nanocore | 0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e

General

Target

0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe
Size

282KB
MD5

6945ffe26feba8c519674c7b452c8759
SHA1

be199e7cfc61c51df6a3985f4e7f94a581ccec3e
SHA256

0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e
SHA512

04e46e7c71f9dc5e7d414679bb54285cff91c67267b7dc37e8455a43c69dcfbeb0ec1aa8abae4d99e4529b1de32737847cd2eb8ccf025655e65f29a6f66e3046
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfE:boSeGUA5YZazpXUmZhZ6SN

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-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe

Executes dropped EXE 2 IoCs

pid	Process
880	a1punf5t2of.exe
972	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-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.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 880 set thread context of 972	880	a1punf5t2of.exe	95

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	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.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
972	a1punf5t2of.exe
972	a1punf5t2of.exe
972	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
972	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	972	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2060 wrote to memory of 880	2060	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe	93
PID 2060 wrote to memory of 880	2060	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe	93
PID 2060 wrote to memory of 880	2060	0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe	93
PID 880 wrote to memory of 972	880	a1punf5t2of.exe	95
PID 880 wrote to memory of 972	880	a1punf5t2of.exe	95
PID 880 wrote to memory of 972	880	a1punf5t2of.exe	95
PID 880 wrote to memory of 972	880	a1punf5t2of.exe	95
PID 880 wrote to memory of 972	880	a1punf5t2of.exe	95
PID 880 wrote to memory of 972	880	a1punf5t2of.exe	95
PID 880 wrote to memory of 972	880	a1punf5t2of.exe	95
PID 880 wrote to memory of 972	880	a1punf5t2of.exe	95

C:\Users\Admin\AppData\Local\Temp\0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe
"C:\Users\Admin\AppData\Local\Temp\0a1bb8de3b2631c86063f7f7059d49751f87433259b4f8483b77524b327f5b7e.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2060
- 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:880
- - 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:972

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
74a48b9062bcf06ac75cd4b343686b38

SHA1
c522705ca9324c98fc520aeea092e77f0047f478

SHA256
4cb9ef8352071a9add72fe9ad200ded79ce590f3eba4551d2e8989d783e10c75

SHA512
5fff0da240aa60c8cc96c633d3dc4b068d01dfe02ebff75458ae83d195cd7f66a0d8ff88c50548ad0fc2da25f06408213b6510b3ce4193d33b4ab7a383fa751d

Download Submit
memory/880-40-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/880-27-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/880-26-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/880-25-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/880-24-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/880-23-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/880-22-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/972-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/972-34-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/972-41-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/972-38-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/972-37-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/972-35-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/972-33-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/972-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/972-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2060-2-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/2060-0-0x00000000749A2000-0x00000000749A3000-memory.dmp

Filesize
4KB

Download
memory/2060-3-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/2060-4-0x00000000749A2000-0x00000000749A3000-memory.dmp

Filesize
4KB

Download
memory/2060-21-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/2060-5-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/2060-6-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/2060-1-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/2060-7-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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