nanocore | 0c75fb0ac97d20e617011adca1ecaae2f6cf09780b7caabd8332487f1ad9c128

General

Target

0c75fb0ac97d20e617011adca1ecaae2f6cf09780b7caabd8332487f1ad9c128.exe
Size

279KB
MD5

eedddda460dfc7936f3ba44f9f11017e
SHA1

a7b680fec71cb8482b942676717692892a491944
SHA256

0c75fb0ac97d20e617011adca1ecaae2f6cf09780b7caabd8332487f1ad9c128
SHA512

5e419e4ca3785772509ad4fdc7b0e1f3717febcbdb236b1a30b9498e737c51acb4e7a33f2196c13173bd37dd4e61e845862a3177639013376c73b8c1ecfc3e43
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fY:boSeGUA5YZazpXUmZhZ6g

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	0c75fb0ac97d20e617011adca1ecaae2f6cf09780b7caabd8332487f1ad9c128.exe

Executes dropped EXE 2 IoCs

pid	Process
2412	a1punf5t2of.exe
2548	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"	0c75fb0ac97d20e617011adca1ecaae2f6cf09780b7caabd8332487f1ad9c128.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 2412 set thread context of 2548	2412	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	0c75fb0ac97d20e617011adca1ecaae2f6cf09780b7caabd8332487f1ad9c128.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
2548	a1punf5t2of.exe
2548	a1punf5t2of.exe
2548	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2548	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2548	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4944 wrote to memory of 2412	4944	0c75fb0ac97d20e617011adca1ecaae2f6cf09780b7caabd8332487f1ad9c128.exe	90
PID 4944 wrote to memory of 2412	4944	0c75fb0ac97d20e617011adca1ecaae2f6cf09780b7caabd8332487f1ad9c128.exe	90
PID 4944 wrote to memory of 2412	4944	0c75fb0ac97d20e617011adca1ecaae2f6cf09780b7caabd8332487f1ad9c128.exe	90
PID 2412 wrote to memory of 2548	2412	a1punf5t2of.exe	97
PID 2412 wrote to memory of 2548	2412	a1punf5t2of.exe	97
PID 2412 wrote to memory of 2548	2412	a1punf5t2of.exe	97
PID 2412 wrote to memory of 2548	2412	a1punf5t2of.exe	97
PID 2412 wrote to memory of 2548	2412	a1punf5t2of.exe	97
PID 2412 wrote to memory of 2548	2412	a1punf5t2of.exe	97
PID 2412 wrote to memory of 2548	2412	a1punf5t2of.exe	97
PID 2412 wrote to memory of 2548	2412	a1punf5t2of.exe	97

C:\Users\Admin\AppData\Local\Temp\0c75fb0ac97d20e617011adca1ecaae2f6cf09780b7caabd8332487f1ad9c128.exe
"C:\Users\Admin\AppData\Local\Temp\0c75fb0ac97d20e617011adca1ecaae2f6cf09780b7caabd8332487f1ad9c128.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4944
- 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:2412
- - 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:2548

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
279KB

MD5
6dd1c18a1fab961800380b88607c9bc4

SHA1
67650299fed90c49346d3692e5eaadb64ba1d505

SHA256
514881543366934c9c791e8fa1a0005d17cafbac4782ef8d6eb5db4e00b32eec

SHA512
1a205be9458bb22c660b9f2b76d768bc7413c91d76705ed8050ce1ccdfbdb0820433bb71bc51f9f874852edec9e84d3b9f7441e621e90cf2569ec9e4e677b413

Download Submit
memory/2412-40-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2412-27-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2412-26-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2412-25-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2412-21-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2412-24-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2412-23-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2548-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-34-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2548-41-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2548-38-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2548-37-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2548-35-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2548-33-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2548-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4944-2-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/4944-0-0x0000000075122000-0x0000000075123000-memory.dmp

Filesize
4KB

Download
memory/4944-3-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/4944-4-0x0000000075122000-0x0000000075123000-memory.dmp

Filesize
4KB

Download
memory/4944-7-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/4944-5-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/4944-22-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/4944-1-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/4944-6-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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