Analysis
- max time kernel
117s - max time network
164s - platform
windows10-2004_x64 - resource
win10v2004-20220310-en - submitted
20/03/2022, 01:59
General
- Target d117bb94ace706283addab84a8c3fcd5b93591fc527f0664299dcefabc2a90d3.exe
- Size 2.4MB
- Sample220320-cexbqaeeh2
- SHA256 d117bb94ace706283addab84a8c3fcd5b93591fc527f0664299dcefabc2a90d3
Malware Config
Signatures
- Echelon
Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- 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.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
- Suspicious use of NtSetInformationThreadHideFromDebugger 14 IoCs
- Program crash 2 IoCs
- Suspicious behavior: EnumeratesProcesses 26 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\d117bb94ace706283addab84a8c3fcd5b93591fc527f0664299dcefabc2a90d3.exe"C:\Users\Admin\AppData\Local\Temp\d117bb94ace706283addab84a8c3fcd5b93591fc527f0664299dcefabc2a90d3.exe"1⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Accesses Microsoft Outlook profiles
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 20602⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 20602⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1808 -ip 18081⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1808-134-0x0000000077270000-0x0000000077413000-memory.dmp
memory/1808-135-0x0000000000110000-0x0000000000768000-memory.dmp
memory/1808-136-0x0000000000110000-0x0000000000768000-memory.dmp
memory/1808-137-0x0000000005430000-0x0000000005496000-memory.dmp
memory/1808-138-0x00000000740E0000-0x0000000074890000-memory.dmp
memory/1808-139-0x0000000005700000-0x0000000005701000-memory.dmp
memory/1808-140-0x00000000060E0000-0x0000000006684000-memory.dmp
memory/1808-141-0x0000000005703000-0x0000000005705000-memory.dmp
memory/1808-142-0x0000000005705000-0x0000000005706000-memory.dmp
memory/1808-143-0x0000000005706000-0x0000000005707000-memory.dmp
memory/1808-144-0x0000000005707000-0x0000000005708000-memory.dmp
memory/1808-145-0x0000000005709000-0x000000000570F000-memory.dmp
memory/1808-146-0x0000000006E30000-0x0000000006EC2000-memory.dmp
memory/1808-147-0x00000000070B0000-0x000000000714C000-memory.dmp