Analysis
- max time kernel
146s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
15/03/2024, 01:51
General
- Target 2bcab6a5802bfbff17223862cbdb10e7.exe
- Size 401KB
- Sample240315-b9tnmsdf3v
- SHA256 d5699a87bb3c073649f980158a31bf8975bdbb0ab51b06c9b0e82d6b2f0b861e
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
kgj112233.codns.com:54984
-
6664871b-332f-430c-80f4-d066c80c5b40
-
activate_away_mode
true
-
backup_connection_host
kgj112233.codns.com
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2023-12-21T23:04:34.470922736Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
54984
-
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
6664871b-332f-430c-80f4-d066c80c5b40
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
kgj112233.codns.com
-
primary_dns_server
8.8.8.8
-
request_elevation
true
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
true
-
set_critical_process
true
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Signatures
- NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2bcab6a5802bfbff17223862cbdb10e7.exe"C:\Users\Admin\AppData\Local\Temp\2bcab6a5802bfbff17223862cbdb10e7.exe"1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\MServices.exe"C:\Users\Admin\AppData\Local\Temp\MServices.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\MServices.exe"C:\Users\Admin\AppData\Local\Temp\MServices.exe"3⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
MServices.exe.log
MServices.exe
memory/2932-18-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/2932-26-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/2932-21-0x00000000057B0000-0x0000000005D54000-memory.dmp
memory/2932-19-0x00000000029F0000-0x00000000029FA000-memory.dmp
memory/2932-20-0x00000000051F0000-0x0000000005200000-memory.dmp
memory/4316-33-0x00000000058F0000-0x000000000590E000-memory.dmp
memory/4316-42-0x0000000006AC0000-0x0000000006ACE000-memory.dmp
memory/4316-58-0x0000000005720000-0x0000000005730000-memory.dmp
memory/4316-57-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/4316-22-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4316-27-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/4316-49-0x0000000006E80000-0x0000000006EE6000-memory.dmp
memory/4316-28-0x0000000005410000-0x00000000054A2000-memory.dmp
memory/4316-39-0x0000000006A90000-0x0000000006A9E000-memory.dmp
memory/4316-29-0x0000000005720000-0x0000000005730000-memory.dmp
memory/4316-30-0x0000000005660000-0x000000000566A000-memory.dmp
memory/4316-40-0x0000000006AA0000-0x0000000006AB2000-memory.dmp
memory/4316-34-0x0000000006300000-0x000000000630A000-memory.dmp
memory/4316-32-0x00000000056C0000-0x00000000056CA000-memory.dmp
memory/4316-37-0x0000000006A50000-0x0000000006A62000-memory.dmp
memory/4316-38-0x0000000006A60000-0x0000000006A7A000-memory.dmp
memory/4316-46-0x0000000006B20000-0x0000000006B2E000-memory.dmp
memory/4316-48-0x0000000006B60000-0x0000000006B74000-memory.dmp
memory/4316-47-0x0000000006B30000-0x0000000006B5E000-memory.dmp
memory/4316-45-0x0000000006B00000-0x0000000006B14000-memory.dmp
memory/4316-44-0x0000000006AE0000-0x0000000006AF0000-memory.dmp
memory/4316-43-0x0000000006AD0000-0x0000000006AE4000-memory.dmp
memory/4316-41-0x0000000006AB0000-0x0000000006ABC000-memory.dmp
memory/5044-17-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/5044-0-0x0000000000EA0000-0x0000000000F0A000-memory.dmp
memory/5044-1-0x00000000744A0000-0x0000000074C50000-memory.dmp
memory/5044-2-0x0000000005880000-0x000000000591C000-memory.dmp
memory/5044-3-0x0000000005A00000-0x0000000005A10000-memory.dmp
memory/5044-4-0x0000000005860000-0x000000000586A000-memory.dmp