nanocore | 305eb08e59ef7e93a40e6eb8edf0c4a336ff54bfc07cac69d1744c949f53757e

General

Target
HLCUJK1200426084 INV 2097430962.exe
Size 504KB
Sample201109-bblvtn2ew6
SHA256 305eb08e59ef7e93a40e6eb8edf0c4a336ff54bfc07cac69d1744c949f53757e
MD5 cf593bb4945ab19851e82c0c854cdcef
SHA1 434f090315532907b68298d9083b3363c94a0497
SHA512 f1acde98ab1c98edac34df2240aa5479201721eb998ad0794a9a305e89932b46f0d6c873b6711a9eb36f0421f414bb7e6cee197e3db8bb3e92606f7c29033b2f
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

adikaremix.linkpc.net:1790
185.140.53.13:1790

Mutex

9493864b-27d9-4410-9dcc-9a0c4732a1d5

Attributes

activate_away_mode
true
backup_connection_host
185.140.53.13
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-21T11:14:38.887176036Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1790
default_group
June@@
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
9493864b-27d9-4410-9dcc-9a0c4732a1d5
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
adikaremix.linkpc.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.
keylogger trojan stealer spyware nanocore

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Manager = "C:\\Program Files (x86)\\SMTP Manager\\smtpmgr.exe"	HLCUJK1200426084 INV 2097430962.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	HLCUJK1200426084 INV 2097430962.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3336 set thread context of 3088	3336	HLCUJK1200426084 INV 2097430962.exe	80

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SMTP Manager\smtpmgr.exe	HLCUJK1200426084 INV 2097430962.exe
File opened for modification	C:\Program Files (x86)\SMTP Manager\smtpmgr.exe	HLCUJK1200426084 INV 2097430962.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2172	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3336	HLCUJK1200426084 INV 2097430962.exe
3336	HLCUJK1200426084 INV 2097430962.exe
3336	HLCUJK1200426084 INV 2097430962.exe
3088	HLCUJK1200426084 INV 2097430962.exe
3088	HLCUJK1200426084 INV 2097430962.exe
3088	HLCUJK1200426084 INV 2097430962.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3088	HLCUJK1200426084 INV 2097430962.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3336	HLCUJK1200426084 INV 2097430962.exe
Token: SeDebugPrivilege	3088	HLCUJK1200426084 INV 2097430962.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3336 wrote to memory of 2172	3336	HLCUJK1200426084 INV 2097430962.exe	78
PID 3336 wrote to memory of 2172	3336	HLCUJK1200426084 INV 2097430962.exe	78
PID 3336 wrote to memory of 2172	3336	HLCUJK1200426084 INV 2097430962.exe	78
PID 3336 wrote to memory of 3088	3336	HLCUJK1200426084 INV 2097430962.exe	80
PID 3336 wrote to memory of 3088	3336	HLCUJK1200426084 INV 2097430962.exe	80
PID 3336 wrote to memory of 3088	3336	HLCUJK1200426084 INV 2097430962.exe	80
PID 3336 wrote to memory of 3088	3336	HLCUJK1200426084 INV 2097430962.exe	80
PID 3336 wrote to memory of 3088	3336	HLCUJK1200426084 INV 2097430962.exe	80
PID 3336 wrote to memory of 3088	3336	HLCUJK1200426084 INV 2097430962.exe	80
PID 3336 wrote to memory of 3088	3336	HLCUJK1200426084 INV 2097430962.exe	80
PID 3336 wrote to memory of 3088	3336	HLCUJK1200426084 INV 2097430962.exe	80

C:\Users\Admin\AppData\Local\Temp\HLCUJK1200426084 INV 2097430962.exe
"C:\Users\Admin\AppData\Local\Temp\HLCUJK1200426084 INV 2097430962.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3336
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JHZJuwQmU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp181D.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2172
- C:\Users\Admin\AppData\Local\Temp\HLCUJK1200426084 INV 2097430962.exe
  "{path}"
  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
  PID:3088