Analysis
- max time kernel
146s - max time network
156s - platform
windows11-21h2_x64 - resource
win11-20240709-en - resource tags
- submitted
24/07/2024, 04:35
General
- Target 724f6f07b8d94b11184884da8fcf987cf43ce7020adf24240e213b65d2f93b4f.exe
- Size 1.8MB
- Sample240724-e7s6wa1frg
- SHA256 724f6f07b8d94b11184884da8fcf987cf43ce7020adf24240e213b65d2f93b4f
Malware Config
Extracted
-
amadey
-
4.30
-
4dd39d
-
http://77.91.77.82
-
install_dir
ad40971b6b
-
install_file
explorti.exe
-
strings_key
a434973ad22def7137dbb5e059b7081e
-
url_paths
/Hun4Ko/index.php
Extracted
-
stealc
-
sila
-
http://85.28.47.31
-
url_path
/5499d72b3a3e55be.php
Signatures
- Amadey
Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.
- Stealc
Stealc is an infostealer written in C++.
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs
- Downloads MZ/PE file
- Checks BIOS information in registry 2 TTPs 8 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Executes dropped EXE 5 IoCs
- Identifies Wine through registry keys 2 TTPs 4 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\724f6f07b8d94b11184884da8fcf987cf43ce7020adf24240e213b65d2f93b4f.exe"C:\Users\Admin\AppData\Local\Temp\724f6f07b8d94b11184884da8fcf987cf43ce7020adf24240e213b65d2f93b4f.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\Temp\1000021001\0a785b21fd.exe"C:\Users\Admin\AppData\Local\Temp\1000021001\0a785b21fd.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3844 -s 11204⤵
- Program crash
-
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3844 -ip 38441⤵
-
C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exeC:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
-
C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exeC:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
0a785b21fd.exe
explorti.exe
memory/1824-61-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/1824-60-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/1928-1-0x0000000077E26000-0x0000000077E28000-memory.dmp
memory/1928-2-0x0000000000DA1000-0x0000000000DCF000-memory.dmp
memory/1928-3-0x0000000000DA0000-0x0000000001264000-memory.dmp
memory/1928-5-0x0000000000DA0000-0x0000000001264000-memory.dmp
memory/1928-18-0x0000000000DA0000-0x0000000001264000-memory.dmp
memory/1928-0-0x0000000000DA0000-0x0000000001264000-memory.dmp
memory/2400-52-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/2400-51-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-48-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-19-0x0000000000EF1000-0x0000000000F1F000-memory.dmp
memory/3196-67-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-66-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-46-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-47-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-65-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-49-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-21-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-20-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-53-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-54-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-55-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-56-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-57-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-58-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-64-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-16-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-62-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3196-63-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/3844-45-0x0000000000400000-0x000000000245F000-memory.dmp
memory/4584-28-0x0000000000EF0000-0x00000000013B4000-memory.dmp
memory/4584-27-0x0000000000400000-0x0000000000643000-memory.dmp
memory/4584-24-0x0000000000400000-0x0000000000643000-memory.dmp