Analysis
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max time kernel
151s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
05-12-2022 18:53
Static task
static1
Behavioral task
behavioral1
Sample
aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a.exe
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Size
228KB
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MD5
ab1318b9417086c140970a34df089783
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SHA1
c45a561e37d0dd2a80f090bc2083e5d0b27c885d
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SHA256
aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a
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SHA512
8abfaa3f72bf2f44c4f0cdb8836124262d221d3c5d0c830f506836dcaca0f9040eb2d97f942164a0016974c4bb41c1a871ebe4cb333a260f7d10916b77390cc4
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SSDEEP
6144:FK5H3dwqsNy5ibpNjl4EqxF6snji81RUinKICl:Q5XdQxl
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" aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" nietu.exe -
Executes dropped EXE 1 IoCs
pid Process 3932 nietu.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 aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a.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\nietu = "C:\\Users\\Admin\\nietu.exe /r" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /a" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /y" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /g" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /x" nietu.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /q" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /d" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /n" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /c" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /v" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /t" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /f" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /p" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /l" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /h" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /b" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /o" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /i" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /w" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /z" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /k" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /s" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /e" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /u" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /m" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /j" nietu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nietu = "C:\\Users\\Admin\\nietu.exe /g" aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ nietu.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 4992 aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a.exe 4992 aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe 3932 nietu.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4992 aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a.exe 3932 nietu.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4992 wrote to memory of 3932 4992 aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a.exe 81 PID 4992 wrote to memory of 3932 4992 aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a.exe 81 PID 4992 wrote to memory of 3932 4992 aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a.exe"C:\Users\Admin\AppData\Local\Temp\aa73077867a4fe1baaec4fbeb54066d997108a35296581cd49f4d0878d64377a.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:4992 -
C:\Users\Admin\nietu.exe"C:\Users\Admin\nietu.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:3932
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
228KB
MD5f47b6a9d099770b527be2cb9088bdded
SHA19eedf8d2b9aa450a048008a893e0a97ef7c348b1
SHA2568af8d080e448c673adc8bfdf2f973f60e3d9bbc62f62c8abbe9fdd7b249abbd3
SHA51263ce0384223c5988b544ae1f5f5c1f56843767210a3016cebddc3597126c61cc743e2106e1aa867e847c3803c8df7b0ec2e66f084884ef86034a9b023b85f0ae
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Filesize
228KB
MD5f47b6a9d099770b527be2cb9088bdded
SHA19eedf8d2b9aa450a048008a893e0a97ef7c348b1
SHA2568af8d080e448c673adc8bfdf2f973f60e3d9bbc62f62c8abbe9fdd7b249abbd3
SHA51263ce0384223c5988b544ae1f5f5c1f56843767210a3016cebddc3597126c61cc743e2106e1aa867e847c3803c8df7b0ec2e66f084884ef86034a9b023b85f0ae