Analysis
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max time kernel
151s -
max time network
58s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
03-12-2022 19:58
Static task
static1
Behavioral task
behavioral1
Sample
40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe
Resource
win7-20220812-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
2 signatures
150 seconds
General
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Target
40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe
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Size
293KB
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MD5
1d0ca469e3bf55346acb5eb833788950
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SHA1
44d6bcc7c1d88267697a3bae0e2f70f99726ee57
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SHA256
40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6
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SHA512
0500e6a08c0636a8befe1919cb36f90b307b9fa46753135c9ba3430e0bda1fa0191e3b1671cf06c6b104b77fe6c262a007a0f57dd741ac244d1537efdb4aa7ff
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SSDEEP
3072:fj5DsbrQz7kYCe9wKc8cqTnYGgvQgjjZSEvpfO9b0p/I3BbBkh4:R6Q3qL8tdQjZbhGB9
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" 40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" gbcat.exe -
Executes dropped EXE 1 IoCs
pid Process 1916 gbcat.exe -
Loads dropped DLL 2 IoCs
pid Process 1908 40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe 1908 40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /d" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /y" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /m" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /w" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /i" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /t" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /a" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /x" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /l" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /z" 40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /v" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /o" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /z" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /h" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /s" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /e" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /q" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /g" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /b" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /j" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /c" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /u" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /r" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /p" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /n" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /k" gbcat.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gbcat = "C:\\Users\\Admin\\gbcat.exe /f" gbcat.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum gbcat.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 gbcat.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 1908 40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe 1916 gbcat.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1908 40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe 1916 gbcat.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1908 wrote to memory of 1916 1908 40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe 28 PID 1908 wrote to memory of 1916 1908 40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe 28 PID 1908 wrote to memory of 1916 1908 40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe 28 PID 1908 wrote to memory of 1916 1908 40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe"C:\Users\Admin\AppData\Local\Temp\40be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1908 -
C:\Users\Admin\gbcat.exe"C:\Users\Admin\gbcat.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1916
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
293KB
MD51d0ca469e3bf55346acb5eb833788950
SHA144d6bcc7c1d88267697a3bae0e2f70f99726ee57
SHA25640be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6
SHA5120500e6a08c0636a8befe1919cb36f90b307b9fa46753135c9ba3430e0bda1fa0191e3b1671cf06c6b104b77fe6c262a007a0f57dd741ac244d1537efdb4aa7ff
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Filesize
293KB
MD51d0ca469e3bf55346acb5eb833788950
SHA144d6bcc7c1d88267697a3bae0e2f70f99726ee57
SHA25640be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6
SHA5120500e6a08c0636a8befe1919cb36f90b307b9fa46753135c9ba3430e0bda1fa0191e3b1671cf06c6b104b77fe6c262a007a0f57dd741ac244d1537efdb4aa7ff
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Filesize
293KB
MD51d0ca469e3bf55346acb5eb833788950
SHA144d6bcc7c1d88267697a3bae0e2f70f99726ee57
SHA25640be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6
SHA5120500e6a08c0636a8befe1919cb36f90b307b9fa46753135c9ba3430e0bda1fa0191e3b1671cf06c6b104b77fe6c262a007a0f57dd741ac244d1537efdb4aa7ff
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Filesize
293KB
MD51d0ca469e3bf55346acb5eb833788950
SHA144d6bcc7c1d88267697a3bae0e2f70f99726ee57
SHA25640be297e8a3896b2d2ce8ec150f77f4fdb7d9b3bf33a2870ab29e5396911c1b6
SHA5120500e6a08c0636a8befe1919cb36f90b307b9fa46753135c9ba3430e0bda1fa0191e3b1671cf06c6b104b77fe6c262a007a0f57dd741ac244d1537efdb4aa7ff