Analysis
- max time kernel
148s - max time network
142s - platform
windows11-21h2_x64 - resource
win11-20240412-en - resource tags
- submitted
21/04/2024, 04:37
General
- Target a05f8216d17b4637e211368614b7e2b5dd4f2a35511d9eeb9c933f97ecb7d511.exe
- Size 1.9MB
- Sample240421-e818wabd47
- SHA256 a05f8216d17b4637e211368614b7e2b5dd4f2a35511d9eeb9c933f97ecb7d511
Malware Config
Extracted
-
amadey
-
4.17
-
http://193.233.132.167
-
install_dir
4d0ab15804
-
install_file
chrosha.exe
-
strings_key
1a9519d7b465e1f4880fa09a6162d768
-
url_paths
/enigma/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.
- 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 WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- 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 WriteProcessMemory 12 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a05f8216d17b4637e211368614b7e2b5dd4f2a35511d9eeb9c933f97ecb7d511.exe"C:\Users\Admin\AppData\Local\Temp\a05f8216d17b4637e211368614b7e2b5dd4f2a35511d9eeb9c933f97ecb7d511.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
-
C:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.exeC:\Users\Admin\AppData\Local\Temp\4d0ab15804\chrosha.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
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll, Main2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\cred64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\netsh.exenetsh wlan show profiles4⤵
-
-
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\718508534211_Desktop.zip' -CompressionLevel Optimal4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
-
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dll, Main2⤵
- Blocklisted process makes network request
- Loads dropped DLL
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
chrosha.exe
__PSScriptPolicyTest_x2lue2ru.ki5.ps1
clip64.dll
cred64.dll
memory/2212-79-0x0000000000180000-0x0000000000653000-memory.dmp
memory/2212-21-0x0000000004C40000-0x0000000004C41000-memory.dmp
memory/2212-81-0x0000000000180000-0x0000000000653000-memory.dmp
memory/2212-78-0x0000000000180000-0x0000000000653000-memory.dmp
memory/2212-77-0x0000000000180000-0x0000000000653000-memory.dmp
memory/2212-76-0x0000000000180000-0x0000000000653000-memory.dmp
memory/2212-82-0x0000000000180000-0x0000000000653000-memory.dmp
memory/2212-64-0x0000000000180000-0x0000000000653000-memory.dmp
memory/2212-83-0x0000000000180000-0x0000000000653000-memory.dmp
memory/2212-18-0x0000000000180000-0x0000000000653000-memory.dmp
memory/2212-19-0x0000000000180000-0x0000000000653000-memory.dmp
memory/2212-80-0x0000000000180000-0x0000000000653000-memory.dmp
memory/2212-22-0x0000000004C20000-0x0000000004C21000-memory.dmp
memory/2212-20-0x0000000004C30000-0x0000000004C31000-memory.dmp
memory/2212-23-0x0000000004C60000-0x0000000004C61000-memory.dmp
memory/2212-24-0x0000000004C00000-0x0000000004C01000-memory.dmp
memory/2212-25-0x0000000004C10000-0x0000000004C11000-memory.dmp
memory/2212-26-0x0000000004C80000-0x0000000004C81000-memory.dmp
memory/2212-27-0x0000000004C70000-0x0000000004C71000-memory.dmp
memory/2212-28-0x0000000000180000-0x0000000000653000-memory.dmp
memory/2212-29-0x0000000000180000-0x0000000000653000-memory.dmp
memory/2212-30-0x0000000000180000-0x0000000000653000-memory.dmp
memory/2212-84-0x0000000000180000-0x0000000000653000-memory.dmp
memory/2940-15-0x0000000000810000-0x0000000000CE3000-memory.dmp
memory/2940-4-0x0000000005410000-0x0000000005411000-memory.dmp
memory/2940-1-0x0000000077606000-0x0000000077608000-memory.dmp
memory/2940-2-0x0000000000810000-0x0000000000CE3000-memory.dmp
memory/2940-8-0x0000000005430000-0x0000000005431000-memory.dmp
memory/2940-7-0x0000000005400000-0x0000000005401000-memory.dmp
memory/2940-6-0x00000000053F0000-0x00000000053F1000-memory.dmp
memory/2940-5-0x0000000005450000-0x0000000005451000-memory.dmp
memory/2940-3-0x0000000005420000-0x0000000005421000-memory.dmp
memory/2940-0-0x0000000000810000-0x0000000000CE3000-memory.dmp
memory/2940-10-0x0000000005460000-0x0000000005461000-memory.dmp
memory/2940-9-0x0000000005470000-0x0000000005471000-memory.dmp
memory/3440-63-0x00007FF9C8540000-0x00007FF9C9002000-memory.dmp
memory/3440-51-0x00000144A66B0000-0x00000144A66D2000-memory.dmp
memory/3440-57-0x00000144A6730000-0x00000144A673A000-memory.dmp
memory/3440-56-0x00000144A6740000-0x00000144A6752000-memory.dmp
memory/3440-53-0x00000144A67C0000-0x00000144A67D0000-memory.dmp
memory/3440-55-0x00000144A67C0000-0x00000144A67D0000-memory.dmp
memory/3440-54-0x00000144A67C0000-0x00000144A67D0000-memory.dmp
memory/3440-52-0x00007FF9C8540000-0x00007FF9C9002000-memory.dmp