Analysis
- max time kernel
146s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
23/11/2024, 05:55
General
- Target 1d69bc05df8be476e6a45c3e5ffd501a765f0116d3971cf6a2445c0e392fb879.exe
- Size 540KB
- Sample241123-gms2gswmfp
- SHA256 1d69bc05df8be476e6a45c3e5ffd501a765f0116d3971cf6a2445c0e392fb879
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.
- Nanocore family
- 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).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 3 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\1d69bc05df8be476e6a45c3e5ffd501a765f0116d3971cf6a2445c0e392fb879.exe"C:\Users\Admin\AppData\Local\Temp\1d69bc05df8be476e6a45c3e5ffd501a765f0116d3971cf6a2445c0e392fb879.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fYFblKct" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4B7B.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\1d69bc05df8be476e6a45c3e5ffd501a765f0116d3971cf6a2445c0e392fb879.exe"C:\Users\Admin\AppData\Local\Temp\1d69bc05df8be476e6a45c3e5ffd501a765f0116d3971cf6a2445c0e392fb879.exe"2⤵
- Checks whether UAC is enabled
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
1d69bc05df8be476e6a45c3e5ffd501a765f0116d3971cf6a2445c0e392fb879.exe.log
memory/2408-27-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/2408-26-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/2408-25-0x0000000005AB0000-0x0000000005ABA000-memory.dmp
memory/2408-24-0x0000000005980000-0x000000000599E000-memory.dmp
memory/2408-23-0x00000000057F0000-0x00000000057FA000-memory.dmp
memory/2408-21-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/2408-19-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/2408-16-0x0000000000400000-0x0000000000438000-memory.dmp
memory/5012-5-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/5012-10-0x0000000007C20000-0x0000000007C7C000-memory.dmp
memory/5012-9-0x0000000007AD0000-0x0000000007B6C000-memory.dmp
memory/5012-8-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/5012-7-0x0000000074B5E000-0x0000000074B5F000-memory.dmp
memory/5012-20-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/5012-6-0x0000000005C10000-0x0000000005C1E000-memory.dmp
memory/5012-0-0x0000000074B5E000-0x0000000074B5F000-memory.dmp
memory/5012-4-0x0000000004E00000-0x0000000004E0A000-memory.dmp
memory/5012-3-0x0000000004D60000-0x0000000004DF2000-memory.dmp
memory/5012-2-0x0000000005270000-0x0000000005814000-memory.dmp
memory/5012-1-0x0000000000420000-0x00000000004AE000-memory.dmp