nanocore | 27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c

General

Target

27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe
Size

1.3MB
MD5

909f968c11e83770506c0ad6c929dea2
SHA1

bcf5d1c8d07a180050ccbf03b1e44535f49457b1
SHA256

27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c
SHA512

ba0b26e670ffcac8a84ef8ea29cffe75e52d8f19125e8dfcbb6f752603140c1ee4579c2885c7ac0e94d16ac1afec616128fbdef24d73dbf5157b7bb5c1c9d448

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.209.85.183:7177

Mutex

b71a0adb-7ce7-4106-a93d-2705c786b7ee

Attributes

activate_away_mode
true
backup_connection_host
185.209.85.183
backup_dns_server
buffer_size
65535
build_time
2017-12-14T13:00:20.665131736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
7177
default_group
CRYTED SOUNDS
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
b71a0adb-7ce7-4106-a93d-2705c786b7ee
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
185.209.85.183
primary_dns_server
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\WPA Subsystem = "C:\\Program Files (x86)\\WPA Subsystem\\wpass.exe"	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.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	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1344 set thread context of 1588	1344	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe	28

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WPA Subsystem\wpass.exe	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe
File opened for modification	C:\Program Files (x86)\WPA Subsystem\wpass.exe	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1588	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe
1588	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1588	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1588	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1344	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1344 wrote to memory of 1588	1344	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe	28
PID 1344 wrote to memory of 1588	1344	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe	28
PID 1344 wrote to memory of 1588	1344	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe	28
PID 1344 wrote to memory of 1588	1344	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe	28
PID 1344 wrote to memory of 1588	1344	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe	28
PID 1344 wrote to memory of 1588	1344	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe	28
PID 1344 wrote to memory of 1588	1344	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe	28
PID 1344 wrote to memory of 1588	1344	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe	28
PID 1344 wrote to memory of 1588	1344	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe	28
PID 1344 wrote to memory of 1588	1344	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe	28
PID 1344 wrote to memory of 1588	1344	27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe	28

C:\Users\Admin\AppData\Local\Temp\27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe
"C:\Users\Admin\AppData\Local\Temp\27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1344
- C:\Users\Admin\AppData\Local\Temp\27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe
  "C:\Users\Admin\AppData\Local\Temp\27d6ceedf47e31db2db7d71f182b047725e4cda7d7620e8033d7a1687daed93c.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:1588

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1344-56-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1344-57-0x0000000076171000-0x0000000076173000-memory.dmp

Filesize
8KB

Download
memory/1588-58-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1588-61-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1588-63-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1588-64-0x0000000074850000-0x0000000074DFB000-memory.dmp

Filesize
5.7MB

Download
memory/1588-65-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1588-66-0x0000000074850000-0x0000000074DFB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing