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Analysis
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max time kernel
186s -
max time network
137s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
02/12/2022, 00:45
Static task
static1
Behavioral task
behavioral1
Sample
b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe
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Size
132KB
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MD5
76f5395af0f774bab318e573c4e293e4
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SHA1
b47742669004661ed5dc559ef68cb19fcc978a74
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SHA256
b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375
-
SHA512
01edb57dab8680e16aa123568724d325f16d4d7d4b7ecee3919c561a1ceece9a9f07bed69a63abdf7d9083586e71426f6dd05364a810820545ffac01c96b130a
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SSDEEP
1536:uym4Q/T5/H6rM2qEbBkIvI4DyQDIws/HmmYbRdfuL0wo7JaS1:vQ/TpH63qEbBkn4e2s/HmlTfdwQL
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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" cuueji.exe -
Executes dropped EXE 1 IoCs
pid Process 332 cuueji.exe -
Loads dropped DLL 2 IoCs
pid Process 1688 b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe 1688 b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe -
Adds Run key to start application 2 TTPs 50 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /B" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /p" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /N" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /u" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /n" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /E" cuueji.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\ b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /J" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /U" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /y" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /x" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /V" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /I" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /K" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /W" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /T" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /P" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /c" b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /h" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /S" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /Q" cuueji.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\ cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /l" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /j" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /c" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /b" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /D" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /m" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /f" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /q" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /A" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /C" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /r" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /t" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /Y" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /O" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /Z" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /v" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /H" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /z" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /M" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /o" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /d" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /e" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /w" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /k" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /X" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /G" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /a" cuueji.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\cuueji = "C:\\Users\\Admin\\cuueji.exe /i" cuueji.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 1688 b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe 332 cuueji.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1688 b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe 332 cuueji.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1688 wrote to memory of 332 1688 b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe 28 PID 1688 wrote to memory of 332 1688 b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe 28 PID 1688 wrote to memory of 332 1688 b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe 28 PID 1688 wrote to memory of 332 1688 b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.exe"C:\Users\Admin\AppData\Local\Temp\b613fa52042bc462d46517c389d8fb262423d1e47868711119c779ee5f4ee375.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:1688 -
C:\Users\Admin\cuueji.exe"C:\Users\Admin\cuueji.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:332
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
132KB
MD5c58936251e519b1975b274c16d0b1964
SHA1bbe79312866ca7075a2633cc51aab1b0f5145626
SHA256dc1223376d9858cd1a22a01f0cf0cf71fef90d04fd2e6a327acafe3acdceccd8
SHA51244729a0f314d915de16357af97f47f6c772be677255f2c050a650f4e0ae6626be92c517d55bea85f738131d2d63cd7ade0dbdad070d14531558663a8618234da
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Filesize
132KB
MD5c58936251e519b1975b274c16d0b1964
SHA1bbe79312866ca7075a2633cc51aab1b0f5145626
SHA256dc1223376d9858cd1a22a01f0cf0cf71fef90d04fd2e6a327acafe3acdceccd8
SHA51244729a0f314d915de16357af97f47f6c772be677255f2c050a650f4e0ae6626be92c517d55bea85f738131d2d63cd7ade0dbdad070d14531558663a8618234da
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Filesize
132KB
MD5c58936251e519b1975b274c16d0b1964
SHA1bbe79312866ca7075a2633cc51aab1b0f5145626
SHA256dc1223376d9858cd1a22a01f0cf0cf71fef90d04fd2e6a327acafe3acdceccd8
SHA51244729a0f314d915de16357af97f47f6c772be677255f2c050a650f4e0ae6626be92c517d55bea85f738131d2d63cd7ade0dbdad070d14531558663a8618234da
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Filesize
132KB
MD5c58936251e519b1975b274c16d0b1964
SHA1bbe79312866ca7075a2633cc51aab1b0f5145626
SHA256dc1223376d9858cd1a22a01f0cf0cf71fef90d04fd2e6a327acafe3acdceccd8
SHA51244729a0f314d915de16357af97f47f6c772be677255f2c050a650f4e0ae6626be92c517d55bea85f738131d2d63cd7ade0dbdad070d14531558663a8618234da