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Analysis
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max time kernel
184s -
max time network
202s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
29/11/2022, 13:32
Static task
static1
Behavioral task
behavioral1
Sample
5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe.exe
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Size
100KB
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MD5
1932b892a5400a05ea2c315e914c7061
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SHA1
b3619c52289e028c1aa0684a5be6a148ef1ebd29
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SHA256
5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe
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SHA512
30ccb3129b0a77f20d656dea6134dfce7a9382d6f27ca125ebccbf3e49368bacae61fd4e71627525dabe791e3218cef17923fd9079aab1c8f5cedd7dfe8c1edc
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SSDEEP
1536:nyHi0gNQvp4BNRXAEwqScgDz0Bg2PDXJRde/SwvFMYVwC+QaMnoXjLl06d:kzR4zDfDXJVI+oo3m6d
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-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe.exe Set value (int) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" feasuiw.exe -
Executes dropped EXE 1 IoCs
pid Process 224 feasuiw.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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation 5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /l" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /v" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /s" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /m" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /x" feasuiw.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /w" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /b" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /n" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /t" 5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /h" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /y" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /o" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /c" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /t" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /d" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /z" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /k" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /p" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /a" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /r" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /f" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /e" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /i" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /g" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /u" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /j" feasuiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\feasuiw = "C:\\Users\\Admin\\feasuiw.exe /q" feasuiw.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4596 5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe.exe 4596 5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe 224 feasuiw.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4596 5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe.exe 224 feasuiw.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4596 wrote to memory of 224 4596 5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe.exe 84 PID 4596 wrote to memory of 224 4596 5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe.exe 84 PID 4596 wrote to memory of 224 4596 5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe.exe"C:\Users\Admin\AppData\Local\Temp\5c28953500d515ab8903f60bc4e910267452b2be4b47335d341dc94eaa0fc5fe.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4596 -
C:\Users\Admin\feasuiw.exe"C:\Users\Admin\feasuiw.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:224
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
100KB
MD575b9c3d6ee860e32884efacc0db75c63
SHA1a45b6e858700eb6c1bdaf7c86a6fd8ab81a29730
SHA256c0a26f295407f86ded04ac5fd72e316b2e65059b0bdd5b6291158dc353ad02d0
SHA512f95bf90a9f3e3b25c7e1b1c90b3011e1d0a78bd78c2abac318d9fd089e9d64beceed8013f08ebfb42ce8f1913f40443b0571d962e1ab45bd8bd5cc1d35cc4e59
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Filesize
100KB
MD575b9c3d6ee860e32884efacc0db75c63
SHA1a45b6e858700eb6c1bdaf7c86a6fd8ab81a29730
SHA256c0a26f295407f86ded04ac5fd72e316b2e65059b0bdd5b6291158dc353ad02d0
SHA512f95bf90a9f3e3b25c7e1b1c90b3011e1d0a78bd78c2abac318d9fd089e9d64beceed8013f08ebfb42ce8f1913f40443b0571d962e1ab45bd8bd5cc1d35cc4e59