nanocore | 1a84b72b5406476c01592b4280823ab4da801383000155e8e809df6508b1dedc

General

Target

af7725b565f71dcbfe2f9bcc60e3f340N.exe
Size

282KB
MD5

af7725b565f71dcbfe2f9bcc60e3f340
SHA1

898d60b932347a63ccf1ec9a01803010fafd4be0
SHA256

1a84b72b5406476c01592b4280823ab4da801383000155e8e809df6508b1dedc
SHA512

0d9767a4ce9cfbd5c7542645e59384814cf45336e5a44ad013b2539b198df168a7003e7fcd7e00cd62f817f30c6d9dd0ac5082a8a490ba28811f0b3dd0eb3cb0
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfjT:boSeGUA5YZazpXUmZhZ6SK

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

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:

af7725b565f71dcbfe2f9bcc60e3f340N.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	af7725b565f71dcbfe2f9bcc60e3f340N.exe

Executes dropped EXE 2 IoCs

Processes:

a1punf5t2of.exea1punf5t2of.exe

pid process

3976 a1punf5t2of.exe
4780 a1punf5t2of.exe

pid	process
3976	a1punf5t2of.exe
4780	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

af7725b565f71dcbfe2f9bcc60e3f340N.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	af7725b565f71dcbfe2f9bcc60e3f340N.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 target process

PID 3976 set thread context of 4780 3976 a1punf5t2of.exe a1punf5t2of.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

description	pid	process	target process
PID 3976 set thread context of 4780	3976	a1punf5t2of.exe	a1punf5t2of.exe

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:

af7725b565f71dcbfe2f9bcc60e3f340N.exea1punf5t2of.exea1punf5t2of.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	af7725b565f71dcbfe2f9bcc60e3f340N.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

4780 a1punf5t2of.exe
4780 a1punf5t2of.exe
4780 a1punf5t2of.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid process

4780 a1punf5t2of.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description pid process

Token: SeDebugPrivilege 4780 a1punf5t2of.exe

pid	process
4780	a1punf5t2of.exe
4780	a1punf5t2of.exe
4780	a1punf5t2of.exe

pid	process
4780	a1punf5t2of.exe

description	pid	process
Token: SeDebugPrivilege	4780	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

af7725b565f71dcbfe2f9bcc60e3f340N.exea1punf5t2of.exe

description	pid	process	target process
PID 2020 wrote to memory of 3976	2020	af7725b565f71dcbfe2f9bcc60e3f340N.exe	a1punf5t2of.exe
PID 2020 wrote to memory of 3976	2020	af7725b565f71dcbfe2f9bcc60e3f340N.exe	a1punf5t2of.exe
PID 2020 wrote to memory of 3976	2020	af7725b565f71dcbfe2f9bcc60e3f340N.exe	a1punf5t2of.exe
PID 3976 wrote to memory of 4780	3976	a1punf5t2of.exe	a1punf5t2of.exe
PID 3976 wrote to memory of 4780	3976	a1punf5t2of.exe	a1punf5t2of.exe
PID 3976 wrote to memory of 4780	3976	a1punf5t2of.exe	a1punf5t2of.exe
PID 3976 wrote to memory of 4780	3976	a1punf5t2of.exe	a1punf5t2of.exe
PID 3976 wrote to memory of 4780	3976	a1punf5t2of.exe	a1punf5t2of.exe
PID 3976 wrote to memory of 4780	3976	a1punf5t2of.exe	a1punf5t2of.exe
PID 3976 wrote to memory of 4780	3976	a1punf5t2of.exe	a1punf5t2of.exe
PID 3976 wrote to memory of 4780	3976	a1punf5t2of.exe	a1punf5t2of.exe

C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.exe
"C:\Users\Admin\AppData\Local\Temp\af7725b565f71dcbfe2f9bcc60e3f340N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2020

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:3976

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:4780

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
282KB

MD5
ecf7c0028a884f2b8b9fa0524d20292e

SHA1
655f1ee7d78372711f6022393e837d5ac98913ab

SHA256
92e60c53706fc1f63ec5755667b11ce8be2df8aafa90437118565f7d8ba955ac

SHA512
d49c257528835235afc0775a5103b0af5c29a927f9f007b235da02ab29bafe687b5b7ea1f76e0b0c5012e0262910f23df7b32cbdbe99e8575388ab3a419c07fa

Download Submit
memory/2020-1-0x0000000074720000-0x0000000074CD1000-memory.dmp

Filesize
5.7MB

Download
memory/2020-2-0x0000000074720000-0x0000000074CD1000-memory.dmp

Filesize
5.7MB

Download
memory/2020-3-0x0000000074720000-0x0000000074CD1000-memory.dmp

Filesize
5.7MB

Download
memory/2020-17-0x0000000074720000-0x0000000074CD1000-memory.dmp

Filesize
5.7MB

Download
memory/2020-0-0x0000000074722000-0x0000000074723000-memory.dmp

Filesize
4KB

Download
memory/3976-31-0x0000000074720000-0x0000000074CD1000-memory.dmp

Filesize
5.7MB

Download
memory/3976-18-0x0000000074720000-0x0000000074CD1000-memory.dmp

Filesize
5.7MB

Download
memory/3976-19-0x0000000074720000-0x0000000074CD1000-memory.dmp

Filesize
5.7MB

Download
memory/3976-20-0x0000000074720000-0x0000000074CD1000-memory.dmp

Filesize
5.7MB

Download
memory/3976-33-0x0000000074720000-0x0000000074CD1000-memory.dmp

Filesize
5.7MB

Download
memory/4780-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4780-26-0x0000000074720000-0x0000000074CD1000-memory.dmp

Filesize
5.7MB

Download
memory/4780-27-0x0000000074720000-0x0000000074CD1000-memory.dmp

Filesize
5.7MB

Download
memory/4780-28-0x0000000074720000-0x0000000074CD1000-memory.dmp

Filesize
5.7MB

Download
memory/4780-30-0x0000000074720000-0x0000000074CD1000-memory.dmp

Filesize
5.7MB

Download
memory/4780-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4780-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4780-34-0x0000000074720000-0x0000000074CD1000-memory.dmp

Filesize
5.7MB

Download
memory/4780-35-0x0000000074720000-0x0000000074CD1000-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