Analysis
-
max time kernel
151s -
max time network
74s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
02/12/2022, 00:06
Static task
static1
Behavioral task
behavioral1
Sample
1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe
Resource
win7-20220812-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
2 signatures
150 seconds
General
-
Target
1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe
-
Size
299KB
-
MD5
1e679c8c8d32493ca5fe30ab75facdb0
-
SHA1
1e9b53f2f823dc918098801c7a7dbbbf4e07e579
-
SHA256
1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc
-
SHA512
8271076269ad74ee5aa56f6fc9f1d00286c8ed8d40114724018e70ebd992f65489b9ca24b5ed6e6e7183d4d9ae2dc90e7c92b38290aa6fa46029002a4ce02d14
-
SSDEEP
3072:VXO42ZK/rUc+WmvohlclLtLjc+F3lywxXLLNjLSYrB5a4TqmOp0pkc9E2aNFf8:4KTUqjclLtf9xXLtfacD/
Score
10/10
Malware Config
Signatures
-
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" 1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" gscex.exe -
Executes dropped EXE 1 IoCs
pid Process 1976 gscex.exe -
Loads dropped DLL 2 IoCs
pid Process 968 1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe 968 1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.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\gscex = "C:\\Users\\Admin\\gscex.exe /k" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /t" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /b" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /q" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /h" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /y" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /v" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /d" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /z" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /i" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /w" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /x" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /c" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /s" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /u" gscex.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /p" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /e" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /y" 1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /a" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /l" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /j" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /o" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /r" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /f" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /g" gscex.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /n" gscex.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gscex = "C:\\Users\\Admin\\gscex.exe /m" gscex.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 value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum gscex.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 gscex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 968 1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe 1976 gscex.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 968 1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe 1976 gscex.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 968 wrote to memory of 1976 968 1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe 27 PID 968 wrote to memory of 1976 968 1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe 27 PID 968 wrote to memory of 1976 968 1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe 27 PID 968 wrote to memory of 1976 968 1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe 27
Processes
-
C:\Users\Admin\AppData\Local\Temp\1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.exe"C:\Users\Admin\AppData\Local\Temp\1b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc.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:968 -
C:\Users\Admin\gscex.exe"C:\Users\Admin\gscex.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:1976
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
299KB
MD51e679c8c8d32493ca5fe30ab75facdb0
SHA11e9b53f2f823dc918098801c7a7dbbbf4e07e579
SHA2561b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc
SHA5128271076269ad74ee5aa56f6fc9f1d00286c8ed8d40114724018e70ebd992f65489b9ca24b5ed6e6e7183d4d9ae2dc90e7c92b38290aa6fa46029002a4ce02d14
-
Filesize
299KB
MD51e679c8c8d32493ca5fe30ab75facdb0
SHA11e9b53f2f823dc918098801c7a7dbbbf4e07e579
SHA2561b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc
SHA5128271076269ad74ee5aa56f6fc9f1d00286c8ed8d40114724018e70ebd992f65489b9ca24b5ed6e6e7183d4d9ae2dc90e7c92b38290aa6fa46029002a4ce02d14
-
Filesize
299KB
MD51e679c8c8d32493ca5fe30ab75facdb0
SHA11e9b53f2f823dc918098801c7a7dbbbf4e07e579
SHA2561b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc
SHA5128271076269ad74ee5aa56f6fc9f1d00286c8ed8d40114724018e70ebd992f65489b9ca24b5ed6e6e7183d4d9ae2dc90e7c92b38290aa6fa46029002a4ce02d14
-
Filesize
299KB
MD51e679c8c8d32493ca5fe30ab75facdb0
SHA11e9b53f2f823dc918098801c7a7dbbbf4e07e579
SHA2561b3d5fef90b907ee0b26aea8b603744f1a3f04544d380b93c377a386592fd6cc
SHA5128271076269ad74ee5aa56f6fc9f1d00286c8ed8d40114724018e70ebd992f65489b9ca24b5ed6e6e7183d4d9ae2dc90e7c92b38290aa6fa46029002a4ce02d14