Analysis
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max time kernel
281s -
max time network
365s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
29/11/2022, 03:31
Static task
static1
Behavioral task
behavioral1
Sample
671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe
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Size
148KB
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MD5
627247e960aebf36a834008be778e5f0
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SHA1
cdccf9379ae7d76f4584853c7b68b1c76d29318b
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SHA256
671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d
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SHA512
9b6187cce9c43879a96c3d8d03c816288ddc97232408f85e1a5950e8916e2a43eed8aeffeb34f85cc992c6ed00b2adf81699720f282ff13a3490f7d07a922332
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SSDEEP
1536:QBeaxAhsGXkR1SV++mRR0cL+iOJsz5czE4M52BoSHvSC3T4Gx4MZ+VSA:MH1rZRRTLz5cg4aY+IA
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-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" fouyi.exe Set value (int) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe -
Executes dropped EXE 1 IoCs
pid Process 704 fouyi.exe -
Loads dropped DLL 2 IoCs
pid Process 976 671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe 976 671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe -
Adds Run key to start application 2 TTPs 58 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /q" 671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /r" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /t" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /j" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /l" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /x" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /u" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /r" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /f" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /a" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /l" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /s" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /k" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /w" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /a" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /h" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /n" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /y" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /z" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /v" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /m" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /q" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /b" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /t" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /p" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /z" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /c" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /n" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /e" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /v" fouyi.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /f" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /p" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /c" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /m" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /u" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /h" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /w" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /d" fouyi.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /g" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /a" 671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /o" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /d" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /b" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /y" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /g" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /i" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /s" fouyi.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ 671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /x" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /j" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /o" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /i" fouyi.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /q" fouyi.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /e" fouyi.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\fouyi = "C:\\Users\\Admin\\fouyi.exe /k" fouyi.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 976 671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe 704 fouyi.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 976 671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe 704 fouyi.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 976 wrote to memory of 704 976 671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe 27 PID 976 wrote to memory of 704 976 671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe 27 PID 976 wrote to memory of 704 976 671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe 27 PID 976 wrote to memory of 704 976 671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe"C:\Users\Admin\AppData\Local\Temp\671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:976 -
C:\Users\Admin\fouyi.exe"C:\Users\Admin\fouyi.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:704
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
148KB
MD5be5e164df158b04b4574f074116dfb59
SHA1044b2022df78e4b35b5fe39ea345cf9a46aecb5b
SHA2563f881515b43397e5aac3a4b88dc3d5b200510c8efdcd998e3812a29d16dd3e33
SHA512f2aec20ebef02b4116aa81ad6c829687e558ed515c56a1512b2320a4cd065e7e9c898ad4394a7c2c7643074192dae480e8f2034d57fb33dc87f599ef95eda9ad
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Filesize
148KB
MD5be5e164df158b04b4574f074116dfb59
SHA1044b2022df78e4b35b5fe39ea345cf9a46aecb5b
SHA2563f881515b43397e5aac3a4b88dc3d5b200510c8efdcd998e3812a29d16dd3e33
SHA512f2aec20ebef02b4116aa81ad6c829687e558ed515c56a1512b2320a4cd065e7e9c898ad4394a7c2c7643074192dae480e8f2034d57fb33dc87f599ef95eda9ad
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Filesize
148KB
MD5be5e164df158b04b4574f074116dfb59
SHA1044b2022df78e4b35b5fe39ea345cf9a46aecb5b
SHA2563f881515b43397e5aac3a4b88dc3d5b200510c8efdcd998e3812a29d16dd3e33
SHA512f2aec20ebef02b4116aa81ad6c829687e558ed515c56a1512b2320a4cd065e7e9c898ad4394a7c2c7643074192dae480e8f2034d57fb33dc87f599ef95eda9ad
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Filesize
148KB
MD5be5e164df158b04b4574f074116dfb59
SHA1044b2022df78e4b35b5fe39ea345cf9a46aecb5b
SHA2563f881515b43397e5aac3a4b88dc3d5b200510c8efdcd998e3812a29d16dd3e33
SHA512f2aec20ebef02b4116aa81ad6c829687e558ed515c56a1512b2320a4cd065e7e9c898ad4394a7c2c7643074192dae480e8f2034d57fb33dc87f599ef95eda9ad