Analysis
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max time kernel
187s -
max time network
193s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
30-10-2022 19:37
Static task
static1
Behavioral task
behavioral1
Sample
f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe
Resource
win7-20220812-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe
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Size
136KB
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MD5
a19b17510e734fc7b4c4223093bb9449
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SHA1
2752e7c7737ac85e0495c73a1aa66f171a2fc8a6
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SHA256
f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490
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SHA512
ace211fd6365a741c196de23d1b4b324e514c5194de28ed4fae760d0d3871c682a950eec5628808ed4038bf192c330d7f2d58cb2b7a9121d448569a7832dfe25
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SSDEEP
1536:/2pSctICjv4e79/iLu07bt1DEfS2ZO/0IUKzImGY/2LoDlODbnoANLUv+tY5tzdO:/2XqGFe1DEnU/uK8m/2MqbLU2SZu1nH
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" leewu.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe -
Executes dropped EXE 2 IoCs
pid Process 864 leewu.exe 1620 leewu.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 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /i" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /k" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /n" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /h" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /z" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /y" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /s" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /v" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /j" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /r" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /q" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /x" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /d" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /s" f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /c" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /a" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /p" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /e" leewu.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /f" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /g" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /o" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /l" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /m" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /b" leewu.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /u" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /t" leewu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\leewu = "C:\\Users\\Admin\\leewu.exe /w" leewu.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 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum leewu.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 leewu.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 leewu.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3544 set thread context of 1060 3544 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 81 PID 864 set thread context of 1620 864 leewu.exe 83 -
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 1060 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 1060 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe 1620 leewu.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 3544 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 1060 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 864 leewu.exe 1620 leewu.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 3544 wrote to memory of 1060 3544 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 81 PID 3544 wrote to memory of 1060 3544 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 81 PID 3544 wrote to memory of 1060 3544 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 81 PID 3544 wrote to memory of 1060 3544 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 81 PID 3544 wrote to memory of 1060 3544 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 81 PID 3544 wrote to memory of 1060 3544 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 81 PID 3544 wrote to memory of 1060 3544 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 81 PID 3544 wrote to memory of 1060 3544 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 81 PID 3544 wrote to memory of 1060 3544 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 81 PID 1060 wrote to memory of 864 1060 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 82 PID 1060 wrote to memory of 864 1060 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 82 PID 1060 wrote to memory of 864 1060 f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe 82 PID 864 wrote to memory of 1620 864 leewu.exe 83 PID 864 wrote to memory of 1620 864 leewu.exe 83 PID 864 wrote to memory of 1620 864 leewu.exe 83 PID 864 wrote to memory of 1620 864 leewu.exe 83 PID 864 wrote to memory of 1620 864 leewu.exe 83 PID 864 wrote to memory of 1620 864 leewu.exe 83 PID 864 wrote to memory of 1620 864 leewu.exe 83 PID 864 wrote to memory of 1620 864 leewu.exe 83 PID 864 wrote to memory of 1620 864 leewu.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe"C:\Users\Admin\AppData\Local\Temp\f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3544 -
C:\Users\Admin\AppData\Local\Temp\f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490.exe742⤵
- 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:1060 -
C:\Users\Admin\leewu.exe"C:\Users\Admin\leewu.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:864 -
C:\Users\Admin\leewu.exe744⤵
- 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:1620
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
136KB
MD5a19b17510e734fc7b4c4223093bb9449
SHA12752e7c7737ac85e0495c73a1aa66f171a2fc8a6
SHA256f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490
SHA512ace211fd6365a741c196de23d1b4b324e514c5194de28ed4fae760d0d3871c682a950eec5628808ed4038bf192c330d7f2d58cb2b7a9121d448569a7832dfe25
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Filesize
136KB
MD5a19b17510e734fc7b4c4223093bb9449
SHA12752e7c7737ac85e0495c73a1aa66f171a2fc8a6
SHA256f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490
SHA512ace211fd6365a741c196de23d1b4b324e514c5194de28ed4fae760d0d3871c682a950eec5628808ed4038bf192c330d7f2d58cb2b7a9121d448569a7832dfe25
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Filesize
136KB
MD5a19b17510e734fc7b4c4223093bb9449
SHA12752e7c7737ac85e0495c73a1aa66f171a2fc8a6
SHA256f466826c79273bdf403ffba47e3fbd7cbfbff7201176dad527c6f27b8a9a7490
SHA512ace211fd6365a741c196de23d1b4b324e514c5194de28ed4fae760d0d3871c682a950eec5628808ed4038bf192c330d7f2d58cb2b7a9121d448569a7832dfe25