Analysis
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max time kernel
154s -
max time network
194s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
24-11-2022 00:25
Static task
static1
Behavioral task
behavioral1
Sample
db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe
Resource
win10v2004-20220812-en
General
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Target
db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe
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Size
180KB
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MD5
001dac0390a4ec1b0e7438aef424df40
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SHA1
92aa25d5bb949f93fb85a5373c31018c960c4e69
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SHA256
db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49
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SHA512
8352710a68bc39cf3147638feb85169acf110ec537feb11c2f7356678b21f3868e33d1ac384791ee73a84dcc55a0596381bdda313e40b7f7fee290fda03c0806
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SSDEEP
3072:YNcoen92EVB9/mHVQ/934fkr5CuT8G+ufJyKu8soP:YNmn92EVre1Q/t4fi5CuT8G+ub
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
Processes:
db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exeyuecouy.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yuecouy.exe -
Executes dropped EXE 1 IoCs
Processes:
yuecouy.exepid process 1056 yuecouy.exe -
Loads dropped DLL 2 IoCs
Processes:
db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exepid process 2040 db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe 2040 db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe -
Adds Run key to start application 2 TTPs 58 IoCs
Processes:
yuecouy.exedb01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /e" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /k" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /p" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /s" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /y" db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /s" db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /g" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /r" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /b" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /t" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /w" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /h" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /i" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /f" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /a" yuecouy.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /e" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /u" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /d" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /j" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /o" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /m" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /k" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /l" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /t" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /n" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /g" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /c" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /s" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /j" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /v" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /h" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /r" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /p" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /y" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /v" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /q" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /z" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /a" yuecouy.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /c" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /m" yuecouy.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\ db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /l" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /f" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /x" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /o" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /y" yuecouy.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /x" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /i" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /b" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /w" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /z" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /d" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /u" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /q" yuecouy.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yuecouy = "C:\\Users\\Admin\\yuecouy.exe /n" yuecouy.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
Processes:
db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exeyuecouy.exepid process 2040 db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe 1056 yuecouy.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exeyuecouy.exepid process 2040 db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe 1056 yuecouy.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exedescription pid process target process PID 2040 wrote to memory of 1056 2040 db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe yuecouy.exe PID 2040 wrote to memory of 1056 2040 db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe yuecouy.exe PID 2040 wrote to memory of 1056 2040 db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe yuecouy.exe PID 2040 wrote to memory of 1056 2040 db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe yuecouy.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.exe"C:\Users\Admin\AppData\Local\Temp\db01b04e3e4505f3bc5c70d77f1c2e4bce2a1c0390f8edecad0f843cff2a8d49.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:2040 -
C:\Users\Admin\yuecouy.exe"C:\Users\Admin\yuecouy.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:1056
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
180KB
MD56789bf6d5ff60c978f01ade246e05a4f
SHA1e85acfe982ad492839ef7feb4f03834cbf25b95d
SHA256ded1faa74952d827d0d3d1518f746d360d5918c7777bf1f3c64239121fb8b239
SHA51257404309134d8ff50f556bbda6f31edebdca3f5dfc0d6af629ed70bcba4667d17e7bfe28f46e1690035c69512adbafe5d9e183f104bbe56ccd4836417bef013e
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Filesize
180KB
MD56789bf6d5ff60c978f01ade246e05a4f
SHA1e85acfe982ad492839ef7feb4f03834cbf25b95d
SHA256ded1faa74952d827d0d3d1518f746d360d5918c7777bf1f3c64239121fb8b239
SHA51257404309134d8ff50f556bbda6f31edebdca3f5dfc0d6af629ed70bcba4667d17e7bfe28f46e1690035c69512adbafe5d9e183f104bbe56ccd4836417bef013e
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Filesize
180KB
MD56789bf6d5ff60c978f01ade246e05a4f
SHA1e85acfe982ad492839ef7feb4f03834cbf25b95d
SHA256ded1faa74952d827d0d3d1518f746d360d5918c7777bf1f3c64239121fb8b239
SHA51257404309134d8ff50f556bbda6f31edebdca3f5dfc0d6af629ed70bcba4667d17e7bfe28f46e1690035c69512adbafe5d9e183f104bbe56ccd4836417bef013e
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Filesize
180KB
MD56789bf6d5ff60c978f01ade246e05a4f
SHA1e85acfe982ad492839ef7feb4f03834cbf25b95d
SHA256ded1faa74952d827d0d3d1518f746d360d5918c7777bf1f3c64239121fb8b239
SHA51257404309134d8ff50f556bbda6f31edebdca3f5dfc0d6af629ed70bcba4667d17e7bfe28f46e1690035c69512adbafe5d9e183f104bbe56ccd4836417bef013e