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Analysis
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max time kernel
150s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
10/03/2024, 16:10
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
bf0802431d3d28be3ef7c0633b074f4f.exe
Resource
win7-20240220-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
bf0802431d3d28be3ef7c0633b074f4f.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
bf0802431d3d28be3ef7c0633b074f4f.exe
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Size
200KB
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MD5
bf0802431d3d28be3ef7c0633b074f4f
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SHA1
c8797d252e7ba8708f81b72e6c88004500ee2e14
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SHA256
08f0da563297fc2c0c9224060ec5a3003bb36dd8ab0a69570a2cf7ea06765715
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SHA512
21383b06b360183b03fdaff8a77648ec1aa6e6627bd8de608c9916119ffa6e37ddde77fcc02069d120e5e3b51bf7a5610c7e10d75a2cbd2106eda16c58e27f8e
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SSDEEP
3072:jCbTo/0Yx0L0tQ9nLHbB9WPliBs2HWWEakGJm9LB:jCCq4QxL7B9WPli+yWWEazU
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" bf0802431d3d28be3ef7c0633b074f4f.exe Set value (int) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" tainui.exe -
Executes dropped EXE 1 IoCs
pid Process 2904 tainui.exe -
Loads dropped DLL 2 IoCs
pid Process 2872 bf0802431d3d28be3ef7c0633b074f4f.exe 2872 bf0802431d3d28be3ef7c0633b074f4f.exe -
Adds Run key to start application 2 TTPs 27 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /l" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /d" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /i" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /m" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /r" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /s" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /u" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /c" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /x" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /b" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /z" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /f" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /g" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /p" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /j" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /k" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /e" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /a" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /o" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /y" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /h" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /t" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /q" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /w" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /c" bf0802431d3d28be3ef7c0633b074f4f.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /n" tainui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\tainui = "C:\\Users\\Admin\\tainui.exe /v" tainui.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2872 bf0802431d3d28be3ef7c0633b074f4f.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe 2904 tainui.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2872 bf0802431d3d28be3ef7c0633b074f4f.exe 2904 tainui.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2872 wrote to memory of 2904 2872 bf0802431d3d28be3ef7c0633b074f4f.exe 28 PID 2872 wrote to memory of 2904 2872 bf0802431d3d28be3ef7c0633b074f4f.exe 28 PID 2872 wrote to memory of 2904 2872 bf0802431d3d28be3ef7c0633b074f4f.exe 28 PID 2872 wrote to memory of 2904 2872 bf0802431d3d28be3ef7c0633b074f4f.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\bf0802431d3d28be3ef7c0633b074f4f.exe"C:\Users\Admin\AppData\Local\Temp\bf0802431d3d28be3ef7c0633b074f4f.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2872 -
C:\Users\Admin\tainui.exe"C:\Users\Admin\tainui.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2904
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
200KB
MD55e2d819d9e2127c50115c140e6fd78cc
SHA1951cfa22350661cdd0e1ed444ac8006d8a1e1880
SHA256ea51c284ce07953a76a9482e5cf5d9d3328b1b638a3ca62558a3645cfdd4b041
SHA51215185ce31f078885c79dac706c659e885dd8f4c0a8acc29d67ce39d582088ce0fd7e2b4cd91f73ad61efc17f0ebd2c99fce00c1e23ed27a18323531fd535d2ef