavioral2/memory/4200-150-0x0000000000400000-0x0000000001A63000-memory.dmp upx behavioral2/memory/4200-152-0x0000000000400000-0x0000000001A63000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies data under HKEY_USERS 15 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM LogonUI.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "15" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" LogonUI.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2356 WMIC.exe Token: SeSecurityPrivilege 2356 WMIC.exe Token: SeTakeOwnershipPrivilege 2356 WMIC.exe Token: SeLoadDriverPrivilege 2356 WMIC.exe Token: SeSystemProfilePrivilege 2356 WMIC.exe Token: SeSystemtimePrivilege 2356 WMIC.exe Token: SeProfSingleProcessPrivilege 2356 WMIC.exe Token: SeIncBasePriorityPrivilege 2356 WMIC.exe Token: SeCreatePagefilePrivilege 2356 WMIC.exe Token: SeBackupPrivilege 2356 WMIC.exe Token: SeRestorePrivilege 2356 WMIC.exe Token: SeShutdownPrivilege 2356 WMIC.exe Token: SeDebugPrivilege 2356 WMIC.exe Token: SeSystemEnvironmentPrivilege 2356 WMIC.exe Token: SeRemoteShutdownPrivilege 2356 WMIC.exe Token: SeUndockPrivilege 2356 WMIC.exe Token: SeManageVolumePrivilege 2356 WMIC.exe Token: 33 2356 WMIC.exe Token: 34 2356 WMIC.exe Token: 35 2356 WMIC.exe Token: 36 2356 WMIC.exe Token: SeIncreaseQuotaPrivilege 2356 WMIC.exe Token: SeSecurityPrivilege 2356 WMIC.exe Token: SeTakeOwnershipPrivilege 2356 WMIC.exe Token: SeLoadDriverPrivilege 2356 WMIC.exe Token: SeSystemProfilePrivilege 2356 WMIC.exe Token: SeSystemtimePrivilege 2356 WMIC.exe Token: SeProfSingleProcessPrivilege 2356 WMIC.exe Token: SeIncBasePriorityPrivilege 2356 WMIC.exe Token: SeCreatePagefilePrivilege 2356 WMIC.exe Token: SeBackupPrivilege 2356 WMIC.exe Token: SeRestorePrivilege 2356 WMIC.exe Token: SeShutdownPrivilege 2356 WMIC.exe Token: SeDebugPrivilege 2356 WMIC.exe Token: SeSystemEnvironmentPrivilege 2356 WMIC.exe Token: SeRemoteShutdownPrivilege 2356 WMIC.exe Token: SeUndockPrivilege 2356 WMIC.exe Token: SeManageVolumePrivilege 2356 WMIC.exe Token: 33 2356 WMIC.exe Token: 34 2356 WMIC.exe Token: 35 2356 WMIC.exe Token: 36 2356 WMIC.exe Token: SeIncreaseQuotaPrivilege 2244 WMIC.exe Token: SeSecurityPrivilege 2244 WMIC.exe Token: SeTakeOwnershipPrivilege 2244 WMIC.exe Token: SeLoadDriverPrivilege 2244 WMIC.exe Token: SeSystemProfilePrivilege 2244 WMIC.exe Token: SeSystemtimePrivilege 2244 WMIC.exe Token: SeProfSingleProcessPrivilege 2244 WMIC.exe Token: SeIncBasePriorityPrivilege 2244 WMIC.exe Token: SeCreatePagefilePrivilege 2244 WMIC.exe Token: SeBackupPrivilege 2244 WMIC.exe Token: SeRestorePrivilege 2244 WMIC.exe Token: SeShutdownPrivilege 2244 WMIC.exe Token: SeDebugPrivilege 2244 WMIC.exe Token: SeSystemEnvironmentPrivilege 2244 WMIC.exe Token: SeRemoteShutdownPrivilege 2244 WMIC.exe Token: SeUndockPrivilege 2244 WMIC.exe Token: SeManageVolumePrivilege 2244 WMIC.exe Token: 33 2244 WMIC.exe Token: 34 2244 WMIC.exe Token: 35 2244 WMIC.exe Token: 36 2244 WMIC.exe Token: SeIncreaseQuotaPrivilege 2244 WMIC.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4824 LogonUI.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 4200 wrote to memory of 2684 4200 OInstall.exe 84 PID 4200 wrote to memory of 2684 4200 OInstall.exe 84 PID 2684 wrote to memory of 2356 2684 cmd.exe 86 PID 2684 wrote to memory of 2356 2684 cmd.exe 86 PID 4200 wrote to memory of 1668 4200 OInstall.exe 88 PID 4200 wrote to memory of 1668 4200 OInstall.exe 88 PID 1668 wrote to memory of 2244 1668 cmd.exe 90 PID 1668 wrote to memory of 2244 1668 cmd.exe 90 PID 4200 wrote to memory of 2976 4200 OInstall.exe 91 PID 4200 wrote to memory of 2976 4200 OInstall.exe 91 PID 2976 wrote to memory of 2252 2976 cmd.exe 93 PID 2976 wrote to memory of 2252 2976 cmd.exe 93 PID 2976 wrote to memory of 2252 2976 cmd.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\OInstall.exe"C:\Users\Admin\AppData\Local\Temp\OInstall.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4200 -
C:\Windows\system32\cmd.exe"C:\Windows\Sysnative\cmd.exe" /c WMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionPath="C:\Users\Admin\AppData\Local\Temp\OInstall.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2684 -
C:\Windows\System32\Wbem\WMIC.exeWMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionPath="C:\Users\Admin\AppData\Local\Temp\OInstall.exe"3⤵
- Suspicious use of AdjustPrivilegeToken
PID:2356
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C:\Windows\system32\cmd.exe"C:\Windows\Sysnative\cmd.exe" /c WMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionPath="C:\Users\Admin\AppData\Local\Temp\files"2⤵
- Suspicious use of WriteProcessMemory
PID:1668 -
C:\Windows\System32\Wbem\WMIC.exeWMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionPath="C:\Users\Admin\AppData\Local\Temp\files"3⤵
- Suspicious use of AdjustPrivilegeToken
PID:2244
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C:\Windows\system32\cmd.exe"C:\Windows\Sysnative\cmd.exe" /D /c files.dat -y -pkmsauto2⤵
- Suspicious use of WriteProcessMemory
PID:2976 -
C:\Users\Admin\AppData\Local\Temp\files\files.datfiles.dat -y -pkmsauto3⤵
- Executes dropped EXE
PID:2252
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x4 /state0:0xa3985855 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:4824
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
707KB
MD555d21b2c272a5d6b9f54fa9ed82bf9eb
SHA132464cba823cd9b7e94e4fa1a32a8f2344b0f33b
SHA2567a1c82e264258470d14ca345ea1a9b6fc34fa19b393a92077a01be5f1ad08f47
SHA5121b68d0c61367717529be4a3aa347bb69d3e21de7a89b10e8b0aa54d40af988cc0cc8e63298ba595a93c3372aca3770ace1eee2780a59238d0948499dbb4be725
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Filesize
707KB
MD555d21b2c272a5d6b9f54fa9ed82bf9eb
SHA132464cba823cd9b7e94e4fa1a32a8f2344b0f33b
SHA2567a1c82e264258470d14ca345ea1a9b6fc34fa19b393a92077a01be5f1ad08f47
SHA5121b68d0c61367717529be4a3aa347bb69d3e21de7a89b10e8b0aa54d40af988cc0cc8e63298ba595a93c3372aca3770ace1eee2780a59238d0948499dbb4be725