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Analysis
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max time kernel
150s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
27/01/2024, 03:08
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
791f0783cb80857750f0b4517bea28e5.exe
Resource
win7-20231215-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
791f0783cb80857750f0b4517bea28e5.exe
Resource
win10v2004-20231215-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
791f0783cb80857750f0b4517bea28e5.exe
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Size
264KB
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MD5
791f0783cb80857750f0b4517bea28e5
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SHA1
ea1dd76fc739408f5217508f7d33fc7eb8f44471
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SHA256
93a5d02ccd5a56c9d55ce74789b0e8164966386fa52ec6db261525e190bfeb92
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SHA512
ba97e100d3f403b352bd3af0f581a29a69bf799441723c679da58ff069628e2c66abad5c009c13c31e12bb06774e05258449efe2ebe3f567c1f42e25a6be3453
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SSDEEP
6144:qvXipyq9Ant8ppCZre+1HUNxFmIkIftoZqn/fIM27pHL7ejeT4EKdiK:qvXipyHt8pp4rL105P/27pHPeqe
Score
10/10
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-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yuzay.exe -
Executes dropped EXE 1 IoCs
pid Process 1680 yuzay.exe -
Loads dropped DLL 2 IoCs
pid Process 2268 791f0783cb80857750f0b4517bea28e5.exe 2268 791f0783cb80857750f0b4517bea28e5.exe -
Adds Run key to start application 2 TTPs 51 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /O" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /D" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /Z" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /H" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /T" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /R" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /N" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /Q" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /m" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /f" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /U" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /k" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /t" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /V" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /a" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /d" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /F" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /M" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /l" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /s" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /z" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /S" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /G" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /g" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /o" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /r" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /h" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /i" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /J" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /y" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /v" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /C" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /p" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /b" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /e" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /w" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /q" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /Y" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /A" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /P" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /u" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /W" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /c" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /I" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /x" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /X" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /K" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /B" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /E" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /L" yuzay.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuzay = "C:\\Users\\Admin\\yuzay.exe /n" yuzay.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 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe 1680 yuzay.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2268 791f0783cb80857750f0b4517bea28e5.exe 1680 yuzay.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2268 wrote to memory of 1680 2268 791f0783cb80857750f0b4517bea28e5.exe 28 PID 2268 wrote to memory of 1680 2268 791f0783cb80857750f0b4517bea28e5.exe 28 PID 2268 wrote to memory of 1680 2268 791f0783cb80857750f0b4517bea28e5.exe 28 PID 2268 wrote to memory of 1680 2268 791f0783cb80857750f0b4517bea28e5.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\791f0783cb80857750f0b4517bea28e5.exe"C:\Users\Admin\AppData\Local\Temp\791f0783cb80857750f0b4517bea28e5.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2268 -
C:\Users\Admin\yuzay.exe"C:\Users\Admin\yuzay.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:1680
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
264KB
MD5e668bbc3f35092c686df465fee545677
SHA1da4e24a627f1a57dbb5379fd10c194717f8d0a0a
SHA2563c9f5afe53db2ccb60879cd8f948e5901d61e976a7905058c7398e095432aaf6
SHA512fb2a528fbee777e88114331e8fbc52cc0d88f66c20f537af5bff7ae6226b26dab76ec17f6559ecfa0c21b37483ea197e2a407b24f81ff6f8a0b52c2b6273ab55