Analysis
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max time kernel
153s -
max time network
44s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
11/10/2022, 14:07
Static task
static1
Behavioral task
behavioral1
Sample
6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.exe
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Size
132KB
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MD5
7571d99d1e1570e5fb927ca8f1073cc3
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SHA1
69e5e514f779e0c7aedeea094bc28e592a6aa5a3
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SHA256
6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73
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SHA512
fc945d180f46f7aa316f28d601d9f2508fdaf3da23eed8c89138b449e921c686b0600c29851a43375a7466eae95ebca98d4d77f2139862b538539fc6b3633174
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SSDEEP
1536:x7xPjeTI6zoXFixXVG4e2JLBJ3Ue05znybzPe9jiwo7JaSh:DjeTISMFixFG4e1ybG+wQj
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-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" wouka.exe -
Executes dropped EXE 1 IoCs
pid Process 588 wouka.exe -
Loads dropped DLL 2 IoCs
pid Process 1220 6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.exe 1220 6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.exe -
Adds Run key to start application 2 TTPs 53 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /g" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /D" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /M" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /V" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /n" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /b" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /y" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /W" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /r" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /l" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /Z" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /L" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /i" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /v" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /A" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /s" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /O" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /w" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /U" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /e" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /T" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /a" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /o" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /X" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /d" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /B" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /J" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /S" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /k" wouka.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /a" 6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /j" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /f" wouka.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /c" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /t" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /K" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /I" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /P" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /m" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /h" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /R" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /H" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /Y" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /q" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /E" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /N" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /F" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /u" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /G" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /x" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /p" wouka.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\wouka = "C:\\Users\\Admin\\wouka.exe /Q" wouka.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 1220 6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe 588 wouka.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1220 6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.exe 588 wouka.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1220 wrote to memory of 588 1220 6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.exe 26 PID 1220 wrote to memory of 588 1220 6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.exe 26 PID 1220 wrote to memory of 588 1220 6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.exe 26 PID 1220 wrote to memory of 588 1220 6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.exe"C:\Users\Admin\AppData\Local\Temp\6b23dc3a10ed7c95fe27b50c34ef10df0b54f739af8287b8aeb843e4068bbc73.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:1220 -
C:\Users\Admin\wouka.exe"C:\Users\Admin\wouka.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:588
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
132KB
MD5062855b34722d0cdd3e9e2f330cf3d81
SHA10b07cf3facc147f1ad385f76801c0e4895304e06
SHA256664150fc523c96d4145e53461b5233e42f82ced4f034141190afc74227164a5f
SHA512bfd6b9b7c11ed61da586f291adabad6cc32919c90268dd88a2d072823a914f414d8fcc2fd9cc4c3889f08d64ee8e3876230310255a3e4d84a6b8041991489007
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Filesize
132KB
MD5062855b34722d0cdd3e9e2f330cf3d81
SHA10b07cf3facc147f1ad385f76801c0e4895304e06
SHA256664150fc523c96d4145e53461b5233e42f82ced4f034141190afc74227164a5f
SHA512bfd6b9b7c11ed61da586f291adabad6cc32919c90268dd88a2d072823a914f414d8fcc2fd9cc4c3889f08d64ee8e3876230310255a3e4d84a6b8041991489007
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Filesize
132KB
MD5062855b34722d0cdd3e9e2f330cf3d81
SHA10b07cf3facc147f1ad385f76801c0e4895304e06
SHA256664150fc523c96d4145e53461b5233e42f82ced4f034141190afc74227164a5f
SHA512bfd6b9b7c11ed61da586f291adabad6cc32919c90268dd88a2d072823a914f414d8fcc2fd9cc4c3889f08d64ee8e3876230310255a3e4d84a6b8041991489007
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Filesize
132KB
MD5062855b34722d0cdd3e9e2f330cf3d81
SHA10b07cf3facc147f1ad385f76801c0e4895304e06
SHA256664150fc523c96d4145e53461b5233e42f82ced4f034141190afc74227164a5f
SHA512bfd6b9b7c11ed61da586f291adabad6cc32919c90268dd88a2d072823a914f414d8fcc2fd9cc4c3889f08d64ee8e3876230310255a3e4d84a6b8041991489007