Analysis
- max time kernel
146s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240220-en - resource tags
- submitted
21/02/2024, 07:04
General
- Target Purchase Order no. 6060000061 & 6062000041.ex.exe
- Size 672KB
- Sample240221-hv4cvsdb69
- SHA256 6a0b8f403b660202a6d599aa998802af71064fa3cdbbc2377b75885149cf1773
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
jmoha66808.ddns.net:5211
-
e1c96193-3c6f-44c4-928b-0e793ca9068c
-
activate_away_mode
true
-
backup_connection_host
jmoha66808.ddns.net
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2023-11-13T10:41:12.993998636Z
-
bypass_user_account_control
false
-
bypass_user_account_control_data
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
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
5211
-
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
e1c96193-3c6f-44c4-928b-0e793ca9068c
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
jmoha66808.ddns.net
-
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
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Purchase Order no. 6060000061 & 6062000041.ex.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order no. 6060000061 & 6062000041.ex.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Purchase Order no. 6060000061 & 6062000041.ex.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order no. 6060000061 & 6062000041.ex.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
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DPI Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8964.tmp"3⤵
- Creates scheduled task(s)
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DPI Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8A11.tmp"3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
Purchase Order no. 6060000061 & 6062000041.ex.exe.log
tmp8964.tmp
tmp8A11.tmp
memory/1148-6-0x0000000005500000-0x0000000005520000-memory.dmp
memory/1148-4-0x0000000005270000-0x0000000005280000-memory.dmp
memory/1148-5-0x0000000005040000-0x000000000504A000-memory.dmp
memory/1148-3-0x0000000005060000-0x00000000050F2000-memory.dmp
memory/1148-7-0x0000000005550000-0x000000000555E000-memory.dmp
memory/1148-8-0x0000000005560000-0x0000000005572000-memory.dmp
memory/1148-9-0x00000000069E0000-0x0000000006A5A000-memory.dmp
memory/1148-10-0x0000000009040000-0x00000000090DC000-memory.dmp
memory/1148-0-0x00000000005D0000-0x000000000067E000-memory.dmp
memory/1148-2-0x0000000005570000-0x0000000005B14000-memory.dmp
memory/1148-1-0x00000000748F0000-0x00000000750A0000-memory.dmp
memory/1148-15-0x00000000748F0000-0x00000000750A0000-memory.dmp
memory/2536-23-0x0000000005750000-0x000000000575A000-memory.dmp
memory/2536-33-0x0000000006B10000-0x0000000006B1C000-memory.dmp
memory/2536-14-0x00000000748F0000-0x00000000750A0000-memory.dmp
memory/2536-11-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2536-24-0x0000000006200000-0x000000000621E000-memory.dmp
memory/2536-25-0x0000000006350000-0x000000000635A000-memory.dmp
memory/2536-28-0x0000000006AA0000-0x0000000006AB2000-memory.dmp
memory/2536-29-0x0000000006AB0000-0x0000000006ACA000-memory.dmp
memory/2536-30-0x0000000006AE0000-0x0000000006AEE000-memory.dmp
memory/2536-31-0x0000000006AF0000-0x0000000006B02000-memory.dmp
memory/2536-32-0x0000000006B00000-0x0000000006B0E000-memory.dmp
memory/2536-16-0x0000000005370000-0x0000000005380000-memory.dmp
memory/2536-34-0x0000000006B20000-0x0000000006B34000-memory.dmp
memory/2536-35-0x0000000006B30000-0x0000000006B40000-memory.dmp
memory/2536-36-0x0000000006B50000-0x0000000006B64000-memory.dmp
memory/2536-37-0x0000000006B70000-0x0000000006B7E000-memory.dmp
memory/2536-38-0x0000000006B80000-0x0000000006BAE000-memory.dmp
memory/2536-39-0x0000000006BC0000-0x0000000006BD4000-memory.dmp
memory/2536-40-0x0000000006DA0000-0x0000000006E06000-memory.dmp
memory/2536-42-0x00000000748F0000-0x00000000750A0000-memory.dmp
memory/2536-43-0x0000000005370000-0x0000000005380000-memory.dmp