Analysis
- user interaction
yes - max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
09/08/2026, 17:58
General
- Target echo-free.exe
- Size 50.3MB
- Sample260809-wkcdaabl2x
- SHA256 526a03655fa47bcc97dcf25033d3267b53ea5e8e5e11926e18eb9b0ec2e54f82
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Modifies system certificate store 2 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 7 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\echo-free.exe"C:\Users\Admin\AppData\Local\Temp\echo-free.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks whether UAC is enabled
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/5096-0-0x00007FFB43864000-0x00007FFB43865000-memory.dmp
memory/5096-2-0x00007FFB43800000-0x00007FFB43AC9000-memory.dmp
memory/5096-1-0x00007FFB43800000-0x00007FFB43AC9000-memory.dmp
memory/5096-3-0x00007FFB43800000-0x00007FFB43AC9000-memory.dmp
memory/5096-4-0x00007FFB43800000-0x00007FFB43AC9000-memory.dmp
memory/5096-6-0x0000000180000000-0x0000000180008000-memory.dmp
memory/5096-5-0x0000000180000000-0x0000000180008000-memory.dmp
memory/5096-12-0x00007FFB43800000-0x00007FFB43AC9000-memory.dmp
memory/5096-13-0x00007FFB43864000-0x00007FFB43865000-memory.dmp
memory/5096-14-0x00007FFB43800000-0x00007FFB43AC9000-memory.dmp
memory/5096-15-0x0000000140000000-0x0000000144155000-memory.dmp
memory/5096-16-0x0000000140000000-0x0000000144155000-memory.dmp
memory/5096-23-0x00007FFB43800000-0x00007FFB43AC9000-memory.dmp
memory/5096-24-0x00007FFB43800000-0x00007FFB43AC9000-memory.dmp
memory/5096-25-0x0000000140000000-0x0000000144155000-memory.dmp
memory/5096-26-0x00007FFB43800000-0x00007FFB43AC9000-memory.dmp
memory/5096-27-0x00007FFB43800000-0x00007FFB43AC9000-memory.dmp
memory/5096-28-0x00007FFB43800000-0x00007FFB43AC9000-memory.dmp
memory/5096-30-0x00007FFB43800000-0x00007FFB43AC9000-memory.dmp
memory/5096-29-0x0000000140000000-0x0000000144155000-memory.dmp