nanocore | 5ddf1289ab0bc93ce442ae80a0ba8b4c25d4dfc78fff12da0f41a691c351aa32

General

Target

5857b3931634147a84d0be6e740e75b9.exe
Size

303KB
MD5

5857b3931634147a84d0be6e740e75b9
SHA1

0dd7a7d801fb2592c31a3f4e28e690b0cd90aba4
SHA256

5ddf1289ab0bc93ce442ae80a0ba8b4c25d4dfc78fff12da0f41a691c351aa32
SHA512

39f2b8ad1073ced6a66d5d8c65927bb88360a1d69fd393ae9f0e4af95c1fc27b402834217de64f84663bfc2fb3d37d3d12a670357a135dd8512c4b88c1262511
SSDEEP

6144:PLwZuR5PhoumebQ9bFyXDa9C02TUQ2qeli+Znwo8wJlspsWl8cCE0Y/lxur:kZuR3NmebQ9b2D372qs78wlK+Y/lxur

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

ezemnia3.ddns.net:62335

91.193.75.178:62335

Mutex

954449b5-566c-46fe-92f0-8eb82a7f77b0

Attributes

activate_away_mode
true
backup_connection_host
91.193.75.178
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2023-01-23T18:14:17.620110936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
62335
default_group
Cashout
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
954449b5-566c-46fe-92f0-8eb82a7f77b0
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
ezemnia3.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NAT Service = "C:\\Program Files (x86)\\NAT Service\\natsvc.exe"	aspnet_compiler.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4224 set thread context of 5108	4224	5857b3931634147a84d0be6e740e75b9.exe	86

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\NAT Service\natsvc.exe	aspnet_compiler.exe
File opened for modification	C:\Program Files (x86)\NAT Service\natsvc.exe	aspnet_compiler.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4224	5857b3931634147a84d0be6e740e75b9.exe
4224	5857b3931634147a84d0be6e740e75b9.exe
5108	aspnet_compiler.exe
5108	aspnet_compiler.exe
5108	aspnet_compiler.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5108	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4224	5857b3931634147a84d0be6e740e75b9.exe
Token: SeDebugPrivilege	5108	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4224 wrote to memory of 648	4224	5857b3931634147a84d0be6e740e75b9.exe	85
PID 4224 wrote to memory of 648	4224	5857b3931634147a84d0be6e740e75b9.exe	85
PID 4224 wrote to memory of 648	4224	5857b3931634147a84d0be6e740e75b9.exe	85
PID 4224 wrote to memory of 5108	4224	5857b3931634147a84d0be6e740e75b9.exe	86
PID 4224 wrote to memory of 5108	4224	5857b3931634147a84d0be6e740e75b9.exe	86
PID 4224 wrote to memory of 5108	4224	5857b3931634147a84d0be6e740e75b9.exe	86
PID 4224 wrote to memory of 5108	4224	5857b3931634147a84d0be6e740e75b9.exe	86
PID 4224 wrote to memory of 5108	4224	5857b3931634147a84d0be6e740e75b9.exe	86
PID 4224 wrote to memory of 5108	4224	5857b3931634147a84d0be6e740e75b9.exe	86
PID 4224 wrote to memory of 5108	4224	5857b3931634147a84d0be6e740e75b9.exe	86
PID 4224 wrote to memory of 5108	4224	5857b3931634147a84d0be6e740e75b9.exe	86

C:\Users\Admin\AppData\Local\Temp\5857b3931634147a84d0be6e740e75b9.exe
"C:\Users\Admin\AppData\Local\Temp\5857b3931634147a84d0be6e740e75b9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4224
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:648
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.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:5108

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4224-133-0x000001574C2E0000-0x000001574C330000-memory.dmp

Filesize
320KB

Download
memory/5108-134-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5108-136-0x0000000005600000-0x0000000005BA4000-memory.dmp

Filesize
5.6MB

Download
memory/5108-137-0x0000000004F00000-0x0000000004F92000-memory.dmp

Filesize
584KB

Download
memory/5108-138-0x0000000005050000-0x00000000050EC000-memory.dmp

Filesize
624KB

Download
memory/5108-139-0x0000000004FB0000-0x0000000004FBA000-memory.dmp

Filesize
40KB

Download
memory/5108-142-0x0000000005190000-0x00000000051A0000-memory.dmp

Filesize
64KB

Download
memory/5108-143-0x0000000005190000-0x00000000051A0000-memory.dmp

Filesize
64KB

Download

Analysis

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