Analysis
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max time kernel
207s -
max time network
247s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
05-12-2022 18:52
Static task
static1
Behavioral task
behavioral1
Sample
ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39.exe
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Size
336KB
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MD5
51fcb3aea597ad4ec4459b20d4664d8d
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SHA1
6f9c61155ca8823e62b102191ff61ca14398ac1d
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SHA256
ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39
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SHA512
d82eac9919f0c78c77735df294e412c7e625d2975de93e02c4805ba186bc60dc522679cc56bac4f7862462ee853daa73a8f6c0dda497e4d3bb418b69c750b3d5
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SSDEEP
6144:TANx472WGk1Y3nmQcuyKQ5DzEJewavj9+zU5S5Nn:k072WGk1Y3nmQcjKAPEJR5
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" ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39.exe Set value (int) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" mesal.exe -
Executes dropped EXE 1 IoCs
pid Process 2184 mesal.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 ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39.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\mesal = "C:\\Users\\Admin\\mesal.exe /i" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /r" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /l" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /l" ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /n" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /g" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /t" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /x" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /q" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /e" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /v" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /f" mesal.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /k" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /w" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /d" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /u" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /c" mesal.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /j" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /b" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /y" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /h" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /p" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /a" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /m" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /o" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /z" mesal.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mesal = "C:\\Users\\Admin\\mesal.exe /s" mesal.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 220 ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39.exe 220 ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe 2184 mesal.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 220 ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39.exe 2184 mesal.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 220 wrote to memory of 2184 220 ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39.exe 89 PID 220 wrote to memory of 2184 220 ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39.exe 89 PID 220 wrote to memory of 2184 220 ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39.exe"C:\Users\Admin\AppData\Local\Temp\ce12171e177a59e6ac79d79c598752715150b6b199c96e48bf52fefa5522ad39.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:220 -
C:\Users\Admin\mesal.exe"C:\Users\Admin\mesal.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:2184
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
336KB
MD595e434e8aebd8d91538c2e90f6a2872f
SHA1ed18418e240e738f6f22b38a36686800a0f639c8
SHA2563236c9142039cde1825588d52c7afd2dfeb732947af76468f532968b0d3e8632
SHA512e50fba16b444e7fc8c265f07370a32eee6d780d61ce086650a4de2beeffbae055ab9e9cd98d9514182deeeb0bd3f875fd644072598a7ad0a4db79050d3ce6f69
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Filesize
336KB
MD595e434e8aebd8d91538c2e90f6a2872f
SHA1ed18418e240e738f6f22b38a36686800a0f639c8
SHA2563236c9142039cde1825588d52c7afd2dfeb732947af76468f532968b0d3e8632
SHA512e50fba16b444e7fc8c265f07370a32eee6d780d61ce086650a4de2beeffbae055ab9e9cd98d9514182deeeb0bd3f875fd644072598a7ad0a4db79050d3ce6f69