Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
04-06-2024 01:20
Static task
static1
Behavioral task
behavioral1
Sample
43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe
Resource
win7-20240508-en
General
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Target
43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe
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Size
779KB
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MD5
b8c16305e86cd0c9e66bf9a26bed97c7
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SHA1
451b83ee2758b91aabf7f0367241d636b6c1d6f5
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SHA256
43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de
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SHA512
b1d9548fc78fb8626d7e081d2ded7d86743e4f9136b3314315a5afa096e33858d43d7b9d775a623f7733809b0f06b748033518e9c3ac14a190aff5e71ac6ae9b
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SSDEEP
24576:uky1kNvBHoB+vinRETPD1qL63JnPPX8YpYFLxwuXt:uV1klBHoEURETPD1qL63fYN
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
Signatures
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Detect Vidar Stealer 6 IoCs
Processes:
resource yara_rule behavioral2/memory/3016-6-0x0000000000400000-0x00000000004C3000-memory.dmp family_vidar_v7 behavioral2/memory/2244-9-0x0000000000B60000-0x0000000000DA6000-memory.dmp family_vidar_v7 behavioral2/memory/3016-11-0x0000000000400000-0x00000000004C3000-memory.dmp family_vidar_v7 behavioral2/memory/2244-10-0x0000000000B60000-0x0000000000DA6000-memory.dmp family_vidar_v7 behavioral2/memory/2244-14-0x0000000000B60000-0x0000000000DA6000-memory.dmp family_vidar_v7 behavioral2/memory/2244-15-0x0000000000B60000-0x0000000000DA6000-memory.dmp family_vidar_v7 -
Detects Windows executables referencing non-Windows User-Agents 6 IoCs
Processes:
resource yara_rule behavioral2/memory/3016-6-0x0000000000400000-0x00000000004C3000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/2244-9-0x0000000000B60000-0x0000000000DA6000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/3016-11-0x0000000000400000-0x00000000004C3000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/2244-10-0x0000000000B60000-0x0000000000DA6000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/2244-14-0x0000000000B60000-0x0000000000DA6000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/2244-15-0x0000000000B60000-0x0000000000DA6000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 6 IoCs
Processes:
resource yara_rule behavioral2/memory/3016-6-0x0000000000400000-0x00000000004C3000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/2244-9-0x0000000000B60000-0x0000000000DA6000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/3016-11-0x0000000000400000-0x00000000004C3000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/2244-10-0x0000000000B60000-0x0000000000DA6000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/2244-14-0x0000000000B60000-0x0000000000DA6000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral2/memory/2244-15-0x0000000000B60000-0x0000000000DA6000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL -
Detects executables containing potential Windows Defender anti-emulation checks 6 IoCs
Processes:
resource yara_rule behavioral2/memory/3016-6-0x0000000000400000-0x00000000004C3000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/2244-9-0x0000000000B60000-0x0000000000DA6000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/3016-11-0x0000000000400000-0x00000000004C3000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/2244-10-0x0000000000B60000-0x0000000000DA6000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/2244-14-0x0000000000B60000-0x0000000000DA6000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation behavioral2/memory/2244-15-0x0000000000B60000-0x0000000000DA6000-memory.dmp INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SmokerLtd = "C:\\Users\\Admin\\Documents\\CherrishNu\\Toopan.exe" 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe -
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 NtCreateThreadExHideFromDebugger 1 IoCs
Processes:
43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exepid process 3016 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3424 timeout.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exepid process 2244 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe 2244 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.execmd.exedescription pid process target process PID 3016 wrote to memory of 2244 3016 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe PID 3016 wrote to memory of 2244 3016 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe PID 3016 wrote to memory of 2244 3016 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe PID 3016 wrote to memory of 2244 3016 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe PID 3016 wrote to memory of 2244 3016 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe PID 3016 wrote to memory of 2244 3016 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe PID 2244 wrote to memory of 4760 2244 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe cmd.exe PID 2244 wrote to memory of 4760 2244 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe cmd.exe PID 2244 wrote to memory of 4760 2244 43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe cmd.exe PID 4760 wrote to memory of 3424 4760 cmd.exe timeout.exe PID 4760 wrote to memory of 3424 4760 cmd.exe timeout.exe PID 4760 wrote to memory of 3424 4760 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe"C:\Users\Admin\AppData\Local\Temp\43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe"1⤵
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:3016 -
C:\Users\Admin\AppData\Local\Temp\43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe"C:\Users\Admin\AppData\Local\Temp\43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe"2⤵
- Checks computer location settings
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2244 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\43ab8d538551ee2d920b1780bced4a7e97a3e9cf8d6f47b6634219120c1ca3de.exe" & rd /s /q "C:\ProgramData\ECGDHDHJEBGH" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:4760 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:3424