nanocore | eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71

General

Target

eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe
Size

255KB
MD5

6ac11ef18f6858f5eda62f89d8e76520
SHA1

d1022830359f969e997db901392ac6041862157c
SHA256

eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71
SHA512

15bb7482e659dedd38c339888fd748936643f8ac420a5b318e79152080b77ec72efa13f46eac7619f3db0054f40ede5dea75cf24813f67a8e07c31d4b4a9851c
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ+Kk:EeGUA5YZazpXUmZhlKk

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe

Executes dropped EXE 2 IoCs

pid	Process
3604	a1punf5t2of.exe
4296	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.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 3604 set thread context of 4296	3604	a1punf5t2of.exe	98

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	eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4296	a1punf5t2of.exe
4296	a1punf5t2of.exe
4296	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4296	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4296	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3372 wrote to memory of 3604	3372	eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe	97
PID 3372 wrote to memory of 3604	3372	eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe	97
PID 3372 wrote to memory of 3604	3372	eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe	97
PID 3604 wrote to memory of 4296	3604	a1punf5t2of.exe	98
PID 3604 wrote to memory of 4296	3604	a1punf5t2of.exe	98
PID 3604 wrote to memory of 4296	3604	a1punf5t2of.exe	98
PID 3604 wrote to memory of 4296	3604	a1punf5t2of.exe	98
PID 3604 wrote to memory of 4296	3604	a1punf5t2of.exe	98
PID 3604 wrote to memory of 4296	3604	a1punf5t2of.exe	98
PID 3604 wrote to memory of 4296	3604	a1punf5t2of.exe	98
PID 3604 wrote to memory of 4296	3604	a1punf5t2of.exe	98

C:\Users\Admin\AppData\Local\Temp\eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe
"C:\Users\Admin\AppData\Local\Temp\eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3372
- 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:3604
- - 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:4296

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
255KB

MD5
76376c2deca85f7f83c1a66f911fe1f5

SHA1
badcad2bfcd25393ae0fb309ea830e1c4f80ff21

SHA256
dd2452079a8f3bb06d357a1b48e722745c8f9e6a0da9654e6e39f2cf8e42718a

SHA512
4a0ebeabf441b972d212bd0a5511956689d47c921920026f742df75caae0f052c636d6868299abb596fb57fe01a562c40500d2527f6a33d076abc86ceffa3564

Download Submit
memory/3372-21-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/3372-1-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/3372-2-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/3372-3-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/3372-4-0x0000000074932000-0x0000000074933000-memory.dmp

Filesize
4KB

Download
memory/3372-5-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/3372-6-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/3372-7-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/3372-0-0x0000000074932000-0x0000000074933000-memory.dmp

Filesize
4KB

Download
memory/3604-26-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/3604-24-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/3604-23-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/3604-25-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/3604-22-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/3604-27-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/3604-41-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-33-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4296-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4296-34-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-35-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-37-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-38-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-39-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4296-42-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-43-0x0000000074930000-0x0000000074EE1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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