nanocore | c0753f40f4fa6114ee66f0d510621bf95d3e84291890edfd1569f0ab424abe74

General

Target

c0753f40f4fa6114ee66f0d510621bf95d3e84291890edfd1569f0ab424abe74N.exe
Size

279KB
MD5

21cfd36473c33e96a2ed3acd2296e3e0
SHA1

ec97618dea69d83cd4c9d0f170ab3af90208300a
SHA256

c0753f40f4fa6114ee66f0d510621bf95d3e84291890edfd1569f0ab424abe74
SHA512

703caf050e28444d83ca06ebfbddf4be96746acf7167bd5d5b5ea58fd14a151f28c72b8f78d309f25ce9343777621251bebe5e4a733ea758fd44882d11dc8b92
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fViV:boSeGUA5YZazpXUmZhZ6NiV

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	c0753f40f4fa6114ee66f0d510621bf95d3e84291890edfd1569f0ab424abe74N.exe

Executes dropped EXE 2 IoCs

pid	Process
2924	a1punf5t2of.exe
2024	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	c0753f40f4fa6114ee66f0d510621bf95d3e84291890edfd1569f0ab424abe74N.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	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2924 set thread context of 2024	2924	a1punf5t2of.exe	97

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c0753f40f4fa6114ee66f0d510621bf95d3e84291890edfd1569f0ab424abe74N.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2024	a1punf5t2of.exe
2024	a1punf5t2of.exe
2024	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2024	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2024	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 2924	1832	c0753f40f4fa6114ee66f0d510621bf95d3e84291890edfd1569f0ab424abe74N.exe	96
PID 1832 wrote to memory of 2924	1832	c0753f40f4fa6114ee66f0d510621bf95d3e84291890edfd1569f0ab424abe74N.exe	96
PID 1832 wrote to memory of 2924	1832	c0753f40f4fa6114ee66f0d510621bf95d3e84291890edfd1569f0ab424abe74N.exe	96
PID 2924 wrote to memory of 2024	2924	a1punf5t2of.exe	97
PID 2924 wrote to memory of 2024	2924	a1punf5t2of.exe	97
PID 2924 wrote to memory of 2024	2924	a1punf5t2of.exe	97
PID 2924 wrote to memory of 2024	2924	a1punf5t2of.exe	97
PID 2924 wrote to memory of 2024	2924	a1punf5t2of.exe	97
PID 2924 wrote to memory of 2024	2924	a1punf5t2of.exe	97
PID 2924 wrote to memory of 2024	2924	a1punf5t2of.exe	97
PID 2924 wrote to memory of 2024	2924	a1punf5t2of.exe	97

C:\Users\Admin\AppData\Local\Temp\c0753f40f4fa6114ee66f0d510621bf95d3e84291890edfd1569f0ab424abe74N.exe
"C:\Users\Admin\AppData\Local\Temp\c0753f40f4fa6114ee66f0d510621bf95d3e84291890edfd1569f0ab424abe74N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1832
- 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:2924
- - 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:2024

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
279KB

MD5
d2cd0252a985cefcfce93c7bafb7ef31

SHA1
013f60f65e1b16da0a9ff9c5dee8d50d0fe891c6

SHA256
6651314a03856c7948ce5fd0126c3a4807ec67aff97a347e4484bb7d122d4399

SHA512
57bd3cf23716160717d9ba37596481bc4a64e4db5fd2fc8e9de7ab6a961e6e78f89b3160866e86f166b93337887c0e6410ace32f03f327d3fd891fa785738a7b

Download Submit
memory/1832-22-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/1832-1-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/1832-2-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/1832-3-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/1832-4-0x0000000074732000-0x0000000074733000-memory.dmp

Filesize
4KB

Download
memory/1832-5-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/1832-6-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/1832-7-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/1832-0-0x0000000074732000-0x0000000074733000-memory.dmp

Filesize
4KB

Download
memory/2024-33-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2024-34-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2024-40-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2024-37-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2024-36-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2024-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2024-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2024-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2024-32-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2924-21-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2924-23-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2924-26-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2924-25-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2924-39-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2924-24-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads