nanocore | e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870

General

Target

Ok7YvjlVmDJI9ajz.exe
Size

831KB
MD5

f9f3ee35f62eba494f4f755850617a85
SHA1

2f01785e036cb476d67249bef9881b0116912309
SHA256

e49189557147abb38b584bb167b436947cde7bcea7ab44815ebc44c4f21e1870
SHA512

6a44351b520b9a6869b695d1fe31aadd73dc099358ada5ace0882d883b94ff83ae990b247fb68f9cbb09f12f8bacc3202e5f4a0c90a4c2bad218254d263a97e9
SSDEEP

24576:zq0qvumN3gUCTcpVfFBbsuYqwnB5t7UG4DL:zqwmtgUZpVgpqwn17eDL

Score

10^/10

nanocore discovery evasion execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

66.63.187.113:1664

Mutex

a376f716-2f77-4943-a431-3a3bcb53b7c0

Attributes

activate_away_mode
true
backup_connection_host
66.63.187.113
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-08-05T03:49:33.827385136Z
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
1664
default_group
CAT
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
a376f716-2f77-4943-a431-3a3bcb53b7c0
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
66.63.187.113
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
Nanocore family
nanocore
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

1920 powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Ok7YvjlVmDJI9ajz.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\SCSI Host = "C:\\Program Files (x86)\\SCSI Host\\scsihost.exe"	Ok7YvjlVmDJI9ajz.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Ok7YvjlVmDJI9ajz.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Ok7YvjlVmDJI9ajz.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

Ok7YvjlVmDJI9ajz.exe

description pid process target process

PID 1976 set thread context of 2080 1976 Ok7YvjlVmDJI9ajz.exe Ok7YvjlVmDJI9ajz.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Ok7YvjlVmDJI9ajz.exe

description	pid	process	target process
PID 1976 set thread context of 2080	1976	Ok7YvjlVmDJI9ajz.exe	Ok7YvjlVmDJI9ajz.exe

Drops file in Program Files directory 2 IoCs

Processes:

Ok7YvjlVmDJI9ajz.exe

description	ioc	process
File created	C:\Program Files (x86)\SCSI Host\scsihost.exe	Ok7YvjlVmDJI9ajz.exe
File opened for modification	C:\Program Files (x86)\SCSI Host\scsihost.exe	Ok7YvjlVmDJI9ajz.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

Ok7YvjlVmDJI9ajz.exeOk7YvjlVmDJI9ajz.exepowershell.exeschtasks.exeschtasks.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ok7YvjlVmDJI9ajz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ok7YvjlVmDJI9ajz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exeschtasks.exe

pid process

2668 schtasks.exe
2736 schtasks.exe

pid	process
2668	schtasks.exe
2736	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

powershell.exeOk7YvjlVmDJI9ajz.exe

pid	process
1920	powershell.exe
2080	Ok7YvjlVmDJI9ajz.exe
2080	Ok7YvjlVmDJI9ajz.exe
2080	Ok7YvjlVmDJI9ajz.exe
2080	Ok7YvjlVmDJI9ajz.exe
2080	Ok7YvjlVmDJI9ajz.exe
2080	Ok7YvjlVmDJI9ajz.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Ok7YvjlVmDJI9ajz.exe

pid process

2080 Ok7YvjlVmDJI9ajz.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeOk7YvjlVmDJI9ajz.exe

description pid process

Token: SeDebugPrivilege 1920 powershell.exe
Token: SeDebugPrivilege 2080 Ok7YvjlVmDJI9ajz.exe

pid	process
2080	Ok7YvjlVmDJI9ajz.exe

description	pid	process
Token: SeDebugPrivilege	1920	powershell.exe
Token: SeDebugPrivilege	2080	Ok7YvjlVmDJI9ajz.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

