nanocore | 5b27db23756f4ddbd30a3875e30cdbff6cdcc1650a46e3c5a032da6f85cfdceb

General

Target
wndll.exe
Size 310KB
Sample200630-wapmqvr6ee
SHA256 5b27db23756f4ddbd30a3875e30cdbff6cdcc1650a46e3c5a032da6f85cfdceb
MD5 4e0966f48e6fe2451eae96f7696dcab9
SHA1 f37c0ca9db58a784cf77712bcfaa6cf18233b495
SHA512 19eb88285c79a199ae9ff0ccc2696973185b66f1b7bf06a6b9c4aebb269eb0da71e37a39017403e4b66adbd4071911febe08dd44e3f8c0f4adb10dfe661e9b9f
MD5 SHA1 SHA512

Score

10^/10

evasion trojan keylogger stealer spyware nanocore

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

gold1.dnsupdate.info:4777
gold080.ooguy.com:4777

Mutex

de1252d0-fd95-4cdc-abb5-7b12ebb4706f

Attributes

activate_away_mode
true
backup_connection_host
gold080.ooguy.com
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-04-10T22:11:42.883905836Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
4777
default_group
TMT
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
de1252d0-fd95-4cdc-abb5-7b12ebb4706f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
gold1.dnsupdate.info
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

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	wndll.exe
Token: SeDebugPrivilege	1784	svhost.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1668	wndll.exe
1668	wndll.exe
1784	svhost.exe
1784	svhost.exe
1784	svhost.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 1784	1668	wndll.exe	24
PID 1668 wrote to memory of 1784	1668	wndll.exe	24
PID 1668 wrote to memory of 1784	1668	wndll.exe	24
PID 1668 wrote to memory of 1784	1668	wndll.exe	24
PID 1668 wrote to memory of 1784	1668	wndll.exe	24
PID 1668 wrote to memory of 1784	1668	wndll.exe	24
PID 1668 wrote to memory of 1784	1668	wndll.exe	24
PID 1668 wrote to memory of 1784	1668	wndll.exe	24
PID 1668 wrote to memory of 1784	1668	wndll.exe	24
PID 1668 wrote to memory of 1872	1668	wndll.exe	25
PID 1668 wrote to memory of 1872	1668	wndll.exe	25
PID 1668 wrote to memory of 1872	1668	wndll.exe	25
PID 1668 wrote to memory of 1872	1668	wndll.exe	25
PID 1668 wrote to memory of 1924	1668	wndll.exe	27
PID 1668 wrote to memory of 1924	1668	wndll.exe	27
PID 1668 wrote to memory of 1924	1668	wndll.exe	27
PID 1668 wrote to memory of 1924	1668	wndll.exe	27

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1668 set thread context of 1784	1668	wndll.exe	24

Executes dropped EXE 1 IoCs

pid	Process
1784	svhost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1784	svhost.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\name.exe.lnk	wndll.exe

Loads dropped DLL 3 IoCs

pid	Process
1668	wndll.exe
1668	wndll.exe
1668	wndll.exe

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe:Zone.Identifier	cmd.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	svhost.exe

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

C:\Users\Admin\AppData\Local\Temp\wndll.exe
"C:\Users\Admin\AppData\Local\Temp\wndll.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
- Drops startup file
- Loads dropped DLL
PID:1668
- C:\Users\Admin\AppData\Local\Temp\svhost.exe
  "C:\Users\Admin\AppData\Local\Temp\svhost.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  - Executes dropped EXE
  - Suspicious behavior: GetForegroundWindowSpam
  - Checks whether UAC is enabled
  PID:1784
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:/Users/Admin/AppData/Local/Temp/wndll.exe" "%temp%\FolderN\name.exe" /Y
  2⤵
  PID:1872
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > %temp%\FolderN\name.exe:Zone.Identifier
  2⤵
  - NTFS ADS
  PID:1924

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1784-1-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1784-4-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1784-5-0x0000000000400000-0x0000000000438000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads