Analysis
- max time kernel
149s - max time network
152s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
29/05/2026, 12:13
General
- Target hjbk.exe
- Size 3.1MB
- Sample260529-pd2w2abs61
- SHA256 d9aff50ce278f481649acb776de0c2350c410249d97781cb33da92098fa330f5
Malware Config
Signatures
- Downloads MZ/PE file 2 IoCs
- Executes dropped EXE 2 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- 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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\hjbk.exe"C:\Users\Admin\AppData\Local\Temp\hjbk.exe"1⤵
- Downloads MZ/PE file
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\Documents\Screenshot album\EDorAXUGjTzks3jgTqAsZUj0.exe"C:\Users\Admin\Documents\Screenshot album\EDorAXUGjTzks3jgTqAsZUj0.exe"2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\Documents\Screenshot album\h_BE1E5Vf7y54vrUMXaWoTX_.exe"C:\Users\Admin\Documents\Screenshot album\h_BE1E5Vf7y54vrUMXaWoTX_.exe"2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
EDorAXUGjTzks3jgTqAsZUj0.exe
h_BE1E5Vf7y54vrUMXaWoTX_.exe
memory/2420-9-0x0000000000400000-0x00000000004DD000-memory.dmp
memory/2420-10-0x0000000000400000-0x00000000004DD000-memory.dmp
memory/2420-20-0x0000000000400000-0x00000000004DD000-memory.dmp
memory/2496-19-0x0000000000400000-0x00000000004E8000-memory.dmp
memory/2496-21-0x0000000000400000-0x00000000004E8000-memory.dmp
memory/2496-23-0x0000000000400000-0x00000000004E8000-memory.dmp
memory/3248-0-0x0000000140000000-0x0000000140095000-memory.dmp
memory/3248-22-0x0000000140000000-0x0000000140095000-memory.dmp