Analysis
- max time kernel
146s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
29/02/2024, 22:51
General
- Target afac8acbddfc59d99959ea4ab137fe92.exe
- Size 686KB
- Sample240229-2ssm5aeg41
- SHA256 7878b172fba181c1788524b5ef99f4d9129714e6193ddab14f7545670231fcf7
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
venom112.ddns.net:6060
-
127.0.0.1:6060
-
1300da8a-10e3-4fae-a634-fd3e15c63d31
-
activate_away_mode
true
-
backup_connection_host
127.0.0.1
-
backup_dns_server
37.235.1.177
-
buffer_size
65535
-
build_time
2021-03-02T07:13:39.910327636Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
6060
-
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
1300da8a-10e3-4fae-a634-fd3e15c63d31
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
venom112.ddns.net
-
primary_dns_server
37.235.1.174
-
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.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Unexpected DNS network traffic destination 6 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 2 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 4 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\afac8acbddfc59d99959ea4ab137fe92.exe"C:\Users\Admin\AppData\Local\Temp\afac8acbddfc59d99959ea4ab137fe92.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\Sslbkigj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp75A8.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
tmp75A8.tmp
memory/1572-14-0x0000000074640000-0x0000000074BF1000-memory.dmp
memory/1572-20-0x0000000000CA0000-0x0000000000CB0000-memory.dmp
memory/1572-19-0x0000000000CA0000-0x0000000000CB0000-memory.dmp
memory/1572-18-0x0000000074640000-0x0000000074BF1000-memory.dmp
memory/1572-9-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1572-17-0x0000000000CA0000-0x0000000000CB0000-memory.dmp
memory/1572-13-0x0000000074640000-0x0000000074BF1000-memory.dmp
memory/2600-3-0x0000000074640000-0x0000000074BF1000-memory.dmp
memory/2600-12-0x0000000074640000-0x0000000074BF1000-memory.dmp
memory/2600-10-0x0000000001450000-0x0000000001460000-memory.dmp
memory/2600-0-0x0000000074640000-0x0000000074BF1000-memory.dmp
memory/2600-2-0x0000000001450000-0x0000000001460000-memory.dmp
memory/2600-1-0x0000000074640000-0x0000000074BF1000-memory.dmp