Analysis
- max time kernel
191s - max time network
197s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
- submitted
27/11/2022, 00:02
General
- Target e5a08c20ffae6658a8f4e91c1154b10abe7eb7bf1e6b0cfd33eed75713a7e4e9.exe
- Size 421KB
- Sample221127-abyz2aee29
- SHA256 e5a08c20ffae6658a8f4e91c1154b10abe7eb7bf1e6b0cfd33eed75713a7e4e9
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
funnypic.dyndns-remote.com:1800
-
4d611919-aaa1-49fe-b6b4-f424a25bdd6e
-
activate_away_mode
true
- backup_connection_host
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2015-02-17T17:57:48.460023936Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
1800
-
default_group
Startupnanno
-
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
4d611919-aaa1-49fe-b6b4-f424a25bdd6e
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
funnypic.dyndns-remote.com
-
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
- NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
- 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
- Drops file in Program Files directory 2 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\e5a08c20ffae6658a8f4e91c1154b10abe7eb7bf1e6b0cfd33eed75713a7e4e9.exe"C:\Users\Admin\AppData\Local\Temp\e5a08c20ffae6658a8f4e91c1154b10abe7eb7bf1e6b0cfd33eed75713a7e4e9.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\e5a08c20ffae6658a8f4e91c1154b10abe7eb7bf1e6b0cfd33eed75713a7e4e9.exe"C:\Users\Admin\AppData\Local\Temp\e5a08c20ffae6658a8f4e91c1154b10abe7eb7bf1e6b0cfd33eed75713a7e4e9.exe"2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/576-54-0x0000000075FE1000-0x0000000075FE3000-memory.dmp
memory/576-55-0x0000000074610000-0x0000000074BBB000-memory.dmp
memory/576-56-0x0000000074610000-0x0000000074BBB000-memory.dmp
memory/576-57-0x00000000020E6000-0x00000000020F7000-memory.dmp
memory/576-77-0x00000000020E6000-0x00000000020F7000-memory.dmp
memory/576-76-0x0000000074610000-0x0000000074BBB000-memory.dmp
memory/668-62-0x0000000000080000-0x00000000000DA000-memory.dmp
memory/668-61-0x0000000000080000-0x00000000000DA000-memory.dmp
memory/668-66-0x0000000000080000-0x00000000000DA000-memory.dmp
memory/668-67-0x0000000000080000-0x00000000000DA000-memory.dmp
memory/668-71-0x0000000000080000-0x00000000000DA000-memory.dmp
memory/668-74-0x0000000000080000-0x00000000000DA000-memory.dmp
memory/668-59-0x0000000000080000-0x00000000000DA000-memory.dmp
memory/668-58-0x0000000000080000-0x00000000000DA000-memory.dmp
memory/668-78-0x0000000074610000-0x0000000074BBB000-memory.dmp
memory/668-79-0x0000000074610000-0x0000000074BBB000-memory.dmp