nanocore | d74c11bb7581f8340ecc093c08ef0d83a72ae86003e20e703791033fcf29f32e

General

Target

d74c11bb7581f8340ecc093c08ef0d83a72ae86003e20e703791033fcf29f32e.exe
Size

254KB
MD5

ac44a581840726435486ba9533062c1c
SHA1

844193c83883c8477baddfb2b9980bf9830ba5b7
SHA256

d74c11bb7581f8340ecc093c08ef0d83a72ae86003e20e703791033fcf29f32e
SHA512

8cbdc08b92a8ebecd9d0ff646d81b41cc62732863e87152097f2720f12ce21a03039d8ffe6755cf148ddb37d59dc7e57840e285802fd117b2f8ce998793f8cff
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQpW:EeGUA5YZazpXUmZhiW

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sysupdate24.ddns.net:45400

Mutex

ae82ab7f-db07-49ee-9d2b-76075d76f37f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
buffer_size
65535
build_time
2020-04-24T17:41:53.492468936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
45400
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
ae82ab7f-db07-49ee-9d2b-76075d76f37f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
sysupdate24.ddns.net
primary_dns_server
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.
keylogger trojan stealer spyware nanocore
Nanocore family
nanocore

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

d74c11bb7581f8340ecc093c08ef0d83a72ae86003e20e703791033fcf29f32e.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	d74c11bb7581f8340ecc093c08ef0d83a72ae86003e20e703791033fcf29f32e.exe

Executes dropped EXE 2 IoCs

Processes:

a1punf5t2of.exea1punf5t2of.exe

pid	Process
3452	a1punf5t2of.exe
4184	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

d74c11bb7581f8340ecc093c08ef0d83a72ae86003e20e703791033fcf29f32e.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	d74c11bb7581f8340ecc093c08ef0d83a72ae86003e20e703791033fcf29f32e.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

a1punf5t2of.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

a1punf5t2of.exe

description	pid	Process	procid_target
PID 3452 set thread context of 4184	3452	a1punf5t2of.exe	96

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 3 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:

d74c11bb7581f8340ecc093c08ef0d83a72ae86003e20e703791033fcf29f32e.exea1punf5t2of.exea1punf5t2of.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d74c11bb7581f8340ecc093c08ef0d83a72ae86003e20e703791033fcf29f32e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

a1punf5t2of.exe

pid	Process
4184	a1punf5t2of.exe
4184	a1punf5t2of.exe
4184	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid	Process
4184	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description	pid	Process
Token: SeDebugPrivilege	4184	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

d74c11bb7581f8340ecc093c08ef0d83a72ae86003e20e703791033fcf29f32e.exea1punf5t2of.exe

description	pid	Process	procid_target
PID 4420 wrote to memory of 3452	4420	d74c11bb7581f8340ecc093c08ef0d83a72ae86003e20e703791033fcf29f32e.exe	95
PID 4420 wrote to memory of 3452	4420	d74c11bb7581f8340ecc093c08ef0d83a72ae86003e20e703791033fcf29f32e.exe	95
PID 4420 wrote to memory of 3452	4420	d74c11bb7581f8340ecc093c08ef0d83a72ae86003e20e703791033fcf29f32e.exe	95
PID 3452 wrote to memory of 4184	3452	a1punf5t2of.exe	96
PID 3452 wrote to memory of 4184	3452	a1punf5t2of.exe	96
PID 3452 wrote to memory of 4184	3452	a1punf5t2of.exe	96
PID 3452 wrote to memory of 4184	3452	a1punf5t2of.exe	96
PID 3452 wrote to memory of 4184	3452	a1punf5t2of.exe	96
PID 3452 wrote to memory of 4184	3452	a1punf5t2of.exe	96
PID 3452 wrote to memory of 4184	3452	a1punf5t2of.exe	96
PID 3452 wrote to memory of 4184	3452	a1punf5t2of.exe	96

C:\Users\Admin\AppData\Local\Temp\d74c11bb7581f8340ecc093c08ef0d83a72ae86003e20e703791033fcf29f32e.exe
"C:\Users\Admin\AppData\Local\Temp\d74c11bb7581f8340ecc093c08ef0d83a72ae86003e20e703791033fcf29f32e.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4420
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3452
- - C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
    "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:4184

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Filesize
254KB

MD5
919094201a3ca62657ae2ad14e30ba97

SHA1
446f88b433f63c0df9751a8695a85d7e17d8d342

SHA256
c145de595dca8fc2e5bfcf9847ead4a0b1d5cfe7a5506b2bb5d3579c93ed3d18

SHA512
a6216b677b7d1b4b4b39a6630b2f88b759c548ed98cc3a310ebefd2fd3f8dd7f16f02b3bbd2912d2bb46c7206fdac15501740b6807fc9692d26bc53c057be232

Download Submit
memory/3452-41-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/3452-27-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/3452-26-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/3452-25-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/3452-23-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/3452-24-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/3452-21-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4184-35-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4184-33-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4184-43-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4184-42-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4184-39-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4184-38-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4184-37-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4184-34-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4184-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4184-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4184-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4420-4-0x0000000074D72000-0x0000000074D73000-memory.dmp

Filesize
4KB

Download
memory/4420-2-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4420-0-0x0000000074D72000-0x0000000074D73000-memory.dmp

Filesize
4KB

Download
memory/4420-3-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4420-7-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4420-22-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4420-1-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4420-5-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download
memory/4420-6-0x0000000074D70000-0x0000000075321000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads