Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
03/12/2022, 20:14
Static task
static1
Behavioral task
behavioral1
Sample
d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.exe
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Size
172KB
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MD5
166c47b63192da7a3155b0cce159ccd0
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SHA1
2bfb6ecb35163a77984e0e46e7203363f750b466
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SHA256
d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854
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SHA512
43fd7e16af9b17d7306a50beabb0c286410c11f8c81bb80106c4772d7950873ecea9df478842fcf2a316d126c80009593eca6e76e7b11b77165cc2d2d751a53e
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SSDEEP
3072:3r7ZB1IEZMv44rJYtHfTyzcfMZcCUfNg0Bq60CdaN:b7ZXk442HfTRf0C
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" d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" niuum.exe -
Executes dropped EXE 1 IoCs
pid Process 4896 niuum.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 d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.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\niuum = "C:\\Users\\Admin\\niuum.exe /s" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /v" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /t" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /f" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /k" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /p" niuum.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /n" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /g" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /e" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /u" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /x" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /y" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /l" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /d" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /z" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /a" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /c" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /q" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /i" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /h" niuum.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /m" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /j" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /o" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /w" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /o" d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /r" niuum.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niuum = "C:\\Users\\Admin\\niuum.exe /b" niuum.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4800 d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.exe 4800 d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe 4896 niuum.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4800 d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.exe 4896 niuum.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4800 wrote to memory of 4896 4800 d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.exe 80 PID 4800 wrote to memory of 4896 4800 d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.exe 80 PID 4800 wrote to memory of 4896 4800 d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.exe"C:\Users\Admin\AppData\Local\Temp\d9bf8ceda15e1572495be40d60cec5aaba852497237407bc87f3eabe22b87854.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4800 -
C:\Users\Admin\niuum.exe"C:\Users\Admin\niuum.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:4896
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:4836
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
172KB
MD5c7f529fdf54aee9625962093c0c2da00
SHA1650c5bbc345685a0ff9247e201fdc22f8598a50b
SHA256ab3c882faec51fb209cd47f80ff13be251ab79701f4a0d1b9cc6ea3b30f287a8
SHA512560cb3a24623b5608de7d4ac3691fe682a842b6bb5325db78461534e62d7fd5f3f807822276d6ded207a244c887e8a43ed9e92b11aaf67a06678e44ff09a6929
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Filesize
172KB
MD5c7f529fdf54aee9625962093c0c2da00
SHA1650c5bbc345685a0ff9247e201fdc22f8598a50b
SHA256ab3c882faec51fb209cd47f80ff13be251ab79701f4a0d1b9cc6ea3b30f287a8
SHA512560cb3a24623b5608de7d4ac3691fe682a842b6bb5325db78461534e62d7fd5f3f807822276d6ded207a244c887e8a43ed9e92b11aaf67a06678e44ff09a6929