Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
03/03/2024, 22:15
General
- Target b087d67edeca163acffc1f5991c2dd79.exe
- Size 2.2MB
- Sample240303-16bfbsae94
- SHA256 6f7f765a43fa82eefeb1f4ff9f7ae825ad4ea39c7774094d76d05e1e705aabc0
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
185.244.30.139:4050
-
52e05d5b-dcbb-4f70-86bd-eb80b3602ddc
-
activate_away_mode
true
- backup_connection_host
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2020-02-09T23:01:15.091230736Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
4050
-
default_group
money
-
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
52e05d5b-dcbb-4f70-86bd-eb80b3602ddc
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
185.244.30.139
-
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.
- Executes dropped EXE 2 IoCs
- UPX packed file 9 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b087d67edeca163acffc1f5991c2dd79.exe"C:\Users\Admin\AppData\Local\Temp\b087d67edeca163acffc1f5991c2dd79.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c test.exe2⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\test.exetest.exe3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\test.exetest.exe4⤵
- 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
test.exe
memory/1724-5-0x0000000000400000-0x00000000004D3000-memory.dmp
memory/1724-6-0x0000000002380000-0x0000000002381000-memory.dmp
memory/1724-7-0x00000000023F0000-0x00000000023FC000-memory.dmp
memory/1724-9-0x0000000002550000-0x0000000002551000-memory.dmp
memory/1724-12-0x0000000000400000-0x00000000004D3000-memory.dmp
memory/2364-8-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2364-14-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2364-15-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2364-18-0x0000000000970000-0x00000000009A8000-memory.dmp
memory/2364-19-0x0000000000970000-0x00000000009A8000-memory.dmp
memory/2364-17-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2364-23-0x0000000075050000-0x0000000075140000-memory.dmp
memory/2364-24-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-26-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-29-0x0000000075050000-0x0000000075140000-memory.dmp
memory/2364-31-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-33-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-35-0x0000000075050000-0x0000000075140000-memory.dmp
memory/2364-37-0x0000000075050000-0x0000000075140000-memory.dmp
memory/2364-38-0x0000000077002000-0x0000000077003000-memory.dmp
memory/2364-40-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-41-0x00000000747F0000-0x0000000074DA1000-memory.dmp
memory/2364-42-0x0000000000AE0000-0x0000000000AF0000-memory.dmp
memory/2364-43-0x00000000747F0000-0x0000000074DA1000-memory.dmp
memory/2364-44-0x0000000075050000-0x0000000075140000-memory.dmp
memory/2364-46-0x0000000077002000-0x0000000077003000-memory.dmp
memory/2364-48-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-45-0x0000000075050000-0x0000000075140000-memory.dmp
memory/2364-49-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-47-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-51-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2364-52-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-53-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-54-0x0000000075050000-0x0000000075140000-memory.dmp
memory/2364-55-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-56-0x0000000075050000-0x0000000075140000-memory.dmp
memory/2364-57-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-58-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-59-0x0000000075050000-0x0000000075140000-memory.dmp
memory/2364-60-0x0000000075050000-0x0000000075140000-memory.dmp
memory/2364-61-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-62-0x00000000747F0000-0x0000000074DA1000-memory.dmp
memory/2364-64-0x00000000747F0000-0x0000000074DA1000-memory.dmp
memory/2364-66-0x0000000075050000-0x0000000075140000-memory.dmp
memory/2364-65-0x0000000075050000-0x0000000075140000-memory.dmp
memory/2364-67-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-68-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-69-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-70-0x0000000000A10000-0x0000000000A20000-memory.dmp
memory/2364-71-0x0000000075050000-0x0000000075140000-memory.dmp
memory/2364-72-0x0000000000AE0000-0x0000000000AF0000-memory.dmp
memory/3648-0-0x0000000000400000-0x0000000000847000-memory.dmp
memory/3648-20-0x0000000000400000-0x0000000000847000-memory.dmp