Analysis
- max time kernel
123s - max time network
151s - platform
windows7_x64 - resource
win7-en-20210920 - submitted
22/10/2021, 10:51
General
- Target Conform descrierii traducereProfil liniar355377.exe
- Size 300KB
- Sample211022-mxtnnacdbq
- SHA256 abca0434af61ccbf707f5ea013f0c5f582106c9701552eeba5e64d678401dfd2
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
178.170.138.163:5626
-
01f9d977-6605-495e-941a-753d3cd6dc0b
-
activate_away_mode
true
- backup_connection_host
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2021-02-27T13:54:38.807349736Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
true
-
connect_delay
4000
-
connection_port
5626
-
default_group
4Maticross.
-
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
01f9d977-6605-495e-941a-753d3cd6dc0b
-
mutex_timeout
5000
-
prevent_system_sleep
true
-
primary_connection_host
178.170.138.163
-
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.
- suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
- Loads dropped DLL 1 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). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Conform descrierii traducereProfil liniar355377.exe"C:\Users\Admin\AppData\Local\Temp\Conform descrierii traducereProfil liniar355377.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Conform descrierii traducereProfil liniar355377.exe"C:\Users\Admin\AppData\Local\Temp\Conform descrierii traducereProfil liniar355377.exe"2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/856-56-0x0000000000400000-0x0000000000448000-memory.dmp
memory/856-60-0x0000000001D70000-0x0000000001D71000-memory.dmp
memory/856-59-0x0000000000400000-0x0000000000448000-memory.dmp
memory/856-61-0x0000000001D71000-0x0000000001D72000-memory.dmp
memory/856-63-0x0000000001D77000-0x0000000001D78000-memory.dmp
memory/856-62-0x0000000001D72000-0x0000000001D74000-memory.dmp
memory/856-64-0x0000000001D78000-0x0000000001D79000-memory.dmp
memory/1776-54-0x0000000076961000-0x0000000076963000-memory.dmp