Analysis
- max time kernel
134s - max time network
150s - platform
windows7_x64 - resource
win7v20210408 - submitted
12/05/2021, 10:01
General
- Target INVOIC #CTR 110510H001347.exe
- Size 913KB
- Sample210512-e9pg2esp96
- SHA256 47fcfe4b9687b8ddc8ce16c961d78a9941fa483400898e43cb4b2b8f3863f6d5
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
79.134.225.17:2050
-
127.0.0.1:2050
-
faa60493-d519-4c8d-8ff8-8e7cd20e9967
-
activate_away_mode
true
-
backup_connection_host
127.0.0.1
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2021-02-19T18:34:39.325937936Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
2050
-
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
faa60493-d519-4c8d-8ff8-8e7cd20e9967
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
79.134.225.17
-
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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 9 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\INVOIC #CTR 110510H001347.exe"C:\Users\Admin\AppData\Local\Temp\INVOIC #CTR 110510H001347.exe"1⤵
- 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\VwvbEzxTQmiw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4663.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\INVOIC #CTR 110510H001347.exe"C:\Users\Admin\AppData\Local\Temp\INVOIC #CTR 110510H001347.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\INVOIC #CTR 110510H001347.exe"C:\Users\Admin\AppData\Local\Temp\INVOIC #CTR 110510H001347.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
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1684-59-0x0000000001180000-0x0000000001181000-memory.dmp
memory/1684-61-0x0000000008130000-0x000000000821C000-memory.dmp
memory/1684-62-0x0000000000AB0000-0x0000000000AB1000-memory.dmp
memory/1684-63-0x0000000000440000-0x0000000000444000-memory.dmp
memory/1684-64-0x000000000B990000-0x000000000BA1B000-memory.dmp
memory/1684-65-0x0000000005DE0000-0x0000000005E25000-memory.dmp
memory/1892-73-0x00000000003B0000-0x00000000003B5000-memory.dmp
memory/1892-80-0x0000000000A80000-0x0000000000A87000-memory.dmp
memory/1892-70-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1892-72-0x0000000004F00000-0x0000000004F01000-memory.dmp
memory/1892-74-0x00000000003E0000-0x00000000003F9000-memory.dmp
memory/1892-75-0x00000000003C0000-0x00000000003C3000-memory.dmp
memory/1892-77-0x00000000009A0000-0x00000000009B5000-memory.dmp
memory/1892-76-0x00000000005D0000-0x00000000005DD000-memory.dmp
memory/1892-68-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1892-79-0x0000000000A20000-0x0000000000A2C000-memory.dmp
memory/1892-78-0x00000000009D0000-0x00000000009D6000-memory.dmp
memory/1892-82-0x0000000000AA0000-0x0000000000AAD000-memory.dmp
memory/1892-83-0x0000000000AB0000-0x0000000000AB9000-memory.dmp
memory/1892-81-0x0000000000A90000-0x0000000000A96000-memory.dmp
memory/1892-84-0x0000000000AC0000-0x0000000000ACF000-memory.dmp
memory/1892-86-0x0000000000D70000-0x0000000000D99000-memory.dmp
memory/1892-85-0x0000000000B10000-0x0000000000B1A000-memory.dmp
memory/1892-87-0x0000000000B30000-0x0000000000B3F000-memory.dmp