Analysis
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max time kernel
157s -
max time network
89s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
29/11/2022, 03:43
Static task
static1
Behavioral task
behavioral1
Sample
6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.exe
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Size
228KB
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MD5
99760b1b53b9af02d93a783d3622d3ee
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SHA1
2c95ad48f722677e1786741b91b56c4f5b5d06d4
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SHA256
6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb
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SHA512
e4e025daf8bbb580f5b846d6009aeba304a8b116ce07dad719e411ee3cc0b0a6dbcb8aeed0123a61faf5504f8b2daae158333c63f37687602f790a6145739cf0
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SSDEEP
6144:hTtFwzWQx2+OMcppIRW30d+h8wZ2Uf/T11cradKtvr1K/fObT/bGipKgJJeZ4cAe:bFwtOMcppIRW3M+hwUf/Z1craduvr1KZ
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" 6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" rxbuov.exe -
Executes dropped EXE 1 IoCs
pid Process 2028 rxbuov.exe -
Loads dropped DLL 2 IoCs
pid Process 1304 6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.exe 1304 6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.exe -
Adds Run key to start application 2 TTPs 52 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /b" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /e" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /t" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /Q" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /V" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /s" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /l" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /C" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /v" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /p" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /K" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /n" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /A" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /k" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /z" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /d" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /y" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /T" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /W" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /i" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /U" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /s" 6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /x" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /w" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /R" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /j" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /S" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /L" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /Y" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /g" rxbuov.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /D" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /Z" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /H" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /G" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /u" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /P" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /m" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /q" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /F" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /E" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /o" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /c" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /f" rxbuov.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /J" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /N" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /r" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /M" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /X" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /h" rxbuov.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rxbuov = "C:\\Users\\Admin\\rxbuov.exe /O" rxbuov.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 1304 6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe 2028 rxbuov.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1304 6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.exe 2028 rxbuov.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1304 wrote to memory of 2028 1304 6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.exe 27 PID 1304 wrote to memory of 2028 1304 6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.exe 27 PID 1304 wrote to memory of 2028 1304 6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.exe 27 PID 1304 wrote to memory of 2028 1304 6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.exe"C:\Users\Admin\AppData\Local\Temp\6a517262c1b76db1b920a3cd711e940b60c12029063e1257666b4a68ce99fefb.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:1304 -
C:\Users\Admin\rxbuov.exe"C:\Users\Admin\rxbuov.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:2028
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
228KB
MD5d8176e14dcda8d125c3f8407ef49562b
SHA16d87e5d59d59f158ed2cad0929111e5a224d6c4e
SHA2563c6831a42ee797728f7b75813e293b3da49b5dd6f8cc72645cf2278085c69f9d
SHA512ec75ec5548765aa5163308337c5ddcaa3621aa18726704daa495237ba1fff33a0ad6e18259ab7ef7b339e116db09cf2a93fa4efd4fe3bbf042681b3921e2bc93
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Filesize
228KB
MD5d8176e14dcda8d125c3f8407ef49562b
SHA16d87e5d59d59f158ed2cad0929111e5a224d6c4e
SHA2563c6831a42ee797728f7b75813e293b3da49b5dd6f8cc72645cf2278085c69f9d
SHA512ec75ec5548765aa5163308337c5ddcaa3621aa18726704daa495237ba1fff33a0ad6e18259ab7ef7b339e116db09cf2a93fa4efd4fe3bbf042681b3921e2bc93
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Filesize
228KB
MD5d8176e14dcda8d125c3f8407ef49562b
SHA16d87e5d59d59f158ed2cad0929111e5a224d6c4e
SHA2563c6831a42ee797728f7b75813e293b3da49b5dd6f8cc72645cf2278085c69f9d
SHA512ec75ec5548765aa5163308337c5ddcaa3621aa18726704daa495237ba1fff33a0ad6e18259ab7ef7b339e116db09cf2a93fa4efd4fe3bbf042681b3921e2bc93
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Filesize
228KB
MD5d8176e14dcda8d125c3f8407ef49562b
SHA16d87e5d59d59f158ed2cad0929111e5a224d6c4e
SHA2563c6831a42ee797728f7b75813e293b3da49b5dd6f8cc72645cf2278085c69f9d
SHA512ec75ec5548765aa5163308337c5ddcaa3621aa18726704daa495237ba1fff33a0ad6e18259ab7ef7b339e116db09cf2a93fa4efd4fe3bbf042681b3921e2bc93