Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
26/04/2026, 04:26
General
- Target app_slot365.exe
- Size 202KB
- Sample260426-e2z28sfv4l
- SHA256 c702ec4d3e248d3a70d1458ff658048bb4c81c39f4eba94449f13dc8df11a91c
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
slot365.biz:443
-
app.slot365.biz:443
-
4d42b44e-5ec2-47e8-a7ff-ac51cadd5363
-
activate_away_mode
false
-
backup_connection_host
app.slot365.biz
- backup_dns_server
-
buffer_size
65535
-
build_time
2026-02-05T06:07:11.537692236Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
false
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
443
-
default_group
Slot 365
-
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
4d42b44e-5ec2-47e8-a7ff-ac51cadd5363
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
slot365.biz
- primary_dns_server
-
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 3 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 15 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\app_slot365.exe"C:\Users\Admin\AppData\Local\Temp\app_slot365.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)\DHCP Monitor\dhcpmon.exe"C:\Program Files (x86)\DHCP Monitor\dhcpmon.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
Loading Replay Monitor...
Downloads
dhcpmon.exe
memory/3064-0-0x0000000000E70000-0x0000000000E80000-memory.dmp
memory/3064-1-0x0000000074962000-0x0000000074964000-memory.dmp
memory/3064-4-0x0000000074960000-0x0000000074F11000-memory.dmp
memory/3064-9-0x0000000000E70000-0x0000000000E80000-memory.dmp
memory/3064-13-0x0000000074962000-0x0000000074964000-memory.dmp
memory/3064-14-0x0000000074960000-0x0000000074F11000-memory.dmp
memory/3064-15-0x00000000027F0000-0x0000000002877000-memory.dmp
memory/3600-7-0x0000000074960000-0x0000000074F11000-memory.dmp
memory/3600-8-0x0000000074960000-0x0000000074F11000-memory.dmp
memory/3600-11-0x0000000001110000-0x0000000001197000-memory.dmp
memory/3600-12-0x0000000074960000-0x0000000074F11000-memory.dmp