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Analysis
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max time kernel
150s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
04/03/2024, 14:14
Static task
static1
Behavioral task
behavioral1
Sample
b25591ab4e20edd1bd7215763ef6afc0.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b25591ab4e20edd1bd7215763ef6afc0.exe
Resource
win10v2004-20240226-en
General
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Target
b25591ab4e20edd1bd7215763ef6afc0.exe
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Size
228KB
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MD5
b25591ab4e20edd1bd7215763ef6afc0
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SHA1
600b80c9d1b713f3ac60013630949023fa78e7fd
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SHA256
3202e7b3359e2973bbf80beda010304548b275c790afc7d9c7d7211b28e8c2ee
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SHA512
4cd8dceb64515f6c26f74e29b6acc98e41051e16e1598a76d5ce3e170327917843f6f7a4da820bda7738ef614c057850780667a68546db66c389d7e986079cf6
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SSDEEP
6144:wvkoPrMoZFOJaa82i2QIJ/UXEsH+3A06swOJRnCm5UjSQB:wvkoPYo2gabhQoUX/e3EsPJRgjd
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" kueyao.exe -
Executes dropped EXE 1 IoCs
pid Process 2688 kueyao.exe -
Loads dropped DLL 2 IoCs
pid Process 2956 b25591ab4e20edd1bd7215763ef6afc0.exe 2956 b25591ab4e20edd1bd7215763ef6afc0.exe -
Adds Run key to start application 2 TTPs 50 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /e" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /O" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /I" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /r" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /k" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /J" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /D" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /G" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /Q" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /d" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /v" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /P" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /Y" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /f" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /E" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /N" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /c" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /V" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /t" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /C" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /h" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /i" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /m" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /n" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /W" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /S" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /o" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /Z" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /l" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /X" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /p" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /a" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /H" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /M" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /K" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /j" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /g" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /x" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /B" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /w" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /F" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /L" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /q" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /u" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /y" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /z" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /U" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /T" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /s" kueyao.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kueyao = "C:\\Users\\Admin\\kueyao.exe /R" kueyao.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 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe 2688 kueyao.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2956 b25591ab4e20edd1bd7215763ef6afc0.exe 2688 kueyao.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2956 wrote to memory of 2688 2956 b25591ab4e20edd1bd7215763ef6afc0.exe 28 PID 2956 wrote to memory of 2688 2956 b25591ab4e20edd1bd7215763ef6afc0.exe 28 PID 2956 wrote to memory of 2688 2956 b25591ab4e20edd1bd7215763ef6afc0.exe 28 PID 2956 wrote to memory of 2688 2956 b25591ab4e20edd1bd7215763ef6afc0.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\b25591ab4e20edd1bd7215763ef6afc0.exe"C:\Users\Admin\AppData\Local\Temp\b25591ab4e20edd1bd7215763ef6afc0.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2956 -
C:\Users\Admin\kueyao.exe"C:\Users\Admin\kueyao.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:2688
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
228KB
MD5cb7a6584162fa2671378109e9b8fd584
SHA188762764b188536450d14777e23f8868a7363cd1
SHA2564cabbdd4f2ebf2f620ea06b2d6e1643e709654a860f42b4e40eba9d2e0721765
SHA5128892bde99d0733a1e80c74fcaa16180ebe6eb6ae77f4dca0752ffbd6189c7967d1aba7cba5621ebe912c533c35756bf7b22658a2a61e6ca7f36aad69e2cd2127