Analysis
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max time kernel
151s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
07/11/2022, 20:29
Static task
static1
Behavioral task
behavioral1
Sample
64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.exe
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Size
192KB
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MD5
042db644c480b685a9ce56485528f650
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SHA1
d415b7ed3dfa548043882770daa0d47f702dd1fd
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SHA256
64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906
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SHA512
af56356af45274cf4f9553e3bdc8fa3f8badd26a368ccc5b967d0f85cbbbf4a6359b35b9e2785fc3c5be03014f3890820d1bb9b11e7a686ceb158f132a886e1f
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SSDEEP
3072:WvZV4s1eQx755RCaFSoc98/yqz9Kf5L/SV5qK:G/jCaFSoc9kC5L/hK
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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" kxkoux.exe -
Executes dropped EXE 1 IoCs
pid Process 2180 kxkoux.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation 64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /d" kxkoux.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /l" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /n" kxkoux.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /r" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /q" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /a" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /m" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /h" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /e" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /w" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /w" 64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /o" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /c" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /s" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /t" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /f" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /v" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /p" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /x" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /b" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /y" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /i" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /j" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /z" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /g" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /u" kxkoux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kxkoux = "C:\\Users\\Admin\\kxkoux.exe /k" kxkoux.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-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings 64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2376 64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.exe 2376 64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe 2180 kxkoux.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2376 64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.exe 2180 kxkoux.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2376 wrote to memory of 2180 2376 64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.exe 81 PID 2376 wrote to memory of 2180 2376 64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.exe 81 PID 2376 wrote to memory of 2180 2376 64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.exe"C:\Users\Admin\AppData\Local\Temp\64a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906.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:2376 -
C:\Users\Admin\kxkoux.exe"C:\Users\Admin\kxkoux.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:2180
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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:3256
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
192KB
MD5042db644c480b685a9ce56485528f650
SHA1d415b7ed3dfa548043882770daa0d47f702dd1fd
SHA25664a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906
SHA512af56356af45274cf4f9553e3bdc8fa3f8badd26a368ccc5b967d0f85cbbbf4a6359b35b9e2785fc3c5be03014f3890820d1bb9b11e7a686ceb158f132a886e1f
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Filesize
192KB
MD5042db644c480b685a9ce56485528f650
SHA1d415b7ed3dfa548043882770daa0d47f702dd1fd
SHA25664a44957c7183f10b87f37ed7de45661022643dd042d880642fe07f465506906
SHA512af56356af45274cf4f9553e3bdc8fa3f8badd26a368ccc5b967d0f85cbbbf4a6359b35b9e2785fc3c5be03014f3890820d1bb9b11e7a686ceb158f132a886e1f