Analysis
- max time kernel
148s - max time network
131s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
25/08/2026, 13:33
General
- Target 75d8cb658d7e67754941d0540e3f03c8a16027130ac417d06f333780bc37adae.exe
- Size 4.7MB
- Sample260825-qts5hashph
- SHA256 75d8cb658d7e67754941d0540e3f03c8a16027130ac417d06f333780bc37adae
Malware Config
Extracted
-
bdaejec
-
ddos.dnsnb8.net
Signatures
- Family: Bdaejec
Bdaejec is a backdoor written in C++.
- Detects Bdaejec Backdoor. 2 IoCs
Bdaejec is backdoor written in C++.
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- ASPack v2.12-2.42 1 IoCs
Detects executables packed with ASPack v2.12-2.42
- Checks BIOS information in registry 2 TTPs 2 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
- Themida packer 19 IoCs
Detects Themida, an advanced Windows software protection system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Program Files directory 64 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of SetWindowsHookEx 4 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\75d8cb658d7e67754941d0540e3f03c8a16027130ac417d06f333780bc37adae.exe"C:\Users\Admin\AppData\Local\Temp\75d8cb658d7e67754941d0540e3f03c8a16027130ac417d06f333780bc37adae.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Dyku.exeC:\Users\Admin\AppData\Local\Temp\Dyku.exe2⤵
- Checks computer location settings
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\35431756.bat" "3⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
k2[1].rar
35431756.bat
5D5905C0.exe
Dyku.exe
login.ini
login.ini
memory/2640-161-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-5-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-18-0x00000000031C0000-0x00000000031CB000-memory.dmp
memory/2640-9-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-8-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-7-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-160-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-203-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-202-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-163-0x00000000031C0000-0x00000000031CB000-memory.dmp
memory/2640-164-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-17-0x00000000031C0000-0x00000000031CB000-memory.dmp
memory/2640-192-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-193-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-194-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-195-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-196-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-197-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-198-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-199-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-200-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/2640-201-0x0000000000400000-0x0000000000F3D000-memory.dmp
memory/4920-6-0x00000000005B0000-0x00000000005B9000-memory.dmp
memory/4920-162-0x00000000005B0000-0x00000000005B9000-memory.dmp