Analysis
- max time kernel
149s - max time network
155s - platform
windows10-ltsc 2021_x64 - resource
win10ltsc2021-20241023-en - resource tags
- submitted
31/10/2024, 16:14
General
- Target KRX-Client-18.7-win64-public v1.24/KRX Client.exe
- Size 13.4MB
- Sample241031-tpqelaspbp
- SHA256 5dede00906c53050991579cbe0859ddb26e939afa100a5a03c0d6e947dbce036
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.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Modifies registry class 31 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\KRX-Client-18.7-win64-public v1.24\KRX Client.exe"C:\Users\Admin\AppData\Local\Temp\KRX-Client-18.7-win64-public v1.24\KRX Client.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
- Checks SCSI registry key(s)
- Modifies registry class
- Suspicious use of SetWindowsHookEx
-
C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x3f8 0x4581⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/4660-0-0x0000000140000000-0x00000001420C5000-memory.dmp
memory/4660-1-0x0000000140000000-0x00000001420C5000-memory.dmp
memory/4660-2-0x0000000140000000-0x00000001420C5000-memory.dmp
memory/4660-4-0x0000000140000000-0x00000001420C5000-memory.dmp
memory/4660-3-0x0000000140000000-0x00000001420C5000-memory.dmp
memory/4660-5-0x0000000140000000-0x00000001420C5000-memory.dmp
memory/4660-6-0x00007FFDADE31000-0x00007FFDADE33000-memory.dmp
memory/4660-13-0x00007FFD8FCB0000-0x00007FFD8FEEE000-memory.dmp
memory/4660-14-0x00007FFD8F8E0000-0x00007FFD8FCAF000-memory.dmp
memory/4660-12-0x00007FFD9C390000-0x00007FFD9C417000-memory.dmp
memory/4660-24-0x00007FFD9E8A0000-0x00007FFD9E8B2000-memory.dmp
memory/4660-23-0x00007FFD8E300000-0x00007FFD8E392000-memory.dmp
memory/4660-15-0x00007FFD8E7C0000-0x00007FFD8F8D4000-memory.dmp
memory/4660-9-0x0000000140000000-0x00000001420C5000-memory.dmp
memory/4660-22-0x0000000062E80000-0x0000000062EA6000-memory.dmp
memory/4660-21-0x0000000064940000-0x0000000064955000-memory.dmp
memory/4660-20-0x00007FFD8E3A0000-0x00007FFD8E51A000-memory.dmp
memory/4660-19-0x00007FFDA02D0000-0x00007FFDA02DE000-memory.dmp
memory/4660-18-0x00007FFDA3DF0000-0x00007FFDA3E05000-memory.dmp
memory/4660-17-0x00007FFD9E8C0000-0x00007FFD9E8E8000-memory.dmp
memory/4660-16-0x00007FFD9C2E0000-0x00007FFD9C387000-memory.dmp
memory/4660-11-0x00007FFD9F1B0000-0x00007FFD9F1FE000-memory.dmp
memory/4660-10-0x00007FFD9E9E0000-0x00007FFD9EA90000-memory.dmp
memory/4660-25-0x0000000140000000-0x00000001420C5000-memory.dmp
memory/4660-56-0x0000000140000000-0x00000001420C5000-memory.dmp
memory/4660-72-0x0000000140000000-0x00000001420C5000-memory.dmp