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Analysis
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max time kernel
169s -
max time network
161s -
platform
windows10-2004_x64 -
resource
win10v2004-20231025-en -
resource tags
arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system -
submitted
04/11/2023, 14:11
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
NEAS.4a635c77d44a596ef0b5c0e38c05d9c0.exe
Resource
win7-20231023-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
NEAS.4a635c77d44a596ef0b5c0e38c05d9c0.exe
Resource
win10v2004-20231025-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
NEAS.4a635c77d44a596ef0b5c0e38c05d9c0.exe
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Size
204KB
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MD5
4a635c77d44a596ef0b5c0e38c05d9c0
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SHA1
20515e905b52ea2021e3e43aa7fb4801e480e57e
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SHA256
2c19efe945a9b183be41c2db5b883cae7156fe01a37376305f47bc5af299fb79
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SHA512
8fc31cb56602adc80ef0a575fe20ee27756a6824a64aad155a05d071a2f24d30516138600e82a8175434aed8d99d2af0861d97edc9e1794ff75967b6e54f6f1e
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SSDEEP
3072:QmRW8MDaO0tQ9nLHbB9W0c1TqECzR/mkSYGrl9ymgYUWr5:rAFmO4QxL7B9W0c1RCzR/fSmlY
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-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" NEAS.4a635c77d44a596ef0b5c0e38c05d9c0.exe Set value (int) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" cotaw.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-1-5-21-177160434-2093019976-369403398-1000\Control Panel\International\Geo\Nation NEAS.4a635c77d44a596ef0b5c0e38c05d9c0.exe -
Executes dropped EXE 1 IoCs
pid Process 2344 cotaw.exe -
Adds Run key to start application 2 TTPs 27 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /u" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /z" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /p" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /v" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /i" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /f" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /y" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /t" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /b" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /g" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /m" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /w" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /r" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /d" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /k" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /c" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /h" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /q" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /z" NEAS.4a635c77d44a596ef0b5c0e38c05d9c0.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /x" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /s" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /j" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /e" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /o" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /n" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /a" cotaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cotaw = "C:\\Users\\Admin\\cotaw.exe /l" cotaw.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 1188 NEAS.4a635c77d44a596ef0b5c0e38c05d9c0.exe 1188 NEAS.4a635c77d44a596ef0b5c0e38c05d9c0.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe 2344 cotaw.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1188 NEAS.4a635c77d44a596ef0b5c0e38c05d9c0.exe 2344 cotaw.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1188 wrote to memory of 2344 1188 NEAS.4a635c77d44a596ef0b5c0e38c05d9c0.exe 96 PID 1188 wrote to memory of 2344 1188 NEAS.4a635c77d44a596ef0b5c0e38c05d9c0.exe 96 PID 1188 wrote to memory of 2344 1188 NEAS.4a635c77d44a596ef0b5c0e38c05d9c0.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\NEAS.4a635c77d44a596ef0b5c0e38c05d9c0.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.4a635c77d44a596ef0b5c0e38c05d9c0.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:1188 -
C:\Users\Admin\cotaw.exe"C:\Users\Admin\cotaw.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:2344
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
204KB
MD5b2140d2d162983ea9ca6f957e861b12e
SHA19697f46a09f357895fee642699e14b0ccb562891
SHA2565b31a9f91740260ba2e96bd54507cb02872cf7c70991379503567a90e117260f
SHA512e4be02838d746d7ff9ce8695d02da42b36ef64ac985db94af14587a0a7b7d368699272088d46687570aad0c3bdd4346f13c64e5d1874952b50454eab1f70c86b
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Filesize
204KB
MD5b2140d2d162983ea9ca6f957e861b12e
SHA19697f46a09f357895fee642699e14b0ccb562891
SHA2565b31a9f91740260ba2e96bd54507cb02872cf7c70991379503567a90e117260f
SHA512e4be02838d746d7ff9ce8695d02da42b36ef64ac985db94af14587a0a7b7d368699272088d46687570aad0c3bdd4346f13c64e5d1874952b50454eab1f70c86b
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Filesize
204KB
MD5b2140d2d162983ea9ca6f957e861b12e
SHA19697f46a09f357895fee642699e14b0ccb562891
SHA2565b31a9f91740260ba2e96bd54507cb02872cf7c70991379503567a90e117260f
SHA512e4be02838d746d7ff9ce8695d02da42b36ef64ac985db94af14587a0a7b7d368699272088d46687570aad0c3bdd4346f13c64e5d1874952b50454eab1f70c86b