Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
- submitted
02/07/2026, 18:00
General
- Target pk68.net.exe
- Size 202KB
- Sample260702-wlsrnabt7x
- SHA256 b66119ad548007e383d58987d81a200a42a89f021d0fc3b57022b91ea267bd2c
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
pk68.net:443
-
www.pk68.net:443
-
5ab4bebe-1d7d-4115-a225-8f52b2842897
-
activate_away_mode
true
-
backup_connection_host
www.pk68.net
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2026-04-12T20:02:53.403091536Z
-
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
pk68
-
enable_debug_mode
false
-
gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
-
keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
5ab4bebe-1d7d-4115-a225-8f52b2842897
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
pk68.net
-
primary_dns_server
8.8.8.8
-
request_elevation
true
-
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 2 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 57 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\pk68.net.exe"C:\Users\Admin\AppData\Local\Temp\pk68.net.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)\LAN Service\lansv.exe"C:\Program Files (x86)\LAN Service\lansv.exe"1⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
lansv.exe
memory/3168-0-0x0000000000C80000-0x0000000000C90000-memory.dmp
memory/3168-1-0x0000000074592000-0x0000000074594000-memory.dmp
memory/3168-3-0x0000000074590000-0x0000000074BB1000-memory.dmp
memory/3168-7-0x0000000000C80000-0x0000000000C90000-memory.dmp
memory/3168-8-0x0000000074592000-0x0000000074594000-memory.dmp
memory/3168-10-0x0000000074590000-0x0000000074BB1000-memory.dmp
memory/6044-5-0x0000000074590000-0x0000000074BB1000-memory.dmp
memory/6044-6-0x0000000074590000-0x0000000074BB1000-memory.dmp
memory/6044-9-0x0000000074590000-0x0000000074BB1000-memory.dmp