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Analysis
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max time kernel
153s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
06/12/2022, 00:01
Static task
static1
Behavioral task
behavioral1
Sample
90195488bf020d45a90b61341611038f40158997226a9202e53cb451238a22c9.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
90195488bf020d45a90b61341611038f40158997226a9202e53cb451238a22c9.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
90195488bf020d45a90b61341611038f40158997226a9202e53cb451238a22c9.exe
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Size
193KB
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MD5
aa2facd23c967594a5cef3e9aed15304
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SHA1
0d53426bace559039557611e149fb8e69b7bab71
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SHA256
90195488bf020d45a90b61341611038f40158997226a9202e53cb451238a22c9
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SHA512
b163aa231cd6d34c480e1ccd9b8f7b4c7274535f20697c429b3f1a68c6a2bbb819482ebfd8eb32fd5ab0adec097708a27bd13008c36815e8a57924cccef0d705
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SSDEEP
6144:Qolkmb5rrFOt4ayMvz58xJ4Fcj8oQVD+/:I1ttuaFccV
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" buowu.exe -
Executes dropped EXE 1 IoCs
pid Process 4864 buowu.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation 90195488bf020d45a90b61341611038f40158997226a9202e53cb451238a22c9.exe -
Adds Run key to start application 2 TTPs 53 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /H" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /Y" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /t" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /N" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /d" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /n" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /m" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /c" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /r" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /E" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /a" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /s" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /g" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /o" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /z" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /R" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /e" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /O" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /J" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /Q" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /W" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /T" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /V" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /F" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /B" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /X" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /f" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /i" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /l" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /G" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /p" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /x" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /U" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /S" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /P" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /D" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /Z" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /j" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /K" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /M" buowu.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /b" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /k" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /L" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /q" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /w" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /v" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /y" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /u" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /C" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /h" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /I" buowu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buowu = "C:\\Users\\Admin\\buowu.exe /A" buowu.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 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe 4864 buowu.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4176 90195488bf020d45a90b61341611038f40158997226a9202e53cb451238a22c9.exe 4864 buowu.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4176 wrote to memory of 4864 4176 90195488bf020d45a90b61341611038f40158997226a9202e53cb451238a22c9.exe 78 PID 4176 wrote to memory of 4864 4176 90195488bf020d45a90b61341611038f40158997226a9202e53cb451238a22c9.exe 78 PID 4176 wrote to memory of 4864 4176 90195488bf020d45a90b61341611038f40158997226a9202e53cb451238a22c9.exe 78
Processes
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C:\Users\Admin\AppData\Local\Temp\90195488bf020d45a90b61341611038f40158997226a9202e53cb451238a22c9.exe"C:\Users\Admin\AppData\Local\Temp\90195488bf020d45a90b61341611038f40158997226a9202e53cb451238a22c9.exe"1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4176 -
C:\Users\Admin\buowu.exe"C:\Users\Admin\buowu.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:4864
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
193KB
MD5762741e3569a7fb8b39aa2219cb86aac
SHA1e977d98dc10df16c1d247c23b27a1f1178e08849
SHA256648dc57a83e5919c598567e18e0145f61e4fc5f8320ca4227fe42c4ad39e1658
SHA512dd2c7766adf4c6616c1a9a0c01790a7aab82d51d038f2c83a461c82709cf18a8f36122554e0be3c9e716024ee0de3dbde4292818c2c0ee8f0de1bfa6774d524d
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Filesize
193KB
MD5762741e3569a7fb8b39aa2219cb86aac
SHA1e977d98dc10df16c1d247c23b27a1f1178e08849
SHA256648dc57a83e5919c598567e18e0145f61e4fc5f8320ca4227fe42c4ad39e1658
SHA512dd2c7766adf4c6616c1a9a0c01790a7aab82d51d038f2c83a461c82709cf18a8f36122554e0be3c9e716024ee0de3dbde4292818c2c0ee8f0de1bfa6774d524d