nanocore | adc307aba3a4eb1b0ddc7658189944de7a3072dd5375c2db9ef7ed89394df328

General

Target

18d51054a11a6a436044fe91168fe600N.exe
Size

281KB
MD5

18d51054a11a6a436044fe91168fe600
SHA1

223e4e11f578a219fcad8ee3d6505f7bb7c52a44
SHA256

adc307aba3a4eb1b0ddc7658189944de7a3072dd5375c2db9ef7ed89394df328
SHA512

01d2db8be91743f5c5c93a952fc5523d15cc2f7d39fb14e95e3150552ad5a11fe0e804c12d12937c2a17373f711d34808e93ba4c9ad76220bb6e3782e4626295
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfK:boSeGUA5YZazpXUmZhZ6S3

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

Executes dropped EXE 2 IoCs

pid	Process
2816	a1punf5t2of.exe
2604	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
1448	18d51054a11a6a436044fe91168fe600N.exe
2816	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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	18d51054a11a6a436044fe91168fe600N.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 2816 set thread context of 2604	2816	a1punf5t2of.exe	32

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	18d51054a11a6a436044fe91168fe600N.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
2604	a1punf5t2of.exe
2604	a1punf5t2of.exe
2604	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2604	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2604	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 2816	1448	18d51054a11a6a436044fe91168fe600N.exe	31
PID 1448 wrote to memory of 2816	1448	18d51054a11a6a436044fe91168fe600N.exe	31
PID 1448 wrote to memory of 2816	1448	18d51054a11a6a436044fe91168fe600N.exe	31
PID 1448 wrote to memory of 2816	1448	18d51054a11a6a436044fe91168fe600N.exe	31
PID 1448 wrote to memory of 2816	1448	18d51054a11a6a436044fe91168fe600N.exe	31
PID 1448 wrote to memory of 2816	1448	18d51054a11a6a436044fe91168fe600N.exe	31
PID 1448 wrote to memory of 2816	1448	18d51054a11a6a436044fe91168fe600N.exe	31
PID 2816 wrote to memory of 2604	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2604	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2604	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2604	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2604	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2604	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2604	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2604	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2604	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2604	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2604	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2604	2816	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\18d51054a11a6a436044fe91168fe600N.exe
"C:\Users\Admin\AppData\Local\Temp\18d51054a11a6a436044fe91168fe600N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1448
- 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:2816
- - 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:2604

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
282KB

MD5
e46e57b08c77dc52fc1b7053555bbbf1

SHA1
eb6fdc2723c106fb0e109ccb6ba44e379a7888c7

SHA256
e5d5001a484f5f18b4fe65bb3d80fd6cea18648a4f53266deaa5adf6e3f15de5

SHA512
fa4d6ec1b56b74d9306d4d41bfa8664091ee3cb03760f0e24e540f83ab52111fc05a8282846469d7b89918cc52cc420fa23945dbeaa8ca14e73883cd9885f7ac

Download Submit
memory/1448-12-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1448-1-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1448-2-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1448-3-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1448-0-0x00000000747D1000-0x00000000747D2000-memory.dmp

Filesize
4KB

Download
memory/2604-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2604-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2604-35-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2604-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2604-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2604-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2604-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2604-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2816-14-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2816-15-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2816-13-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2816-37-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2816-38-0x00000000747D0000-0x0000000074D7B000-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