Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
27-05-2024 04:35
Static task
static1
Behavioral task
behavioral1
Sample
6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50.exe
Resource
win10v2004-20240426-en
General
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Target
6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50.exe
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Size
2.0MB
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MD5
56de90f188380e01d25bcb6706daa44a
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SHA1
4475bd064fde06324c143c28497f2122d1e58be2
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SHA256
6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50
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SHA512
b36d881c7e1ce4de71547c1afeeba062db19776e71e1b9fac1979b6752f8058962dfb85da066398518c3e5c0fe551eed0c49845c6e08ca09d5606fcbad77f3e1
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SSDEEP
49152:OePpQExJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQExtIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral1/memory/1708-1-0x0000000003FF0000-0x0000000004139000-memory.dmp family_vidar_v7 behavioral1/memory/804-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/804-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/804-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/804-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/804-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/804-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/804-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat26E1.tmppid process 804 kat26E1.tmp -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50.exedescription pid process target process PID 1708 set thread context of 804 1708 6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50.exe kat26E1.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat26E1.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat26E1.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat26E1.tmppid process 804 kat26E1.tmp 804 kat26E1.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50.exedescription pid process target process PID 1708 wrote to memory of 804 1708 6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50.exe kat26E1.tmp PID 1708 wrote to memory of 804 1708 6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50.exe kat26E1.tmp PID 1708 wrote to memory of 804 1708 6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50.exe kat26E1.tmp PID 1708 wrote to memory of 804 1708 6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50.exe kat26E1.tmp PID 1708 wrote to memory of 804 1708 6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50.exe kat26E1.tmp PID 1708 wrote to memory of 804 1708 6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50.exe kat26E1.tmp PID 1708 wrote to memory of 804 1708 6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50.exe kat26E1.tmp PID 1708 wrote to memory of 804 1708 6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50.exe kat26E1.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50.exe"C:\Users\Admin\AppData\Local\Temp\6e87490b8d107f8190e4c5abf4e9be4e18f3f9dbe53fe5abea268b77e6f66d50.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat26E1.tmpC:\Users\Admin\AppData\Local\Temp\kat26E1.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat26E1.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/804-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/804-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/804-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/804-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/804-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/804-18-0x000000001B740000-0x000000001B99F000-memory.dmpFilesize
2.4MB
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memory/804-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/804-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1708-0-0x00000000006F0000-0x00000000006F1000-memory.dmpFilesize
4KB
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memory/1708-1-0x0000000003FF0000-0x0000000004139000-memory.dmpFilesize
1.3MB
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memory/1708-9-0x0000000000400000-0x0000000000612000-memory.dmpFilesize
2.1MB