Analysis
- max time kernel
148s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
22/09/2026, 18:02
General
- Target defense5.exe
- Size 202KB
- Sample260922-wmelescb52
- SHA256 ad53fc0f9493ca1e79b7813c9b803db64d52beefbd3c7644db290b6e2e766f18
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
c2.8kbetny.com:443
-
8kbetny.com:443
-
a28a9984-e48b-4e1b-a6a3-330fecbf68ee
-
activate_away_mode
true
-
backup_connection_host
8kbetny.com
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2026-07-04T19:41:06.630350436Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
443
-
default_group
Default
-
enable_debug_mode
true
-
gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
-
keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
a28a9984-e48b-4e1b-a6a3-330fecbf68ee
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
c2.8kbetny.com
-
primary_dns_server
8.8.8.8
-
request_elevation
false
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
false
-
set_critical_process
true
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Signatures
- Family: NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Drops file in Program Files directory 1 IoCs
- 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 54 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\defense5.exe"C:\Users\Admin\AppData\Local\Temp\defense5.exe"1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
C:\Program Files (x86)\DPI Subsystem\dpiss.exe"C:\Program Files (x86)\DPI Subsystem\dpiss.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
dpiss.exe
memory/2364-0-0x0000000001AE0000-0x0000000001AF0000-memory.dmp
memory/2364-1-0x0000000074952000-0x0000000074954000-memory.dmp
memory/2364-3-0x0000000074950000-0x0000000074F71000-memory.dmp
memory/2364-7-0x0000000001AE0000-0x0000000001AF0000-memory.dmp
memory/2364-9-0x0000000074952000-0x0000000074954000-memory.dmp
memory/2364-10-0x0000000074950000-0x0000000074F71000-memory.dmp
memory/2752-5-0x0000000074950000-0x0000000074F71000-memory.dmp
memory/2752-6-0x0000000074950000-0x0000000074F71000-memory.dmp
memory/2752-8-0x0000000074950000-0x0000000074F71000-memory.dmp