Analysis
- max time kernel
149s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
16/10/2026, 09:46
General
- Target BlackWorm.exe
- Size 833KB
- Sample261016-lrwemacy4n
- SHA256 72abca8b0ffffd9996b365927551c610c7e8c96c624b6a7d4bcc000c5bf4e3eb
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
gtd31000.duckdns.org:10750
-
fa13c4b5-e860-4ea3-9882-c2fa3f838271
-
activate_away_mode
false
- backup_connection_host
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2016-11-30T16:26:16.088434736Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
false
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
10750
-
default_group
fevrier
-
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
fa13c4b5-e860-4ea3-9882-c2fa3f838271
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
gtd31000.duckdns.org
-
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 5 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 2 IoCs
- Drops file in Program Files directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 45 IoCs
- Suspicious behavior: GetForegroundWindowSpam 2 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\BlackWorm.exe"C:\Users\Admin\AppData\Local\Temp\BlackWorm.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Black Worm.exe"C:\Users\Admin\AppData\Local\Temp\Black Worm.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
-
-
C:\Users\Admin\AppData\Local\Temp\taskmgr.exe"C:\Users\Admin\AppData\Local\Temp\taskmgr.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\taskmgr.exe"C:\Users\Admin\AppData\Local\Temp\taskmgr.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
-
-
C:\Program Files (x86)\UDP Host\udphost.exe"C:\Program Files (x86)\UDP Host\udphost.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Program Files (x86)\UDP Host\udphost.exe"C:\Program Files (x86)\UDP Host\udphost.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
Black Worm.exe
taskmgr.exe
memory/204-45-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3184-43-0x0000000000E50000-0x0000000000E60000-memory.dmp
memory/3184-37-0x0000000000E50000-0x0000000000E60000-memory.dmp
memory/3184-38-0x0000000073692000-0x0000000073694000-memory.dmp
memory/4188-31-0x00007FF9B4990000-0x00007FF9B53C8000-memory.dmp
memory/4188-34-0x00007FF9B4990000-0x00007FF9B53C8000-memory.dmp
memory/4188-26-0x000000001CD40000-0x000000001CD8C000-memory.dmp
memory/4188-25-0x00000000018C0000-0x00000000018C8000-memory.dmp
memory/4188-27-0x00007FF9B4990000-0x00007FF9B53C8000-memory.dmp
memory/4188-28-0x00007FF9B4990000-0x00007FF9B53C8000-memory.dmp
memory/4188-29-0x00007FF9B4990000-0x00007FF9B53C8000-memory.dmp
memory/4188-30-0x00007FF9B4990000-0x00007FF9B53C8000-memory.dmp
memory/4188-23-0x000000001CBA0000-0x000000001CC3C000-memory.dmp
memory/4188-32-0x00007FF9B4990000-0x00007FF9B53C8000-memory.dmp
memory/4188-33-0x00007FF9B4990000-0x00007FF9B53C8000-memory.dmp
memory/4188-24-0x00007FF9B4990000-0x00007FF9B53C8000-memory.dmp
memory/4188-35-0x00007FF9B4990000-0x00007FF9B53C8000-memory.dmp
memory/4188-22-0x00007FF9B4990000-0x00007FF9B53C8000-memory.dmp
memory/4188-21-0x000000001C630000-0x000000001CAFE000-memory.dmp
memory/4188-36-0x00007FF9B4990000-0x00007FF9B53C8000-memory.dmp
memory/4188-39-0x00007FF9B4C8C000-0x00007FF9B4C8D000-memory.dmp
memory/4188-40-0x00007FF9B4C8A000-0x00007FF9B4C8B000-memory.dmp
memory/4188-41-0x00007FF9B4990000-0x00007FF9B53C8000-memory.dmp
memory/4188-42-0x00007FF9B4990000-0x00007FF9B53C8000-memory.dmp
memory/4188-20-0x000000001C0B0000-0x000000001C156000-memory.dmp
memory/4188-44-0x00007FF9B4990000-0x00007FF9B53C8000-memory.dmp
memory/4188-18-0x00007FF9B4C8A000-0x00007FF9B4C8B000-memory.dmp