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Analysis
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max time kernel
152s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
03/10/2022, 06:34
Static task
static1
Behavioral task
behavioral1
Sample
6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.exe
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Size
80KB
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MD5
627dd49873ed6be09a82af987a00cbb0
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SHA1
bbcf3805374046a6d14c62e1b27056ab950a02f9
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SHA256
6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e
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SHA512
893336c000dc7ae0e0d35dc91aea68b901cdf5d06c7d21ab728e0e6017855bac6397c22a47c68f6d4bd0c7e8713661a065df9f7ca4afbcf6df4f305ed865cfb2
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SSDEEP
1536:TW7wLCvKGlTGQxguIxZTATocTzFJ0T72Vpkc:aoCvrKxZ8BTzFJ0T72wc
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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" vuifob.exe -
Executes dropped EXE 1 IoCs
pid Process 1636 vuifob.exe -
Loads dropped DLL 2 IoCs
pid Process 1988 6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.exe 1988 6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /c" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /s" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /l" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /p" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /q" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /a" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /k" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /m" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /i" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /e" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /x" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /w" vuifob.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /d" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /b" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /h" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /u" vuifob.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /v" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /g" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /y" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /t" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /f" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /i" 6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /n" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /o" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /j" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /r" vuifob.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\vuifob = "C:\\Users\\Admin\\vuifob.exe /z" vuifob.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 1988 6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe 1636 vuifob.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1988 6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.exe 1636 vuifob.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1988 wrote to memory of 1636 1988 6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.exe 27 PID 1988 wrote to memory of 1636 1988 6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.exe 27 PID 1988 wrote to memory of 1636 1988 6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.exe 27 PID 1988 wrote to memory of 1636 1988 6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.exe"C:\Users\Admin\AppData\Local\Temp\6a07a50a8246f502cc6130118fff6d79904e0bf4da52908cf24163e438c9133e.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:1988 -
C:\Users\Admin\vuifob.exe"C:\Users\Admin\vuifob.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:1636
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
80KB
MD510d05f59d97189097632518718c3060a
SHA1adc8b1c777a50087074b49e6f1d9ffef1b03df92
SHA256f68d78ec6bbead796e0f80f299112ec5e2a4a4de419cc2d3832b5f9b15acefec
SHA5127dc1fd0d5448d559b030a8a14ff01fb3aef6451e8c52781b0aa65674543761e3d79669d400812a376ef9a6da8c35b2f882842b969589005079eb7d51a49bda43
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Filesize
80KB
MD510d05f59d97189097632518718c3060a
SHA1adc8b1c777a50087074b49e6f1d9ffef1b03df92
SHA256f68d78ec6bbead796e0f80f299112ec5e2a4a4de419cc2d3832b5f9b15acefec
SHA5127dc1fd0d5448d559b030a8a14ff01fb3aef6451e8c52781b0aa65674543761e3d79669d400812a376ef9a6da8c35b2f882842b969589005079eb7d51a49bda43
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Filesize
80KB
MD510d05f59d97189097632518718c3060a
SHA1adc8b1c777a50087074b49e6f1d9ffef1b03df92
SHA256f68d78ec6bbead796e0f80f299112ec5e2a4a4de419cc2d3832b5f9b15acefec
SHA5127dc1fd0d5448d559b030a8a14ff01fb3aef6451e8c52781b0aa65674543761e3d79669d400812a376ef9a6da8c35b2f882842b969589005079eb7d51a49bda43
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Filesize
80KB
MD510d05f59d97189097632518718c3060a
SHA1adc8b1c777a50087074b49e6f1d9ffef1b03df92
SHA256f68d78ec6bbead796e0f80f299112ec5e2a4a4de419cc2d3832b5f9b15acefec
SHA5127dc1fd0d5448d559b030a8a14ff01fb3aef6451e8c52781b0aa65674543761e3d79669d400812a376ef9a6da8c35b2f882842b969589005079eb7d51a49bda43