Analysis
- max time kernel
151s - max time network
48s - platform
windows7_x64 - resource
win7-20220901-en - resource tags
- submitted
26/11/2022, 08:40
General
- Target cb1a8d8d5d3875fcb6205bd40923cfdd208c46873ff44fff3f153456d7d73400.exe
- Size 116KB
- Sample221126-klbycsfb23
- SHA256 cb1a8d8d5d3875fcb6205bd40923cfdd208c46873ff44fff3f153456d7d73400
Malware Config
Extracted
-
nanocore
-
activate_away_mode
false
- backup_connection_host
- backup_dns_server
-
buffer_size
0
-
build_time
0001-01-01T00:00:00Z
-
bypass_user_account_control
false
- bypass_user_account_control_data
-
clear_access_control
false
-
clear_zone_identifier
false
-
connect_delay
0
-
connection_port
0
- default_group
-
enable_debug_mode
false
-
gc_threshold
0
-
keep_alive_timeout
0
-
keyboard_logging
false
-
lan_timeout
0
-
max_packet_size
0
- mutex
-
mutex_timeout
0
-
prevent_system_sleep
false
- primary_connection_host
- primary_dns_server
-
request_elevation
false
-
restart_delay
0
-
run_delay
0
-
run_on_startup
false
-
set_critical_process
false
-
timeout_interval
0
-
use_custom_dns_server
false
- version
-
wan_timeout
0
Signatures
- NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\cb1a8d8d5d3875fcb6205bd40923cfdd208c46873ff44fff3f153456d7d73400.exe"C:\Users\Admin\AppData\Local\Temp\cb1a8d8d5d3875fcb6205bd40923cfdd208c46873ff44fff3f153456d7d73400.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\cb1a8d8d5d3875fcb6205bd40923cfdd208c46873ff44fff3f153456d7d73400.exe"C:\Users\Admin\AppData\Local\Temp\cb1a8d8d5d3875fcb6205bd40923cfdd208c46873ff44fff3f153456d7d73400.exe"2⤵
- Executes dropped EXE
- Checks whether UAC is enabled
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
cb1a8d8d5d3875fcb6205bd40923cfdd208c46873ff44fff3f153456d7d73400.exe
cb1a8d8d5d3875fcb6205bd40923cfdd208c46873ff44fff3f153456d7d73400.exe
memory/544-61-0x0000000000400000-0x0000000000424000-memory.dmp
memory/544-58-0x0000000000400000-0x0000000000424000-memory.dmp
memory/544-59-0x0000000000400000-0x0000000000424000-memory.dmp
memory/544-62-0x0000000000400000-0x0000000000424000-memory.dmp
memory/544-63-0x0000000000400000-0x0000000000424000-memory.dmp
memory/544-67-0x0000000000400000-0x0000000000424000-memory.dmp
memory/544-69-0x0000000000400000-0x0000000000424000-memory.dmp
memory/544-71-0x0000000074990000-0x0000000074F3B000-memory.dmp
memory/544-72-0x0000000074990000-0x0000000074F3B000-memory.dmp
memory/1720-56-0x0000000074990000-0x0000000074F3B000-memory.dmp
memory/1720-54-0x00000000765B1000-0x00000000765B3000-memory.dmp
memory/1720-55-0x0000000074990000-0x0000000074F3B000-memory.dmp