Analysis
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max time kernel
128s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
09-03-2022 13:48
Static task
static1
Behavioral task
behavioral1
Sample
05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exe
Resource
win7-20220223-en
General
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Target
05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exe
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Size
8.4MB
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MD5
d7d2eeff30cbf9ddbb2a5d38d639f6f3
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SHA1
2a9a6339c6475219b8854bc676f0eaa14e487917
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SHA256
05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829
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SHA512
85ac22619c220cd39e3c32a786c393a0a5f02e33da220d29f9c94046e00a38cc4c70be0a5cfb193025186ffbbf965f6d98b82dada1bfe990b411e436e1138f7b
Malware Config
Signatures
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Taurus Stealer Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/4560-131-0x0000000000F70000-0x00000000021E9000-memory.dmp family_taurus_stealer -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exe -
Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
Processes:
05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Wine 05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exe -
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 NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exepid process 4560 05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3404 timeout.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exepid process 4560 05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exe 4560 05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.execmd.exedescription pid process target process PID 4560 wrote to memory of 4540 4560 05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exe cmd.exe PID 4560 wrote to memory of 4540 4560 05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exe cmd.exe PID 4560 wrote to memory of 4540 4560 05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exe cmd.exe PID 4540 wrote to memory of 3404 4540 cmd.exe timeout.exe PID 4540 wrote to memory of 3404 4540 cmd.exe timeout.exe PID 4540 wrote to memory of 3404 4540 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exe"C:\Users\Admin\AppData\Local\Temp\05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exe"1⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4560 -
C:\Windows\SysWOW64\cmd.exe/c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\05ff590ae87979f8182c32f99f0cc19eb4fe5429ad2d8b8ff8138a425ee9c829.exe2⤵
- Suspicious use of WriteProcessMemory
PID:4540 -
C:\Windows\SysWOW64\timeout.exetimeout /t 33⤵
- Delays execution with timeout.exe
PID:3404