Analysis
- max time kernel
142s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
16/02/2024, 17:02
General
- Target explorgu.exe
- Size 1.8MB
- Sample240216-vj4kpsea36
- SHA256 45395e701819b1ca0bb6042764e166f72a5ae7e362dd5ad07174f519ee5155ac
Malware Config
Extracted
-
amadey
-
4.17
-
http://185.215.113.32
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install_dir
00c07260dc
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install_file
explorgu.exe
-
strings_key
461809bd97c251ba0c0c8450c7055f1d
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url_paths
/yandex/index.php
Signatures
- Amadey
Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
- Blocklisted process makes network request 2 IoCs
- Downloads MZ/PE file
- Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Identifies Wine through registry keys 2 TTPs 2 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
- Loads dropped DLL 3 IoCs
- Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 16 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\explorgu.exe"C:\Users\Admin\AppData\Local\Temp\explorgu.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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
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C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exeC:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe1⤵
- 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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\838437589323_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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-
-
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll, Main2⤵
- Blocklisted process makes network request
- Loads dropped DLL
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
explorgu.exe
__PSScriptPolicyTest_phuf02py.3bl.ps1
clip64.dll
cred64.dll
memory/2364-65-0x00007FFA4F110000-0x00007FFA4FBD1000-memory.dmp
memory/2364-59-0x000002ABDB320000-0x000002ABDB32A000-memory.dmp
memory/2364-58-0x000002ABDD4B0000-0x000002ABDD4C2000-memory.dmp
memory/2364-57-0x000002ABDB330000-0x000002ABDB340000-memory.dmp
memory/2364-56-0x000002ABDB330000-0x000002ABDB340000-memory.dmp
memory/2364-54-0x000002ABDB330000-0x000002ABDB340000-memory.dmp
memory/2364-53-0x00007FFA4F110000-0x00007FFA4FBD1000-memory.dmp
memory/2364-48-0x000002ABDB2A0000-0x000002ABDB2C2000-memory.dmp
memory/3424-12-0x00000000053E0000-0x00000000053E1000-memory.dmp
memory/3424-0-0x00000000008C0000-0x0000000000D7E000-memory.dmp
memory/3424-1-0x00000000771A4000-0x00000000771A6000-memory.dmp
memory/3424-2-0x00000000008C0000-0x0000000000D7E000-memory.dmp
memory/3424-3-0x0000000005390000-0x0000000005391000-memory.dmp
memory/3424-6-0x00000000053D0000-0x00000000053D1000-memory.dmp
memory/3424-4-0x00000000053A0000-0x00000000053A1000-memory.dmp
memory/3424-7-0x0000000005360000-0x0000000005361000-memory.dmp
memory/3424-5-0x0000000005380000-0x0000000005381000-memory.dmp
memory/3424-16-0x00000000008C0000-0x0000000000D7E000-memory.dmp
memory/3424-9-0x00000000053C0000-0x00000000053C1000-memory.dmp
memory/3424-8-0x0000000005370000-0x0000000005371000-memory.dmp
memory/3424-10-0x00000000053F0000-0x00000000053F1000-memory.dmp
memory/4432-26-0x0000000005400000-0x0000000005401000-memory.dmp
memory/4432-20-0x0000000000860000-0x0000000000D1E000-memory.dmp
memory/4432-29-0x0000000005470000-0x0000000005471000-memory.dmp
memory/4432-28-0x0000000005480000-0x0000000005481000-memory.dmp
memory/4432-27-0x0000000005450000-0x0000000005451000-memory.dmp
memory/4432-25-0x00000000053F0000-0x00000000053F1000-memory.dmp
memory/4432-55-0x0000000000860000-0x0000000000D1E000-memory.dmp
memory/4432-21-0x0000000005420000-0x0000000005421000-memory.dmp
memory/4432-24-0x0000000005460000-0x0000000005461000-memory.dmp
memory/4432-23-0x0000000005410000-0x0000000005411000-memory.dmp
memory/4432-22-0x0000000005430000-0x0000000005431000-memory.dmp
memory/4432-30-0x0000000000860000-0x0000000000D1E000-memory.dmp
memory/4432-66-0x0000000000860000-0x0000000000D1E000-memory.dmp
memory/4432-19-0x0000000000860000-0x0000000000D1E000-memory.dmp
memory/4432-78-0x0000000000860000-0x0000000000D1E000-memory.dmp
memory/4432-79-0x0000000000860000-0x0000000000D1E000-memory.dmp
memory/4432-80-0x0000000000860000-0x0000000000D1E000-memory.dmp
memory/4432-81-0x0000000000860000-0x0000000000D1E000-memory.dmp
memory/4432-82-0x0000000000860000-0x0000000000D1E000-memory.dmp
memory/4432-83-0x0000000000860000-0x0000000000D1E000-memory.dmp
memory/4432-84-0x0000000000860000-0x0000000000D1E000-memory.dmp