Analysis
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max time kernel
150s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
11-10-2022 15:22
Static task
static1
Behavioral task
behavioral1
Sample
de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe
Resource
win7-20220812-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe
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Size
126KB
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MD5
68988100329b17da6dd70917e18fb962
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SHA1
6298e6f52448b8cc440f8d9f6de9301db34b38d3
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SHA256
de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488
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SHA512
2e8ca5ce158e891774ec71bba8ed02688be22a6d727e8630f00535ceef9f98d485c5d545a3686f782b5d57acbe491c31662d7bdf1b0d9a266c6e4899ef85cbf4
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SSDEEP
3072:IrmaiaKsjtJ7YGiHiVchuT4ghw+uSs0xpEc3B:X2RjtFYGiScoK+uSsSEi
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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" mutos.exe -
Executes dropped EXE 2 IoCs
pid Process 3100 mutos.exe 1468 mutos.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /p" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /b" de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /w" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /l" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /n" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /g" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /m" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /v" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /b" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /c" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /h" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /a" mutos.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /o" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /i" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /r" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /z" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /j" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /d" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /e" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /f" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /s" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /k" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /q" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /x" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /y" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /u" mutos.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mutos = "C:\\Users\\Admin\\mutos.exe /t" mutos.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 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum mutos.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 mutos.exe -
Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File opened for modification C:\Users\Admin\c\autorun.inf mutos.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3028 set thread context of 3672 3028 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 81 PID 3100 set thread context of 1468 3100 mutos.exe 84 -
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 3672 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 3672 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe 1468 mutos.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 3028 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 3672 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 3100 mutos.exe 1468 mutos.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 3028 wrote to memory of 3672 3028 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 81 PID 3028 wrote to memory of 3672 3028 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 81 PID 3028 wrote to memory of 3672 3028 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 81 PID 3028 wrote to memory of 3672 3028 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 81 PID 3028 wrote to memory of 3672 3028 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 81 PID 3028 wrote to memory of 3672 3028 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 81 PID 3028 wrote to memory of 3672 3028 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 81 PID 3028 wrote to memory of 3672 3028 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 81 PID 3028 wrote to memory of 3672 3028 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 81 PID 3672 wrote to memory of 3100 3672 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 83 PID 3672 wrote to memory of 3100 3672 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 83 PID 3672 wrote to memory of 3100 3672 de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe 83 PID 3100 wrote to memory of 1468 3100 mutos.exe 84 PID 3100 wrote to memory of 1468 3100 mutos.exe 84 PID 3100 wrote to memory of 1468 3100 mutos.exe 84 PID 3100 wrote to memory of 1468 3100 mutos.exe 84 PID 3100 wrote to memory of 1468 3100 mutos.exe 84 PID 3100 wrote to memory of 1468 3100 mutos.exe 84 PID 3100 wrote to memory of 1468 3100 mutos.exe 84 PID 3100 wrote to memory of 1468 3100 mutos.exe 84 PID 3100 wrote to memory of 1468 3100 mutos.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe"C:\Users\Admin\AppData\Local\Temp\de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3028 -
C:\Users\Admin\AppData\Local\Temp\de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488.exe712⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3672 -
C:\Users\Admin\mutos.exe"C:\Users\Admin\mutos.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3100 -
C:\Users\Admin\mutos.exe714⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1468
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
126KB
MD568988100329b17da6dd70917e18fb962
SHA16298e6f52448b8cc440f8d9f6de9301db34b38d3
SHA256de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488
SHA5122e8ca5ce158e891774ec71bba8ed02688be22a6d727e8630f00535ceef9f98d485c5d545a3686f782b5d57acbe491c31662d7bdf1b0d9a266c6e4899ef85cbf4
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Filesize
126KB
MD568988100329b17da6dd70917e18fb962
SHA16298e6f52448b8cc440f8d9f6de9301db34b38d3
SHA256de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488
SHA5122e8ca5ce158e891774ec71bba8ed02688be22a6d727e8630f00535ceef9f98d485c5d545a3686f782b5d57acbe491c31662d7bdf1b0d9a266c6e4899ef85cbf4
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Filesize
126KB
MD568988100329b17da6dd70917e18fb962
SHA16298e6f52448b8cc440f8d9f6de9301db34b38d3
SHA256de54c688af8f2b9f24423161e156bdad05fd5fcc74c4fe1a9fca9b21ef709488
SHA5122e8ca5ce158e891774ec71bba8ed02688be22a6d727e8630f00535ceef9f98d485c5d545a3686f782b5d57acbe491c31662d7bdf1b0d9a266c6e4899ef85cbf4