Analysis
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max time kernel
153s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
02-10-2022 22:39
Static task
static1
Behavioral task
behavioral1
Sample
f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe
Resource
win7-20220812-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe
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Size
120KB
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MD5
70288882fc616103d69d89954458ef38
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SHA1
aee46e94ba23b046ebc41eac5cb80dd4b09bbc60
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SHA256
f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87
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SHA512
f5eda463352ce3051972efa220a97cd8fd863fca8cf1467efccf6a248d98296803a1863ab2ad4ff8a75b3991a05647a45da55b43d6176ebb85be41f568e0d997
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SSDEEP
3072:n9f+1fp8AyTWitZBp/jTJd6qrmR4Q0AejQ0g:92xuT17Bl/P6qnC
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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" niiwaun.exe -
Executes dropped EXE 2 IoCs
pid Process 5076 niiwaun.exe 4228 niiwaun.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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /p" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /a" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /s" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /n" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /t" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /e" niiwaun.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /x" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /y" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /i" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /l" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /c" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /u" niiwaun.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /q" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /w" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /m" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /h" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /z" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /f" f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /f" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /g" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /d" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /k" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /j" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /v" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /b" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /r" niiwaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiwaun = "C:\\Users\\Admin\\niiwaun.exe /o" niiwaun.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 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum niiwaun.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 niiwaun.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 niiwaun.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4596 set thread context of 1384 4596 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 88 PID 5076 set thread context of 4228 5076 niiwaun.exe 97 -
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 1384 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 1384 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe 4228 niiwaun.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 4596 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 1384 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 5076 niiwaun.exe 4228 niiwaun.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 4596 wrote to memory of 1384 4596 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 88 PID 4596 wrote to memory of 1384 4596 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 88 PID 4596 wrote to memory of 1384 4596 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 88 PID 4596 wrote to memory of 1384 4596 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 88 PID 4596 wrote to memory of 1384 4596 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 88 PID 4596 wrote to memory of 1384 4596 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 88 PID 4596 wrote to memory of 1384 4596 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 88 PID 4596 wrote to memory of 1384 4596 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 88 PID 4596 wrote to memory of 1384 4596 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 88 PID 1384 wrote to memory of 5076 1384 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 96 PID 1384 wrote to memory of 5076 1384 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 96 PID 1384 wrote to memory of 5076 1384 f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe 96 PID 5076 wrote to memory of 4228 5076 niiwaun.exe 97 PID 5076 wrote to memory of 4228 5076 niiwaun.exe 97 PID 5076 wrote to memory of 4228 5076 niiwaun.exe 97 PID 5076 wrote to memory of 4228 5076 niiwaun.exe 97 PID 5076 wrote to memory of 4228 5076 niiwaun.exe 97 PID 5076 wrote to memory of 4228 5076 niiwaun.exe 97 PID 5076 wrote to memory of 4228 5076 niiwaun.exe 97 PID 5076 wrote to memory of 4228 5076 niiwaun.exe 97 PID 5076 wrote to memory of 4228 5076 niiwaun.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe"C:\Users\Admin\AppData\Local\Temp\f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4596 -
C:\Users\Admin\AppData\Local\Temp\f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87.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:1384 -
C:\Users\Admin\niiwaun.exe"C:\Users\Admin\niiwaun.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5076 -
C:\Users\Admin\niiwaun.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:4228
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
120KB
MD570288882fc616103d69d89954458ef38
SHA1aee46e94ba23b046ebc41eac5cb80dd4b09bbc60
SHA256f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87
SHA512f5eda463352ce3051972efa220a97cd8fd863fca8cf1467efccf6a248d98296803a1863ab2ad4ff8a75b3991a05647a45da55b43d6176ebb85be41f568e0d997
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Filesize
120KB
MD570288882fc616103d69d89954458ef38
SHA1aee46e94ba23b046ebc41eac5cb80dd4b09bbc60
SHA256f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87
SHA512f5eda463352ce3051972efa220a97cd8fd863fca8cf1467efccf6a248d98296803a1863ab2ad4ff8a75b3991a05647a45da55b43d6176ebb85be41f568e0d997
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Filesize
120KB
MD570288882fc616103d69d89954458ef38
SHA1aee46e94ba23b046ebc41eac5cb80dd4b09bbc60
SHA256f669fe3320f2514c8efb8ed9703edb4d5d9cab733c98be58629fc115cae43e87
SHA512f5eda463352ce3051972efa220a97cd8fd863fca8cf1467efccf6a248d98296803a1863ab2ad4ff8a75b3991a05647a45da55b43d6176ebb85be41f568e0d997