Analysis
- max time kernel
149s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
28/02/2024, 10:58
General
- Target abb7cdc024b876ae4bf31f24d7c91b6a.exe
- Size 893KB
- Sample240228-m2579aaa31
- SHA256 1ce353e990a32078c455c1d9e2bdc69267965f8bd93e00988b93241333bb3224
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
185.244.30.84:2345
-
489dd8a3-f821-4388-afb0-856fc319a0bd
-
activate_away_mode
true
- backup_connection_host
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2021-06-08T13:34:51.142019636Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
2345
-
default_group
STARMONEY
-
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
489dd8a3-f821-4388-afb0-856fc319a0bd
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
185.244.30.84
-
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.
- 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).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\abb7cdc024b876ae4bf31f24d7c91b6a.exe"C:\Users\Admin\AppData\Local\Temp\abb7cdc024b876ae4bf31f24d7c91b6a.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FPZrqoR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF211.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\abb7cdc024b876ae4bf31f24d7c91b6a.exe"C:\Users\Admin\AppData\Local\Temp\abb7cdc024b876ae4bf31f24d7c91b6a.exe"2⤵
- 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
memory/3104-10-0x00000000082D0000-0x000000000830C000-memory.dmp
memory/3104-0-0x0000000000350000-0x0000000000434000-memory.dmp
memory/3104-2-0x0000000004EA0000-0x0000000004EB0000-memory.dmp
memory/3104-3-0x0000000004FC0000-0x0000000005052000-memory.dmp
memory/3104-4-0x0000000005610000-0x0000000005BB4000-memory.dmp
memory/3104-5-0x0000000004F60000-0x0000000004F7C000-memory.dmp
memory/3104-6-0x0000000005100000-0x000000000519C000-memory.dmp
memory/3104-7-0x0000000074C30000-0x00000000753E0000-memory.dmp
memory/3104-8-0x0000000004EA0000-0x0000000004EB0000-memory.dmp
memory/3104-9-0x0000000005DA0000-0x0000000005E14000-memory.dmp
memory/3104-1-0x0000000074C30000-0x00000000753E0000-memory.dmp
memory/3104-19-0x0000000074C30000-0x00000000753E0000-memory.dmp
memory/3392-16-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3392-18-0x0000000074C30000-0x00000000753E0000-memory.dmp
memory/3392-20-0x0000000005750000-0x0000000005760000-memory.dmp
memory/3392-21-0x0000000005710000-0x000000000571A000-memory.dmp
memory/3392-23-0x0000000005970000-0x000000000597A000-memory.dmp
memory/3392-24-0x00000000063F0000-0x000000000640E000-memory.dmp
memory/3392-25-0x0000000006530000-0x000000000653A000-memory.dmp
memory/3392-26-0x0000000074C30000-0x00000000753E0000-memory.dmp
memory/3392-27-0x0000000005750000-0x0000000005760000-memory.dmp