nanocore | 259ba413245d2567c60ec2556a795d6c9f315c740fc850a1b9d71b09af96d062

General

Target

259ba413245d2567c60ec2556a795d6c9f315c740fc850a1b9d71b09af96d062N.exe
Size

219KB
MD5

c3c406e228e391c9aa61c69749b42bf0
SHA1

ff918d0cd69f17ff5a324ec37e186a20b5194df6
SHA256

259ba413245d2567c60ec2556a795d6c9f315c740fc850a1b9d71b09af96d062
SHA512

15aa884f29ab1e6e5e43ca8fd3b49b35df26d43393fe120f69e8b5fbcf2a3301584ac96694669f14f06ae48f26ca0fd2be70fee2893cb2b6d699f55cd0688471
SSDEEP

6144:wyoZBJVsaVG6o9DYn3ZQ8n2Y7Rj0qzwe5Trq7ex:wF9+a86GDOXnF3zPTG7

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

10.9.0.62:54984

Mutex

3fd3a823-5c0e-4221-9672-0d2e5f5ef7e9

Attributes

activate_away_mode
true
backup_connection_host
10.9.0.62
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-08-24T18:09:45.735575136Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
54984
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
3fd3a823-5c0e-4221-9672-0d2e5f5ef7e9
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
primary_dns_server
8.8.8.8
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 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	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4424 set thread context of 2420	4424	259ba413245d2567c60ec2556a795d6c9f315c740fc850a1b9d71b09af96d062N.exe	95

System Location Discovery: System Language Discovery 1 TTPs 2 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	259ba413245d2567c60ec2556a795d6c9f315c740fc850a1b9d71b09af96d062N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2420	RegAsm.exe
2420	RegAsm.exe
2420	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2420	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2420	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4424 wrote to memory of 2420	4424	259ba413245d2567c60ec2556a795d6c9f315c740fc850a1b9d71b09af96d062N.exe	95
PID 4424 wrote to memory of 2420	4424	259ba413245d2567c60ec2556a795d6c9f315c740fc850a1b9d71b09af96d062N.exe	95
PID 4424 wrote to memory of 2420	4424	259ba413245d2567c60ec2556a795d6c9f315c740fc850a1b9d71b09af96d062N.exe	95
PID 4424 wrote to memory of 2420	4424	259ba413245d2567c60ec2556a795d6c9f315c740fc850a1b9d71b09af96d062N.exe	95
PID 4424 wrote to memory of 2420	4424	259ba413245d2567c60ec2556a795d6c9f315c740fc850a1b9d71b09af96d062N.exe	95
PID 4424 wrote to memory of 2420	4424	259ba413245d2567c60ec2556a795d6c9f315c740fc850a1b9d71b09af96d062N.exe	95
PID 4424 wrote to memory of 2420	4424	259ba413245d2567c60ec2556a795d6c9f315c740fc850a1b9d71b09af96d062N.exe	95
PID 4424 wrote to memory of 2420	4424	259ba413245d2567c60ec2556a795d6c9f315c740fc850a1b9d71b09af96d062N.exe	95

C:\Users\Admin\AppData\Local\Temp\259ba413245d2567c60ec2556a795d6c9f315c740fc850a1b9d71b09af96d062N.exe
"C:\Users\Admin\AppData\Local\Temp\259ba413245d2567c60ec2556a795d6c9f315c740fc850a1b9d71b09af96d062N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4424
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:2420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2420-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2420-20-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/2420-19-0x0000000006210000-0x000000000621A000-memory.dmp

Filesize
40KB

Download
memory/2420-18-0x0000000005FF0000-0x000000000600E000-memory.dmp

Filesize
120KB

Download
memory/2420-17-0x00000000054E0000-0x00000000054EA000-memory.dmp

Filesize
40KB

Download
memory/2420-15-0x0000000005350000-0x00000000053EC000-memory.dmp

Filesize
624KB

Download
memory/2420-14-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4424-8-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4424-0-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/4424-9-0x0000000005270000-0x00000000052AC000-memory.dmp

Filesize
240KB

Download
memory/4424-10-0x0000000005380000-0x000000000539E000-memory.dmp

Filesize
120KB

Download
memory/4424-7-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/4424-13-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4424-6-0x0000000005300000-0x0000000005376000-memory.dmp

Filesize
472KB

Download
memory/4424-5-0x0000000005030000-0x000000000503A000-memory.dmp

Filesize
40KB

Download
memory/4424-4-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4424-3-0x0000000005070000-0x0000000005102000-memory.dmp

Filesize
584KB

Download
memory/4424-2-0x0000000005580000-0x0000000005B24000-memory.dmp

Filesize
5.6MB

Download
memory/4424-1-0x00000000005F0000-0x000000000062E000-memory.dmp

Filesize
248KB

Download

Analysis

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