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Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
21/11/2022, 14:13
Static task
static1
Behavioral task
behavioral1
Sample
f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe
Resource
win7-20220812-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe
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Size
124KB
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MD5
0a02385dfe27c4be9e21381bee9616c0
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SHA1
167fa625af14c65941b57ef8d8a8babe9d4176e3
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SHA256
f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19
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SHA512
75a7084073600d536d0220000444353d0863c39f1fe5202ea372e9739fc57b85d2833392c94d70dbca1481d72c6e9d86a2b99463e6976b17edd22cedc5ba16fb
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SSDEEP
1536:VnzmBE3Fb7fwjo0Fu0efsf32eUeuGHkXqh1PW1LnNbxNmMj1KNQsGn/D9u:Vz3bQQE/2eUeTiqHW917mMGxGn/D9u
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" f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" niiduk.exe -
Executes dropped EXE 2 IoCs
pid Process 4228 niiduk.exe 3328 niiduk.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 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.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\niiduk = "C:\\Users\\Admin\\niiduk.exe /m" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /t" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /a" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /o" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /e" niiduk.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /h" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /g" niiduk.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /q" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /z" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /s" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /j" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /f" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /v" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /h" f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /y" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /l" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /n" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /d" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /k" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /b" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /u" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /i" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /x" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /r" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /w" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /c" niiduk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niiduk = "C:\\Users\\Admin\\niiduk.exe /p" niiduk.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 value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 niiduk.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum niiduk.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 niiduk.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 5052 set thread context of 2436 5052 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 84 PID 4228 set thread context of 3328 4228 niiduk.exe 90 -
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 2436 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 2436 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe 3328 niiduk.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 5052 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 2436 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 4228 niiduk.exe 3328 niiduk.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 5052 wrote to memory of 2436 5052 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 84 PID 5052 wrote to memory of 2436 5052 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 84 PID 5052 wrote to memory of 2436 5052 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 84 PID 5052 wrote to memory of 2436 5052 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 84 PID 5052 wrote to memory of 2436 5052 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 84 PID 5052 wrote to memory of 2436 5052 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 84 PID 5052 wrote to memory of 2436 5052 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 84 PID 5052 wrote to memory of 2436 5052 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 84 PID 5052 wrote to memory of 2436 5052 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 84 PID 2436 wrote to memory of 4228 2436 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 87 PID 2436 wrote to memory of 4228 2436 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 87 PID 2436 wrote to memory of 4228 2436 f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe 87 PID 4228 wrote to memory of 3328 4228 niiduk.exe 90 PID 4228 wrote to memory of 3328 4228 niiduk.exe 90 PID 4228 wrote to memory of 3328 4228 niiduk.exe 90 PID 4228 wrote to memory of 3328 4228 niiduk.exe 90 PID 4228 wrote to memory of 3328 4228 niiduk.exe 90 PID 4228 wrote to memory of 3328 4228 niiduk.exe 90 PID 4228 wrote to memory of 3328 4228 niiduk.exe 90 PID 4228 wrote to memory of 3328 4228 niiduk.exe 90 PID 4228 wrote to memory of 3328 4228 niiduk.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe"C:\Users\Admin\AppData\Local\Temp\f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5052 -
C:\Users\Admin\AppData\Local\Temp\f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19.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:2436 -
C:\Users\Admin\niiduk.exe"C:\Users\Admin\niiduk.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4228 -
C:\Users\Admin\niiduk.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:3328
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
124KB
MD50a02385dfe27c4be9e21381bee9616c0
SHA1167fa625af14c65941b57ef8d8a8babe9d4176e3
SHA256f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19
SHA51275a7084073600d536d0220000444353d0863c39f1fe5202ea372e9739fc57b85d2833392c94d70dbca1481d72c6e9d86a2b99463e6976b17edd22cedc5ba16fb
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Filesize
124KB
MD50a02385dfe27c4be9e21381bee9616c0
SHA1167fa625af14c65941b57ef8d8a8babe9d4176e3
SHA256f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19
SHA51275a7084073600d536d0220000444353d0863c39f1fe5202ea372e9739fc57b85d2833392c94d70dbca1481d72c6e9d86a2b99463e6976b17edd22cedc5ba16fb
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Filesize
124KB
MD50a02385dfe27c4be9e21381bee9616c0
SHA1167fa625af14c65941b57ef8d8a8babe9d4176e3
SHA256f9e499490d6d110fe1581886f40fa62a66286be38c264cdd2ee9bf0f32cdba19
SHA51275a7084073600d536d0220000444353d0863c39f1fe5202ea372e9739fc57b85d2833392c94d70dbca1481d72c6e9d86a2b99463e6976b17edd22cedc5ba16fb