Analysis
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max time kernel
151s -
max time network
166s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
01/12/2022, 23:38
Static task
static1
Behavioral task
behavioral1
Sample
84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe
Resource
win7-20220812-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe
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Size
172KB
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MD5
ffac7ebc6f1eb622106d9f95f0265d39
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SHA1
f9e476bd8fc1a44eb6d2eccec055b864ebd98f64
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SHA256
84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8
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SHA512
c2fb892970286421214b85cc0229bc8a06b21ce2d2d93e5cca897848fa446755a9f88bd4cc03131143293fbb69624cc2a60e2cee734a54b81132024aa0830394
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SSDEEP
3072:dChDLsNgqmF3muDOqkVfbX936NDoZq4rvKtGTV:SDLsNgrF3muDOqkpbX937Zq4ryY
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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yoaijub.exe -
Executes dropped EXE 1 IoCs
pid Process 1556 yoaijub.exe -
Loads dropped DLL 2 IoCs
pid Process 1008 84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe 1008 84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe -
Adds Run key to start application 2 TTPs 58 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /r" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /m" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /t" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /s" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /x" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /j" yoaijub.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ 84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /u" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /w" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /o" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /d" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /i" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /e" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /z" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /d" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /n" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /a" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /h" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /b" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /v" 84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /m" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /k" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /r" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /g" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /w" yoaijub.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /q" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /c" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /n" 84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /z" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /o" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /a" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /n" yoaijub.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /p" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /c" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /e" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /q" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /f" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /p" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /u" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /y" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /l" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /i" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /j" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /b" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /s" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /h" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /x" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /l" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /v" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /g" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /f" yoaijub.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /v" yoaijub.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /t" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /y" yoaijub.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yoaijub = "C:\\Users\\Admin\\yoaijub.exe /k" yoaijub.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 1008 84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe 1556 yoaijub.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1556 yoaijub.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1008 84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe 1556 yoaijub.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1008 wrote to memory of 1556 1008 84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe 28 PID 1008 wrote to memory of 1556 1008 84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe 28 PID 1008 wrote to memory of 1556 1008 84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe 28 PID 1008 wrote to memory of 1556 1008 84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.exe"C:\Users\Admin\AppData\Local\Temp\84cf6b02d23f073e7d868198d5ce96486f10b303c2f6c753b25075b311a7e7d8.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:1008 -
C:\Users\Admin\yoaijub.exe"C:\Users\Admin\yoaijub.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1556
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
172KB
MD511a23d98f31e37e1722cb507a4c6b994
SHA108bc53f1e7768ba11c7fa8f864a11f63a8436a62
SHA25603674bf601262c59b9d80e9bef14455f7ce7955c1190b111a0bf6689e0a0fbd2
SHA51237652141a906dfa950242be00d181c63fc2ee0340321e5ccb00734496549539facf36061ee7bf282ea1f2d3fcd3c089c5155bc20c0bc9cef732347a4c6268f85
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Filesize
172KB
MD511a23d98f31e37e1722cb507a4c6b994
SHA108bc53f1e7768ba11c7fa8f864a11f63a8436a62
SHA25603674bf601262c59b9d80e9bef14455f7ce7955c1190b111a0bf6689e0a0fbd2
SHA51237652141a906dfa950242be00d181c63fc2ee0340321e5ccb00734496549539facf36061ee7bf282ea1f2d3fcd3c089c5155bc20c0bc9cef732347a4c6268f85
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Filesize
172KB
MD511a23d98f31e37e1722cb507a4c6b994
SHA108bc53f1e7768ba11c7fa8f864a11f63a8436a62
SHA25603674bf601262c59b9d80e9bef14455f7ce7955c1190b111a0bf6689e0a0fbd2
SHA51237652141a906dfa950242be00d181c63fc2ee0340321e5ccb00734496549539facf36061ee7bf282ea1f2d3fcd3c089c5155bc20c0bc9cef732347a4c6268f85
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Filesize
172KB
MD511a23d98f31e37e1722cb507a4c6b994
SHA108bc53f1e7768ba11c7fa8f864a11f63a8436a62
SHA25603674bf601262c59b9d80e9bef14455f7ce7955c1190b111a0bf6689e0a0fbd2
SHA51237652141a906dfa950242be00d181c63fc2ee0340321e5ccb00734496549539facf36061ee7bf282ea1f2d3fcd3c089c5155bc20c0bc9cef732347a4c6268f85