Analysis
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max time kernel
151s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
07/12/2022, 02:38
Static task
static1
Behavioral task
behavioral1
Sample
9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe
Resource
win7-20220901-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
10 signatures
150 seconds
General
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Target
9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe
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Size
254KB
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MD5
a9ebc731bee1004144c27dc22433017a
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SHA1
38f97a3ec51fe4dcd5a5f74a5fe567cd638f8d80
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SHA256
9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37
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SHA512
07cabfa0a152cffeb8da9b0ed8913d96d65925c6d6902020b57234795bc477ef96fcab4eaf0ff6f72d9d4061ae705ece1cd5a023bcd1fcb2d042c2ebc1bdd92e
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SSDEEP
3072:YbPoH5iWLZz6djpw06Ir3wSCslvaQGAM3CwcfiY/4x48m+CGBazfMdhStIgbKd9a:YbELZgX8Re5Iged9
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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" cuuezu.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe -
Executes dropped EXE 1 IoCs
pid Process 3192 cuuezu.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe -
Adds Run key to start application 2 TTPs 28 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /h" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /r" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /a" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /b" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /u" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /w" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /m" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /q" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /v" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /j" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /i" cuuezu.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /c" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /x" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /s" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /n" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /o" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /g" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /z" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /d" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /y" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /t" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /u" 9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /e" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /k" cuuezu.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /p" cuuezu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuuezu = "C:\\Users\\Admin\\cuuezu.exe /f" cuuezu.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum cuuezu.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 cuuezu.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings 9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1232 9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe 1232 9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe 3192 cuuezu.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1232 9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe 3192 cuuezu.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1232 wrote to memory of 3192 1232 9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe 85 PID 1232 wrote to memory of 3192 1232 9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe 85 PID 1232 wrote to memory of 3192 1232 9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe"C:\Users\Admin\AppData\Local\Temp\9e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1232 -
C:\Users\Admin\cuuezu.exe"C:\Users\Admin\cuuezu.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3192
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:4080
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
254KB
MD5a9ebc731bee1004144c27dc22433017a
SHA138f97a3ec51fe4dcd5a5f74a5fe567cd638f8d80
SHA2569e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37
SHA51207cabfa0a152cffeb8da9b0ed8913d96d65925c6d6902020b57234795bc477ef96fcab4eaf0ff6f72d9d4061ae705ece1cd5a023bcd1fcb2d042c2ebc1bdd92e
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Filesize
254KB
MD5a9ebc731bee1004144c27dc22433017a
SHA138f97a3ec51fe4dcd5a5f74a5fe567cd638f8d80
SHA2569e37e0a9fc15a899a348f81873b3c0e6e01feaf06e7e53ecc2db9ab4e4b24d37
SHA51207cabfa0a152cffeb8da9b0ed8913d96d65925c6d6902020b57234795bc477ef96fcab4eaf0ff6f72d9d4061ae705ece1cd5a023bcd1fcb2d042c2ebc1bdd92e