Analysis
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max time kernel
150s -
max time network
140s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
24-12-2023 22:42
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
1690e8ae43d92fde121bb0b57037f0f2.exe
Resource
win7-20231215-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
1690e8ae43d92fde121bb0b57037f0f2.exe
Resource
win10v2004-20231215-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
1690e8ae43d92fde121bb0b57037f0f2.exe
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Size
92KB
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MD5
1690e8ae43d92fde121bb0b57037f0f2
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SHA1
8fa87c5a808a3db670fb844ef8e10d31986af95c
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SHA256
32ad7e4c6d45965a1d7e5fdab926437382f59ed9a2fc2cc9fc701c0718b04137
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SHA512
dfee07c0ffb23e8d6797be82c40b1452c8089db63265b3982ac0fb4334ae1337437be1836170ca266eddfbd7303fd164e001534381845a5e9c10f274c660262b
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SSDEEP
768:cdGYrZtBTSD9mx0CjIGhY4VVN2b1LllfRddcQVEWeSgPl53XXT+AeZO:cd1q9Cr0GhXKdTdTiWeDPv3XAZO
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-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 1690e8ae43d92fde121bb0b57037f0f2.exe Set value (int) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" nuexu.exe -
Executes dropped EXE 1 IoCs
pid Process 2940 nuexu.exe -
Loads dropped DLL 2 IoCs
pid Process 2132 1690e8ae43d92fde121bb0b57037f0f2.exe 2132 1690e8ae43d92fde121bb0b57037f0f2.exe -
Adds Run key to start application 2 TTPs 27 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /n" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /b" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /z" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /d" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /y" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /o" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /h" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /q" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /c" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /f" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /t" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /u" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /r" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /a" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /v" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /m" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /i" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /e" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /j" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /l" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /x" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /w" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /k" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /w" 1690e8ae43d92fde121bb0b57037f0f2.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /s" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /g" nuexu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\nuexu = "C:\\Users\\Admin\\nuexu.exe /p" nuexu.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 2132 1690e8ae43d92fde121bb0b57037f0f2.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe 2940 nuexu.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2132 1690e8ae43d92fde121bb0b57037f0f2.exe 2940 nuexu.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2132 wrote to memory of 2940 2132 1690e8ae43d92fde121bb0b57037f0f2.exe 28 PID 2132 wrote to memory of 2940 2132 1690e8ae43d92fde121bb0b57037f0f2.exe 28 PID 2132 wrote to memory of 2940 2132 1690e8ae43d92fde121bb0b57037f0f2.exe 28 PID 2132 wrote to memory of 2940 2132 1690e8ae43d92fde121bb0b57037f0f2.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\1690e8ae43d92fde121bb0b57037f0f2.exe"C:\Users\Admin\AppData\Local\Temp\1690e8ae43d92fde121bb0b57037f0f2.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:2132 -
C:\Users\Admin\nuexu.exe"C:\Users\Admin\nuexu.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:2940
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
92KB
MD5b48376029e97952c13d2f98d2e6c4aa5
SHA15e17d25dc3946884ed3f812589b5cf8158226570
SHA2566eef7848627da0fe6e20de07379375d06e4c21c51497e0838cc5fadc4fc5f2f6
SHA5124af0686a55c9b95291244282c227aa34a86070f889b923266595c91968eb57e91a7f8dda6f3fc488fcdfd7deb0d718b7ed3601b760bb68eaba511cf1025a0531