Analysis
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max time kernel
150s -
max time network
60s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
20/10/2022, 10:18
Static task
static1
Behavioral task
behavioral1
Sample
8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe
Resource
win7-20220812-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
2 signatures
150 seconds
General
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Target
8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe
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Size
213KB
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MD5
7bbbd1af1418feff86a8fbee7ec6eba8
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SHA1
f8dd0d86b07bdaffb8078ee4670a9e0b7a0f3fd0
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SHA256
8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e
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SHA512
fc22e806ba701f69da090294c6905c8c24239ec147412a3cbb1661765210afc3dde0e5cd781bea38b5e7c70c283da4afb574758eed947692c8f472de5424144c
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SSDEEP
6144:aUXZudUEZzz+1+VJrkWEg9fS7SubPKpqXa4:aUXZukcVJrkWEd
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" zoauf.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe -
Executes dropped EXE 1 IoCs
pid Process 1616 zoauf.exe -
Loads dropped DLL 2 IoCs
pid Process 1976 8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe 1976 8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /h" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /e" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /t" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /f" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /a" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /j" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /y" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /l" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /w" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /w" 8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /u" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /d" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /v" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /r" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /q" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /i" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /n" zoauf.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /g" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /o" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /c" zoauf.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /p" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /k" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /b" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /m" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /z" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /x" zoauf.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\zoauf = "C:\\Users\\Admin\\zoauf.exe /s" zoauf.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 opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum zoauf.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 zoauf.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 1976 8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe 1616 zoauf.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1976 8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe 1616 zoauf.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1976 wrote to memory of 1616 1976 8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe 26 PID 1976 wrote to memory of 1616 1976 8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe 26 PID 1976 wrote to memory of 1616 1976 8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe 26 PID 1976 wrote to memory of 1616 1976 8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe"C:\Users\Admin\AppData\Local\Temp\8dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1976 -
C:\Users\Admin\zoauf.exe"C:\Users\Admin\zoauf.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1616
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
213KB
MD57bbbd1af1418feff86a8fbee7ec6eba8
SHA1f8dd0d86b07bdaffb8078ee4670a9e0b7a0f3fd0
SHA2568dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e
SHA512fc22e806ba701f69da090294c6905c8c24239ec147412a3cbb1661765210afc3dde0e5cd781bea38b5e7c70c283da4afb574758eed947692c8f472de5424144c
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Filesize
213KB
MD57bbbd1af1418feff86a8fbee7ec6eba8
SHA1f8dd0d86b07bdaffb8078ee4670a9e0b7a0f3fd0
SHA2568dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e
SHA512fc22e806ba701f69da090294c6905c8c24239ec147412a3cbb1661765210afc3dde0e5cd781bea38b5e7c70c283da4afb574758eed947692c8f472de5424144c
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Filesize
213KB
MD57bbbd1af1418feff86a8fbee7ec6eba8
SHA1f8dd0d86b07bdaffb8078ee4670a9e0b7a0f3fd0
SHA2568dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e
SHA512fc22e806ba701f69da090294c6905c8c24239ec147412a3cbb1661765210afc3dde0e5cd781bea38b5e7c70c283da4afb574758eed947692c8f472de5424144c
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Filesize
213KB
MD57bbbd1af1418feff86a8fbee7ec6eba8
SHA1f8dd0d86b07bdaffb8078ee4670a9e0b7a0f3fd0
SHA2568dfd2cb8f3f5dfe585de81ad2329c617d81ac7df2222fcf57bf9108e1bebb54e
SHA512fc22e806ba701f69da090294c6905c8c24239ec147412a3cbb1661765210afc3dde0e5cd781bea38b5e7c70c283da4afb574758eed947692c8f472de5424144c