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

Executes dropped EXE 2 IoCs

pid	Process
2788	a1punf5t2of.exe
2136	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
1656	eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe
2788	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-1-5-21-3692679935-4019334568-335155002-1000\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 2788 set thread context of 2136	2788	a1punf5t2of.exe	30

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	eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.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

pid	Process
2136	a1punf5t2of.exe
2136	a1punf5t2of.exe
2136	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2136	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2136	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 2788	1656	eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe	29
PID 1656 wrote to memory of 2788	1656	eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe	29
PID 1656 wrote to memory of 2788	1656	eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe	29
PID 1656 wrote to memory of 2788	1656	eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe	29
PID 1656 wrote to memory of 2788	1656	eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe	29
PID 1656 wrote to memory of 2788	1656	eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe	29
PID 1656 wrote to memory of 2788	1656	eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe	29
PID 2788 wrote to memory of 2136	2788	a1punf5t2of.exe	30
PID 2788 wrote to memory of 2136	2788	a1punf5t2of.exe	30
PID 2788 wrote to memory of 2136	2788	a1punf5t2of.exe	30
PID 2788 wrote to memory of 2136	2788	a1punf5t2of.exe	30
PID 2788 wrote to memory of 2136	2788	a1punf5t2of.exe	30
PID 2788 wrote to memory of 2136	2788	a1punf5t2of.exe	30
PID 2788 wrote to memory of 2136	2788	a1punf5t2of.exe	30
PID 2788 wrote to memory of 2136	2788	a1punf5t2of.exe	30
PID 2788 wrote to memory of 2136	2788	a1punf5t2of.exe	30
PID 2788 wrote to memory of 2136	2788	a1punf5t2of.exe	30
PID 2788 wrote to memory of 2136	2788	a1punf5t2of.exe	30
PID 2788 wrote to memory of 2136	2788	a1punf5t2of.exe	30

C:\Users\Admin\AppData\Local\Temp\eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe
"C:\Users\Admin\AppData\Local\Temp\eff7e3afe08f3fec6b6eaada8a576480c3456a3dbbc23e5c1a372a1018d7ff71N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2788
- - 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:2136

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

System Information Discovery

2

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

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

Filesize
255KB

MD5
83ed20600b4807c8f2578f3e3eb57cbc

SHA1
4a114308fcaf27de33dac80092ebccee007e184e

SHA256
d7285afd3c0e25d006d7a83543f5b20aeb02312537f0a2cf0f1fa191b531b0e9

SHA512
83b4090171b991b19f49f83d71bad310f659f017e25a3749a8238f24f3b7fb2385a3873505f285b1a9aa4179a8f2aa06841af5a43a3093ebca67ea55353512ea

Download Submit
memory/1656-16-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1656-1-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1656-2-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1656-3-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1656-4-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1656-5-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1656-6-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1656-0-0x00000000747D1000-0x00000000747D2000-memory.dmp

Filesize
4KB

Download
memory/2136-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2136-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2136-34-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2136-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2136-40-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2136-42-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2136-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2136-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2788-22-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2788-15-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2788-17-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2788-21-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2788-20-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2788-19-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2788-18-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2788-44-0x00000000747D0000-0x0000000074D7B000-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