Analysis
- max time kernel
149s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
27/01/2024, 12:27
General
- Target 7a40d67c8a78ef63bda595ab16f5ac0f.exe
- Size 1.5MB
- Sample240127-pmta9acag3
- SHA256 e2baf0f5b01a92323fa0f46207e5b9ae09ec8945ef722b912d3559d43c6e907c
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
fablousy.kozow.com:4050
-
127.0.0.1:4050
-
58d1d627-4bc2-40ea-9ed5-7063fbcc1866
-
activate_away_mode
true
-
backup_connection_host
127.0.0.1
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2021-05-17T05:23:14.334950536Z
-
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
ike
-
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
58d1d627-4bc2-40ea-9ed5-7063fbcc1866
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
fablousy.kozow.com
-
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.
- 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).
- 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 8 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\7a40d67c8a78ef63bda595ab16f5ac0f.exe"C:\Users\Admin\AppData\Local\Temp\7a40d67c8a78ef63bda595ab16f5ac0f.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uTptUfOsJI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3BDB.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\7a40d67c8a78ef63bda595ab16f5ac0f.exe"C:\Users\Admin\AppData\Local\Temp\7a40d67c8a78ef63bda595ab16f5ac0f.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\7a40d67c8a78ef63bda595ab16f5ac0f.exe"C:\Users\Admin\AppData\Local\Temp\7a40d67c8a78ef63bda595ab16f5ac0f.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\7a40d67c8a78ef63bda595ab16f5ac0f.exe"C:\Users\Admin\AppData\Local\Temp\7a40d67c8a78ef63bda595ab16f5ac0f.exe"2⤵
- 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
7a40d67c8a78ef63bda595ab16f5ac0f.exe.log
tmp3BDB.tmp
memory/3988-28-0x00000000052E0000-0x00000000052F0000-memory.dmp
memory/3988-27-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/3988-26-0x0000000005EC0000-0x0000000005ECA000-memory.dmp
memory/3988-25-0x0000000005DA0000-0x0000000005DBE000-memory.dmp
memory/3988-24-0x00000000052C0000-0x00000000052CA000-memory.dmp
memory/3988-22-0x00000000052E0000-0x00000000052F0000-memory.dmp
memory/3988-21-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/3988-17-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4944-10-0x0000000006EB0000-0x0000000006F5A000-memory.dmp
memory/4944-11-0x0000000006B60000-0x0000000006B9A000-memory.dmp
memory/4944-1-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/4944-9-0x0000000005760000-0x0000000005770000-memory.dmp
memory/4944-8-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/4944-20-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/4944-7-0x0000000006B00000-0x0000000006B1E000-memory.dmp
memory/4944-6-0x0000000006BA0000-0x0000000006C3C000-memory.dmp
memory/4944-5-0x0000000005560000-0x000000000556A000-memory.dmp
memory/4944-4-0x0000000005760000-0x0000000005770000-memory.dmp
memory/4944-3-0x00000000055B0000-0x0000000005642000-memory.dmp
memory/4944-2-0x0000000005AC0000-0x0000000006064000-memory.dmp
memory/4944-0-0x00000000009D0000-0x0000000000B60000-memory.dmp