nanocore | eae12859dd9ff05cdf4ec2e72767bfa22f5c8158fe6c6ca1c2ad08cedd56703b

General

Target

eae12859dd9ff05cdf4ec2e72767bfa22f5c8158fe6c6ca1c2ad08cedd56703bN.exe
Size

255KB
MD5

9e7d29680627ccaf649596980e4b12d0
SHA1

62c0576e387dad2b124045e499d6f7bedfda4a7c
SHA256

eae12859dd9ff05cdf4ec2e72767bfa22f5c8158fe6c6ca1c2ad08cedd56703b
SHA512

82f7f5fc011de415461cb119bacc343dceb26e24500c84e7bbc49b7ffe9eca602d22757f801d47df92ed94897f71c1c17083a57bdaed7924ba1fda0cdc8895e8
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ+Kyf:EeGUA5YZazpXUmZhlKyf

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	eae12859dd9ff05cdf4ec2e72767bfa22f5c8158fe6c6ca1c2ad08cedd56703bN.exe

Executes dropped EXE 2 IoCs

pid	Process
4196	a1punf5t2of.exe
4656	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"	eae12859dd9ff05cdf4ec2e72767bfa22f5c8158fe6c6ca1c2ad08cedd56703bN.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 4196 set thread context of 4656	4196	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	eae12859dd9ff05cdf4ec2e72767bfa22f5c8158fe6c6ca1c2ad08cedd56703bN.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
4656	a1punf5t2of.exe
4656	a1punf5t2of.exe
4656	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4656	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4656	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4460 wrote to memory of 4196	4460	eae12859dd9ff05cdf4ec2e72767bfa22f5c8158fe6c6ca1c2ad08cedd56703bN.exe	96
PID 4460 wrote to memory of 4196	4460	eae12859dd9ff05cdf4ec2e72767bfa22f5c8158fe6c6ca1c2ad08cedd56703bN.exe	96
PID 4460 wrote to memory of 4196	4460	eae12859dd9ff05cdf4ec2e72767bfa22f5c8158fe6c6ca1c2ad08cedd56703bN.exe	96
PID 4196 wrote to memory of 4656	4196	a1punf5t2of.exe	97
PID 4196 wrote to memory of 4656	4196	a1punf5t2of.exe	97
PID 4196 wrote to memory of 4656	4196	a1punf5t2of.exe	97
PID 4196 wrote to memory of 4656	4196	a1punf5t2of.exe	97
PID 4196 wrote to memory of 4656	4196	a1punf5t2of.exe	97
PID 4196 wrote to memory of 4656	4196	a1punf5t2of.exe	97
PID 4196 wrote to memory of 4656	4196	a1punf5t2of.exe	97
PID 4196 wrote to memory of 4656	4196	a1punf5t2of.exe	97

C:\Users\Admin\AppData\Local\Temp\eae12859dd9ff05cdf4ec2e72767bfa22f5c8158fe6c6ca1c2ad08cedd56703bN.exe
"C:\Users\Admin\AppData\Local\Temp\eae12859dd9ff05cdf4ec2e72767bfa22f5c8158fe6c6ca1c2ad08cedd56703bN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4460
- 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:4196
- - 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:4656

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
c3c499daaa9685f0e0381d06fc224be5

SHA1
bba62d116ad3c1ac3038bcc3d6de67753a555a88

SHA256
f07b8f5ee01403f18600597f24d3baea20e0256f5a111dae3cc6c8866196efe1

SHA512
82202d10ddde407d0866e5b2951f8b59cb4213e3f74bda80c72014521da0b8128d330e583c275be937e282871a9d69023bb4a4617a077bed6408e9e45a244c91

Download Submit
memory/4196-40-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4196-27-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4196-26-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4196-25-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4196-23-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4196-24-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4196-21-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4460-6-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4460-7-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4460-0-0x0000000074672000-0x0000000074673000-memory.dmp

Filesize
4KB

Download
memory/4460-22-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4460-5-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4460-4-0x0000000074672000-0x0000000074673000-memory.dmp

Filesize
4KB

Download
memory/4460-3-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4460-2-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4460-1-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4656-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4656-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4656-33-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4656-35-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4656-34-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4656-37-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4656-38-0x0000000074670000-0x0000000074C21000-memory.dmp

Filesize
5.7MB

Download
memory/4656-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4656-41-0x0000000074670000-0x0000000074C21000-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