nanocore | ad5c7909c7f25a6b62ba1cae86a7de3402151fb46e69a18f8f747cd048d6c364

General

Target

ad5c7909c7f25a6b62ba1cae86a7de3402151fb46e69a18f8f747cd048d6c364.exe
Size

282KB
MD5

384d2f7e3603448b49c85f7fc62c6c2f
SHA1

4f661ae7149bf1b64cb1e82aa4cd451e184a1fe7
SHA256

ad5c7909c7f25a6b62ba1cae86a7de3402151fb46e69a18f8f747cd048d6c364
SHA512

d7d43b4e53f2dd5284a72a5a0943487728eca6913a7dbe62338dcc53751d0a4d00f5f4385889a1a8fd23ea266e606fedffb3fbb784cddb3564822f4ddb17dc9d
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfh:boSeGUA5YZazpXUmZhZ6SY

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	ad5c7909c7f25a6b62ba1cae86a7de3402151fb46e69a18f8f747cd048d6c364.exe

Executes dropped EXE 2 IoCs

pid	Process
3984	a1punf5t2of.exe
2612	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-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	ad5c7909c7f25a6b62ba1cae86a7de3402151fb46e69a18f8f747cd048d6c364.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 3984 set thread context of 2612	3984	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	ad5c7909c7f25a6b62ba1cae86a7de3402151fb46e69a18f8f747cd048d6c364.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
2612	a1punf5t2of.exe
2612	a1punf5t2of.exe
2612	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2612	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2612	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 3984	2596	ad5c7909c7f25a6b62ba1cae86a7de3402151fb46e69a18f8f747cd048d6c364.exe	84
PID 2596 wrote to memory of 3984	2596	ad5c7909c7f25a6b62ba1cae86a7de3402151fb46e69a18f8f747cd048d6c364.exe	84
PID 2596 wrote to memory of 3984	2596	ad5c7909c7f25a6b62ba1cae86a7de3402151fb46e69a18f8f747cd048d6c364.exe	84
PID 3984 wrote to memory of 2612	3984	a1punf5t2of.exe	85
PID 3984 wrote to memory of 2612	3984	a1punf5t2of.exe	85
PID 3984 wrote to memory of 2612	3984	a1punf5t2of.exe	85
PID 3984 wrote to memory of 2612	3984	a1punf5t2of.exe	85
PID 3984 wrote to memory of 2612	3984	a1punf5t2of.exe	85
PID 3984 wrote to memory of 2612	3984	a1punf5t2of.exe	85
PID 3984 wrote to memory of 2612	3984	a1punf5t2of.exe	85
PID 3984 wrote to memory of 2612	3984	a1punf5t2of.exe	85

C:\Users\Admin\AppData\Local\Temp\ad5c7909c7f25a6b62ba1cae86a7de3402151fb46e69a18f8f747cd048d6c364.exe
"C:\Users\Admin\AppData\Local\Temp\ad5c7909c7f25a6b62ba1cae86a7de3402151fb46e69a18f8f747cd048d6c364.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596
- 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:3984
- - 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:2612

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
282KB

MD5
c53b5f2a5f3a6ef3ced6550eca763cb5

SHA1
f9d373f54350a07aa7b94616cc96f2a1cf3a7367

SHA256
7671b1f62dcca1e940a0084779f73355d0c4c4311910d0d1326e08ac9666c7e3

SHA512
3d3bd882e23bb026b9fff40d04a4f86528ed2133fe97e556f85bbd0541aed0be3d95a205ee1cdb1d3e8f87c392f41a8edb1627dbfcfe52f87bc88acff89b496a

Download Submit
memory/2596-0-0x0000000074ED2000-0x0000000074ED3000-memory.dmp

Filesize
4KB

Download
memory/2596-1-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/2596-2-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/2596-16-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/2612-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2612-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2612-25-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/2612-26-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/2612-24-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/2612-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2612-28-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/2612-32-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/2612-33-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/3984-18-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/3984-17-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/3984-29-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/3984-31-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads