nanocore | 474e4734dd09b236acb386ce87b3d23dc6d0d454fafc7ed102331eb60bf22a92

General

Target

474e4734dd09b236acb386ce87b3d23dc6d0d454fafc7ed102331eb60bf22a92.exe
Size

279KB
MD5

32e5a1745367b1438cf7ff31614152b8
SHA1

e6024ef3832fef7da80e81ba15e74ce9091fa048
SHA256

474e4734dd09b236acb386ce87b3d23dc6d0d454fafc7ed102331eb60bf22a92
SHA512

5891cda3dd20c6adfc79fa8d874ee1e0c4b51e895178f24a22abad86263a3fdc6f9a7ffb23dc6167bd4d79ec2d7665bd9277614f8d1a32fe16d8d7820f318b32
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fZ:boSeGUA5YZazpXUmZhZ6B

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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	474e4734dd09b236acb386ce87b3d23dc6d0d454fafc7ed102331eb60bf22a92.exe

Executes dropped EXE 2 IoCs

pid	Process
3404	a1punf5t2of.exe
2000	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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	474e4734dd09b236acb386ce87b3d23dc6d0d454fafc7ed102331eb60bf22a92.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 3404 set thread context of 2000	3404	a1punf5t2of.exe	85

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	474e4734dd09b236acb386ce87b3d23dc6d0d454fafc7ed102331eb60bf22a92.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
2000	a1punf5t2of.exe
2000	a1punf5t2of.exe
2000	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2000	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2000	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3248 wrote to memory of 3404	3248	474e4734dd09b236acb386ce87b3d23dc6d0d454fafc7ed102331eb60bf22a92.exe	84
PID 3248 wrote to memory of 3404	3248	474e4734dd09b236acb386ce87b3d23dc6d0d454fafc7ed102331eb60bf22a92.exe	84
PID 3248 wrote to memory of 3404	3248	474e4734dd09b236acb386ce87b3d23dc6d0d454fafc7ed102331eb60bf22a92.exe	84
PID 3404 wrote to memory of 2000	3404	a1punf5t2of.exe	85
PID 3404 wrote to memory of 2000	3404	a1punf5t2of.exe	85
PID 3404 wrote to memory of 2000	3404	a1punf5t2of.exe	85
PID 3404 wrote to memory of 2000	3404	a1punf5t2of.exe	85
PID 3404 wrote to memory of 2000	3404	a1punf5t2of.exe	85
PID 3404 wrote to memory of 2000	3404	a1punf5t2of.exe	85
PID 3404 wrote to memory of 2000	3404	a1punf5t2of.exe	85
PID 3404 wrote to memory of 2000	3404	a1punf5t2of.exe	85

C:\Users\Admin\AppData\Local\Temp\474e4734dd09b236acb386ce87b3d23dc6d0d454fafc7ed102331eb60bf22a92.exe
"C:\Users\Admin\AppData\Local\Temp\474e4734dd09b236acb386ce87b3d23dc6d0d454fafc7ed102331eb60bf22a92.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3248
- 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:3404
- - 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:2000

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
280KB

MD5
1a17c992ed38e584b7671ec94b256112

SHA1
d5da054206cfe330399710f6755e2933a6185fe1

SHA256
984a3e301b60fc2bb13ae55a36c24eb147ef5179e74173995565c85fbfe4d749

SHA512
f46dfe37387e7d76db9a33ee82dc60b8ad75f9d6001bf249f41751740c24efe4e223b9a336a93d77be6996c927b7852ee36767d678084f06b3dda8201573bfbe

Download Submit
memory/2000-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2000-41-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/2000-38-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/2000-37-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/2000-34-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/2000-35-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/2000-33-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/2000-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2000-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3248-6-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/3248-0-0x00000000746B2000-0x00000000746B3000-memory.dmp

Filesize
4KB

Download
memory/3248-1-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/3248-2-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/3248-3-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/3248-4-0x00000000746B2000-0x00000000746B3000-memory.dmp

Filesize
4KB

Download
memory/3248-21-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/3248-5-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/3248-7-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/3404-26-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/3404-22-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/3404-27-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/3404-24-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/3404-25-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/3404-40-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download
memory/3404-23-0x00000000746B0000-0x0000000074C61000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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