nanocore | 3af4a8119c6a81501ce0487b0f0d89adc2c3824a8744528504f48a4676f06583

General

Target

3af4a8119c6a81501ce0487b0f0d89adc2c3824a8744528504f48a4676f06583.exe
Size

282KB
MD5

f22a5d8e301c2f5624c1919300e0500f
SHA1

c96e1247c992f3db06c9f620b6472694b842f61f
SHA256

3af4a8119c6a81501ce0487b0f0d89adc2c3824a8744528504f48a4676f06583
SHA512

65881ef5aedd24702a05b06041001f2b958c5374dacd781d9ece49fa2c76fff4a30ac63955e105e70d8c16769dd7374db8b5031c80421cc9d05fd5e1925250b2
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfpY:boSeGUA5YZazpXUmZhZ6SD

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

Processes:

3af4a8119c6a81501ce0487b0f0d89adc2c3824a8744528504f48a4676f06583.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	3af4a8119c6a81501ce0487b0f0d89adc2c3824a8744528504f48a4676f06583.exe

Executes dropped EXE 2 IoCs

Processes:

a1punf5t2of.exea1punf5t2of.exe

pid	Process
2320	a1punf5t2of.exe
3356	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

3af4a8119c6a81501ce0487b0f0d89adc2c3824a8744528504f48a4676f06583.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	3af4a8119c6a81501ce0487b0f0d89adc2c3824a8744528504f48a4676f06583.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

a1punf5t2of.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

a1punf5t2of.exe

description	pid	Process	procid_target
PID 2320 set thread context of 3356	2320	a1punf5t2of.exe	90

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

Processes:

3af4a8119c6a81501ce0487b0f0d89adc2c3824a8744528504f48a4676f06583.exea1punf5t2of.exea1punf5t2of.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3af4a8119c6a81501ce0487b0f0d89adc2c3824a8744528504f48a4676f06583.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

Processes:

a1punf5t2of.exe

pid	Process
3356	a1punf5t2of.exe
3356	a1punf5t2of.exe
3356	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid	Process
3356	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description	pid	Process
Token: SeDebugPrivilege	3356	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

3af4a8119c6a81501ce0487b0f0d89adc2c3824a8744528504f48a4676f06583.exea1punf5t2of.exe

description	pid	Process	procid_target
PID 1668 wrote to memory of 2320	1668	3af4a8119c6a81501ce0487b0f0d89adc2c3824a8744528504f48a4676f06583.exe	87
PID 1668 wrote to memory of 2320	1668	3af4a8119c6a81501ce0487b0f0d89adc2c3824a8744528504f48a4676f06583.exe	87
PID 1668 wrote to memory of 2320	1668	3af4a8119c6a81501ce0487b0f0d89adc2c3824a8744528504f48a4676f06583.exe	87
PID 2320 wrote to memory of 3356	2320	a1punf5t2of.exe	90
PID 2320 wrote to memory of 3356	2320	a1punf5t2of.exe	90
PID 2320 wrote to memory of 3356	2320	a1punf5t2of.exe	90
PID 2320 wrote to memory of 3356	2320	a1punf5t2of.exe	90
PID 2320 wrote to memory of 3356	2320	a1punf5t2of.exe	90
PID 2320 wrote to memory of 3356	2320	a1punf5t2of.exe	90
PID 2320 wrote to memory of 3356	2320	a1punf5t2of.exe	90
PID 2320 wrote to memory of 3356	2320	a1punf5t2of.exe	90

C:\Users\Admin\AppData\Local\Temp\3af4a8119c6a81501ce0487b0f0d89adc2c3824a8744528504f48a4676f06583.exe
"C:\Users\Admin\AppData\Local\Temp\3af4a8119c6a81501ce0487b0f0d89adc2c3824a8744528504f48a4676f06583.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1668
- 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:2320
- - 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:3356

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
282KB

MD5
bc1258e8b2ea2c920559691e8ea099ba

SHA1
68f3245e38cc534601f002f7b09300d93c68b7fb

SHA256
f1bd9e07f79bf77b83406fc52385035116f930e005f34dbaa3be43b42071dae4

SHA512
2de66ebe4c9fc75d50a6f9ff0d1b8bc8f4a1b8c1d0c184622ac180728fb5c1e2eb09dd9319e1b538bd50946468e6e155748c7345a8a636292767e9ebd66a5f11

Download Submit
memory/1668-21-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/1668-1-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/1668-2-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/1668-3-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/1668-4-0x00000000746A2000-0x00000000746A3000-memory.dmp

Filesize
4KB

Download
memory/1668-5-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/1668-6-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/1668-7-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/1668-0-0x00000000746A2000-0x00000000746A3000-memory.dmp

Filesize
4KB

Download
memory/2320-26-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/2320-23-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/2320-24-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/2320-25-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/2320-22-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/2320-27-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/2320-42-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/3356-33-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/3356-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3356-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3356-35-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/3356-34-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/3356-37-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/3356-38-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/3356-39-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/3356-40-0x00000000746A0000-0x0000000074C51000-memory.dmp

Filesize
5.7MB

Download
memory/3356-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3356-43-0x00000000746A0000-0x0000000074C51000-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