Ok7YvjlVmDJI9ajz.exeOk7YvjlVmDJI9ajz.exe

description	pid	process	target process
PID 1976 wrote to memory of 1920	1976	Ok7YvjlVmDJI9ajz.exe	powershell.exe
PID 1976 wrote to memory of 1920	1976	Ok7YvjlVmDJI9ajz.exe	powershell.exe
PID 1976 wrote to memory of 1920	1976	Ok7YvjlVmDJI9ajz.exe	powershell.exe
PID 1976 wrote to memory of 1920	1976	Ok7YvjlVmDJI9ajz.exe	powershell.exe
PID 1976 wrote to memory of 2080	1976	Ok7YvjlVmDJI9ajz.exe	Ok7YvjlVmDJI9ajz.exe
PID 1976 wrote to memory of 2080	1976	Ok7YvjlVmDJI9ajz.exe	Ok7YvjlVmDJI9ajz.exe
PID 1976 wrote to memory of 2080	1976	Ok7YvjlVmDJI9ajz.exe	Ok7YvjlVmDJI9ajz.exe
PID 1976 wrote to memory of 2080	1976	Ok7YvjlVmDJI9ajz.exe	Ok7YvjlVmDJI9ajz.exe
PID 1976 wrote to memory of 2080	1976	Ok7YvjlVmDJI9ajz.exe	Ok7YvjlVmDJI9ajz.exe
PID 1976 wrote to memory of 2080	1976	Ok7YvjlVmDJI9ajz.exe	Ok7YvjlVmDJI9ajz.exe
PID 1976 wrote to memory of 2080	1976	Ok7YvjlVmDJI9ajz.exe	Ok7YvjlVmDJI9ajz.exe
PID 1976 wrote to memory of 2080	1976	Ok7YvjlVmDJI9ajz.exe	Ok7YvjlVmDJI9ajz.exe
PID 1976 wrote to memory of 2080	1976	Ok7YvjlVmDJI9ajz.exe	Ok7YvjlVmDJI9ajz.exe
PID 2080 wrote to memory of 2668	2080	Ok7YvjlVmDJI9ajz.exe	schtasks.exe
PID 2080 wrote to memory of 2668	2080	Ok7YvjlVmDJI9ajz.exe	schtasks.exe
PID 2080 wrote to memory of 2668	2080	Ok7YvjlVmDJI9ajz.exe	schtasks.exe
PID 2080 wrote to memory of 2668	2080	Ok7YvjlVmDJI9ajz.exe	schtasks.exe
PID 2080 wrote to memory of 2736	2080	Ok7YvjlVmDJI9ajz.exe	schtasks.exe
PID 2080 wrote to memory of 2736	2080	Ok7YvjlVmDJI9ajz.exe	schtasks.exe
PID 2080 wrote to memory of 2736	2080	Ok7YvjlVmDJI9ajz.exe	schtasks.exe
PID 2080 wrote to memory of 2736	2080	Ok7YvjlVmDJI9ajz.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\Ok7YvjlVmDJI9ajz.exe
"C:\Users\Admin\AppData\Local\Temp\Ok7YvjlVmDJI9ajz.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Ok7YvjlVmDJI9ajz.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1920
- C:\Users\Admin\AppData\Local\Temp\Ok7YvjlVmDJI9ajz.exe
  "C:\Users\Admin\AppData\Local\Temp\Ok7YvjlVmDJI9ajz.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2080
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SCSI Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA2E.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2668
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SCSI Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA8D.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA2E.tmp

Filesize
1KB

MD5
4ea138cb2ecf2fb5b38438dc3c790f80

SHA1
f55256f73ff2494340ae15f1f23c90909b1ebfc6

SHA256
10af088172232024fd1594dee8fbc0522db89e96ff82c0cb18cedee05f313e34

SHA512
ee08429536718fc194cc5a18a591b2d87874dbcff3782e689f8a3572d7c14b3cd3c16c1f755970cc8057fa8a486988bacc90f8b1e26007004a54ee0542cd4139

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA8D.tmp

Filesize
1KB

MD5
9a559f229be0944bc3dc813cde333f50

SHA1
0e97c97eea032b499ff060e799581e32beeceb09

SHA256
a63d853679aa655cced3b62a10855c56f9efd9b50770738b408d728008f73330

SHA512
4cbb2f77283500e86ecf79fd2cbd31d10c3af2fcf6c9a557ee0b1edead229dc07d63a5030b60df57458d52ef8c2a42ec199d2d4cdca387400d047df25b593c68

Download Submit
memory/1976-23-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/1976-1-0x0000000000DC0000-0x0000000000E96000-memory.dmp

Filesize
856KB

Download
memory/1976-2-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/1976-3-0x000000007411E000-0x000000007411F000-memory.dmp

Filesize
4KB

Download
memory/1976-4-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/1976-5-0x0000000000960000-0x000000000097C000-memory.dmp

Filesize
112KB

Download
memory/1976-6-0x00000000004C0000-0x000000000053A000-memory.dmp

Filesize
488KB

Download
memory/1976-0-0x000000007411E000-0x000000007411F000-memory.dmp

Filesize
4KB

Download
memory/2080-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2080-35-0x0000000000640000-0x000000000064A000-memory.dmp

Filesize
40KB

Download
memory/2080-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2080-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2080-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2080-22-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2080-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2080-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2080-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2080-33-0x0000000000610000-0x000000000061A000-memory.dmp

Filesize
40KB

Download
memory/2080-34-0x0000000000620000-0x000000000063E000-memory.dmp

Filesize
120KB

Download
memory/2080-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2080-38-0x0000000000730000-0x0000000000742000-memory.dmp

Filesize
72KB

Download
memory/2080-39-0x0000000000BE0000-0x0000000000BFA000-memory.dmp

Filesize
104KB

Download
memory/2080-40-0x0000000000CC0000-0x0000000000CCE000-memory.dmp

Filesize
56KB

Download
memory/2080-42-0x0000000000D30000-0x0000000000D3E000-memory.dmp

Filesize
56KB

Download
memory/2080-41-0x0000000000D10000-0x0000000000D22000-memory.dmp

Filesize
72KB

Download
memory/2080-44-0x00000000042F0000-0x0000000004300000-memory.dmp

Filesize
64KB

Download
memory/2080-43-0x00000000042E0000-0x00000000042F4000-memory.dmp

Filesize
80KB

Download
memory/2080-45-0x0000000004300000-0x0000000004314000-memory.dmp

Filesize
80KB

Download
memory/2080-47-0x0000000004400000-0x000000000442E000-memory.dmp

Filesize
184KB

Download
memory/2080-46-0x0000000004310000-0x000000000431E000-memory.dmp

Filesize
56KB

Download
memory/2080-48-0x00000000043B0000-0x00000000043C4000-memory.dmp

Filesize
80KB

Download
memory/2080-50-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads