nanocore | 1b5a9c840d8932be77aa43135038742007e1e1ca5d9b8954966ddedb703a0ee4

General

Target

P1-635487.exe
Size

3.5MB
MD5

540df7784dd16658486dc2caf73ca2a5
SHA1

e203fbc4c4fc05def6784953933dc15c7495f96d
SHA256

1b5a9c840d8932be77aa43135038742007e1e1ca5d9b8954966ddedb703a0ee4
SHA512

e41dcf7c66ba14b39423863975d9cf91e008f67bff103035dd34c6acf113abd84fdb4a72751a060f63852d5a34a17db5f95d77a648515cee15f787da3a0e2cf9
SSDEEP

49152:6Ob699GhOeeYrHhxNg0Dobuh9CYFQqgFClfN8SIP1aJ5+BEh:69vYrdnHSSI4JYBEh

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

arkseven7002.ddns.net:7727

Mutex

10a66da6-234d-4e15-acda-574830a08fca

Attributes

activate_away_mode
true
backup_connection_host
arkseven7002.ddns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-04-18T01:03:25.467183836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
true
connect_delay
4000
connection_port
7727
default_group
BLESSED BOTS
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
10a66da6-234d-4e15-acda-574830a08fca
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
arkseven7002.ddns.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
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

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

P1-635487.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	P1-635487.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

AddInProcess32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Service = "C:\\Program Files (x86)\\UDP Service\\udpsv.exe"	AddInProcess32.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

P1-635487.exe

description pid process target process

PID 2940 set thread context of 2780 2940 P1-635487.exe AddInProcess32.exe

description	pid	process	target process
PID 2940 set thread context of 2780	2940	P1-635487.exe	AddInProcess32.exe

Drops file in Program Files directory 2 IoCs

Processes:

AddInProcess32.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\UDP Service\udpsv.exe	AddInProcess32.exe
File created	C:\Program Files (x86)\UDP Service\udpsv.exe	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

AddInProcess32.exe

pid process

2780 AddInProcess32.exe
2780 AddInProcess32.exe
2780 AddInProcess32.exe
2780 AddInProcess32.exe
2780 AddInProcess32.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AddInProcess32.exe

pid process

2780 AddInProcess32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

AddInProcess32.exe

description pid process

Token: SeDebugPrivilege 2780 AddInProcess32.exe

pid	process
2780	AddInProcess32.exe
2780	AddInProcess32.exe
2780	AddInProcess32.exe
2780	AddInProcess32.exe
2780	AddInProcess32.exe

pid	process
2780	AddInProcess32.exe

description	pid	process
Token: SeDebugPrivilege	2780	AddInProcess32.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

P1-635487.exe

description	pid	process	target process
PID 2940 wrote to memory of 2780	2940	P1-635487.exe	AddInProcess32.exe
PID 2940 wrote to memory of 2780	2940	P1-635487.exe	AddInProcess32.exe
PID 2940 wrote to memory of 2780	2940	P1-635487.exe	AddInProcess32.exe
PID 2940 wrote to memory of 2780	2940	P1-635487.exe	AddInProcess32.exe
PID 2940 wrote to memory of 2780	2940	P1-635487.exe	AddInProcess32.exe
PID 2940 wrote to memory of 2780	2940	P1-635487.exe	AddInProcess32.exe
PID 2940 wrote to memory of 2780	2940	P1-635487.exe	AddInProcess32.exe
PID 2940 wrote to memory of 2780	2940	P1-635487.exe	AddInProcess32.exe
PID 2940 wrote to memory of 2780	2940	P1-635487.exe	AddInProcess32.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

Processes:

P1-635487.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	P1-635487.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr = "1"	P1-635487.exe

C:\Users\Admin\AppData\Local\Temp\P1-635487.exe
"C:\Users\Admin\AppData\Local\Temp\P1-635487.exe"
1⤵
- Disables RegEdit via registry modification
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2940

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2780

Network

MITRE ATT&CK Matrix ATT&CK v13

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

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

memory/2780-0-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2780-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2780-2-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2780-5-0x0000000074C2E000-0x0000000074C2F000-memory.dmp

Filesize
4KB

Download
memory/2780-6-0x0000000074C20000-0x000000007530E000-memory.dmp

Filesize
6.9MB

Download
memory/2780-9-0x00000000003F0000-0x00000000003FA000-memory.dmp

Filesize
40KB

Download
memory/2780-10-0x0000000000700000-0x000000000071E000-memory.dmp

Filesize
120KB

Download
memory/2780-11-0x0000000000550000-0x000000000055A000-memory.dmp

Filesize
40KB

Download
memory/2780-14-0x0000000000760000-0x0000000000772000-memory.dmp

Filesize
72KB

Download
memory/2780-15-0x00000000007C0000-0x00000000007DA000-memory.dmp

Filesize
104KB

Download
memory/2780-16-0x0000000000B40000-0x0000000000B4E000-memory.dmp

Filesize
56KB

Download
memory/2780-18-0x0000000000B70000-0x0000000000B7E000-memory.dmp

Filesize
56KB

Download
memory/2780-17-0x0000000000B60000-0x0000000000B72000-memory.dmp

Filesize
72KB

Download
memory/2780-19-0x0000000000BC0000-0x0000000000BCC000-memory.dmp

Filesize
48KB

Download
memory/2780-20-0x0000000000BD0000-0x0000000000BE4000-memory.dmp

Filesize
80KB

Download
memory/2780-21-0x0000000000BE0000-0x0000000000BF0000-memory.dmp

Filesize
64KB

Download
memory/2780-22-0x0000000000BF0000-0x0000000000C04000-memory.dmp

Filesize
80KB

Download
memory/2780-23-0x0000000000C80000-0x0000000000C8E000-memory.dmp

Filesize
56KB

Download
memory/2780-24-0x0000000000DF0000-0x0000000000E1E000-memory.dmp

Filesize
184KB

Download
memory/2780-25-0x0000000000CE0000-0x0000000000CF4000-memory.dmp

Filesize
80KB

Download
memory/2780-31-0x0000000074C2E000-0x0000000074C2F000-memory.dmp

Filesize
4KB

Download
memory/2780-32-0x0000000074C20000-0x000000007530E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads