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Analysis
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max time kernel
151s -
max time network
88s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
30/10/2022, 17:40
Static task
static1
Behavioral task
behavioral1
Sample
2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.exe
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Size
172KB
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MD5
8249adc0d680875a349f1eb51bfc9cf7
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SHA1
900777ef9a6f0a9c6d01514d103f1873157e83ab
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SHA256
2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a
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SHA512
0fd9a1afc30dd4883f26e5dc4d66dfd9807773ecd738a2175ae4183b5fe21ac94f2a5beb7d410b94b8f3ca7f8be634f932681f19f39d46387e747ad42e5c5baf
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SSDEEP
3072:eyAblB5QqiwcCA0laletdpVinzswyAQjh/gSF3Ef3ykQozVVC4:UIqtc30l+2yzswyAQjh/gSF3Ef3ykQod
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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yuuzo.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.exe -
Executes dropped EXE 1 IoCs
pid Process 588 yuuzo.exe -
Loads dropped DLL 2 IoCs
pid Process 620 2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.exe 620 2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.exe -
Adds Run key to start application 2 TTPs 53 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /y" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /k" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /Y" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /M" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /N" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /O" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /u" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /m" 2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /v" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /t" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /Z" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /b" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /H" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /j" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /w" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /U" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /V" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /a" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /C" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /B" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /W" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /G" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /L" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /x" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /l" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /Q" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /o" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /g" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /T" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /h" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /r" yuuzo.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /s" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /X" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /R" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /p" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /D" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /e" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /c" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /A" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /E" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /d" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /P" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /K" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /I" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /f" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /F" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /q" yuuzo.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /i" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /z" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /S" yuuzo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuuzo = "C:\\Users\\Admin\\yuuzo.exe /J" yuuzo.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 620 2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe 588 yuuzo.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 620 2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.exe 588 yuuzo.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 620 wrote to memory of 588 620 2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.exe 27 PID 620 wrote to memory of 588 620 2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.exe 27 PID 620 wrote to memory of 588 620 2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.exe 27 PID 620 wrote to memory of 588 620 2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.exe"C:\Users\Admin\AppData\Local\Temp\2b867cd2b513dfc337407eae75c3ff46c5d7ab221b841f2e4cf2fa788715a30a.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:620 -
C:\Users\Admin\yuuzo.exe"C:\Users\Admin\yuuzo.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:588
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
172KB
MD5cb171ddc69a90405ce205d0874b0f67a
SHA1ea79f4fea164b8a73a14a0ea37bad4e55eb69759
SHA2561a538b81910c9a7530c10b605b18aa93594d5e3cebd49a53ad48f45efd16c6f0
SHA5129550aba226980cfe54dadbaec285fd7eb638dd6994fea18d2f7079f16914097b7349c568f72f995bd0439213af032833a46166ec2d43d88ef57d1b6297dbca3a
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Filesize
172KB
MD5cb171ddc69a90405ce205d0874b0f67a
SHA1ea79f4fea164b8a73a14a0ea37bad4e55eb69759
SHA2561a538b81910c9a7530c10b605b18aa93594d5e3cebd49a53ad48f45efd16c6f0
SHA5129550aba226980cfe54dadbaec285fd7eb638dd6994fea18d2f7079f16914097b7349c568f72f995bd0439213af032833a46166ec2d43d88ef57d1b6297dbca3a
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Filesize
172KB
MD5cb171ddc69a90405ce205d0874b0f67a
SHA1ea79f4fea164b8a73a14a0ea37bad4e55eb69759
SHA2561a538b81910c9a7530c10b605b18aa93594d5e3cebd49a53ad48f45efd16c6f0
SHA5129550aba226980cfe54dadbaec285fd7eb638dd6994fea18d2f7079f16914097b7349c568f72f995bd0439213af032833a46166ec2d43d88ef57d1b6297dbca3a
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Filesize
172KB
MD5cb171ddc69a90405ce205d0874b0f67a
SHA1ea79f4fea164b8a73a14a0ea37bad4e55eb69759
SHA2561a538b81910c9a7530c10b605b18aa93594d5e3cebd49a53ad48f45efd16c6f0
SHA5129550aba226980cfe54dadbaec285fd7eb638dd6994fea18d2f7079f16914097b7349c568f72f995bd0439213af032833a46166ec2d43d88ef57d1b6297dbca3a