Analysis
- max time kernel
142s - max time network
125s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
02/07/2024, 06:25
General
- Target SecuriteInfo.com.Win32.PWSX-gen.20622.25663.exe
- Size 2.3MB
- Sample240702-g6mc2stflj
- SHA256 99e1c640be9fa28cee9b185982a47bbbefe8a699b79a22bfbb97c097fb0aec31
Malware Config
Extracted
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stealc
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jony
-
http://85.28.47.4
-
url_path
/920475a59bac849d.php
Extracted
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amadey
-
4.30
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4dd39d
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http://77.91.77.82
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install_dir
ad40971b6b
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install_file
explorti.exe
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strings_key
a434973ad22def7137dbb5e059b7081e
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url_paths
/Hun4Ko/index.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.
- Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 4 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.
- Loads dropped DLL 2 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.20622.25663.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.20622.25663.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\JKJDAEBFCB.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\JKJDAEBFCB.exe"C:\Users\Admin\AppData\Local\Temp\JKJDAEBFCB.exe"3⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- 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"4⤵
- 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
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-
-
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\CBKJKJDBFI.exe"2⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
-
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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
mozglue.dll
nss3.dll
JKJDAEBFCB.exe
memory/1292-101-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/1292-100-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/1592-81-0x0000000000A00000-0x0000000000EA5000-memory.dmp
memory/1592-94-0x0000000000A00000-0x0000000000EA5000-memory.dmp
memory/3624-98-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/3624-107-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/3624-114-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/3624-96-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/3624-97-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/3624-113-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/3624-112-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/3624-111-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/3624-102-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/3624-103-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/3624-104-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/3624-105-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/3624-106-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/3624-95-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/3632-1-0x000000007F5B0000-0x000000007F981000-memory.dmp
memory/3632-2-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/3632-0-0x00000000000F0000-0x0000000000CC3000-memory.dmp
memory/3632-78-0x00000000000F0000-0x0000000000CC3000-memory.dmp
memory/4496-109-0x00000000007C0000-0x0000000000C65000-memory.dmp
memory/4496-110-0x00000000007C0000-0x0000000000C65000-memory.dmp