nanocore | 4cf15be6ae32fa9b2f3e7664c93952fc458884ca0c8b93f3574b8395d11bca9e

General

Target
4ee59654b68dc17ce9cb6e6ba45d025d.exe
Size 1.0MB
Sample220322-l175sabccn
SHA256 4cf15be6ae32fa9b2f3e7664c93952fc458884ca0c8b93f3574b8395d11bca9e
MD5 4ee59654b68dc17ce9cb6e6ba45d025d
SHA1 fb13710ce5888a6f19f5ec5ea4e137b256d830a4
SHA512 bdb97086c449a4362683efd9cc76f04db965cc16bfb702d4a2187fd075475e6ce3c7cbd2f6604e7bf55258da030b0d75ffd47df0191919242c3ee909fd78b864
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

btmebd.ddns.net:1665

Mutex

997b2c1a-0c4c-4fa2-8ed2-8ee329494ba9

Attributes

activate_away_mode
true
backup_connection_host
btmebd.ddns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-12-24T09:51:42.984641036Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1665
default_group
GOOD
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
997b2c1a-0c4c-4fa2-8ed2-8ee329494ba9
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
btmebd.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
suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
suricata

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\ISS Monitor = "C:\\Program Files (x86)\\ISS Monitor\\issmon.exe"	4ee59654b68dc17ce9cb6e6ba45d025d.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	4ee59654b68dc17ce9cb6e6ba45d025d.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 608 set thread context of 4880	608	4ee59654b68dc17ce9cb6e6ba45d025d.exe	87

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ISS Monitor\issmon.exe	4ee59654b68dc17ce9cb6e6ba45d025d.exe
File opened for modification	C:\Program Files (x86)\ISS Monitor\issmon.exe	4ee59654b68dc17ce9cb6e6ba45d025d.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
4028	schtasks.exe
4296	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4880	4ee59654b68dc17ce9cb6e6ba45d025d.exe
4880	4ee59654b68dc17ce9cb6e6ba45d025d.exe
4880	4ee59654b68dc17ce9cb6e6ba45d025d.exe
4880	4ee59654b68dc17ce9cb6e6ba45d025d.exe
4880	4ee59654b68dc17ce9cb6e6ba45d025d.exe
4880	4ee59654b68dc17ce9cb6e6ba45d025d.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4880	4ee59654b68dc17ce9cb6e6ba45d025d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4880	4ee59654b68dc17ce9cb6e6ba45d025d.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 608 wrote to memory of 4880	608	4ee59654b68dc17ce9cb6e6ba45d025d.exe	87
PID 608 wrote to memory of 4880	608	4ee59654b68dc17ce9cb6e6ba45d025d.exe	87
PID 608 wrote to memory of 4880	608	4ee59654b68dc17ce9cb6e6ba45d025d.exe	87
PID 608 wrote to memory of 4880	608	4ee59654b68dc17ce9cb6e6ba45d025d.exe	87
PID 608 wrote to memory of 4880	608	4ee59654b68dc17ce9cb6e6ba45d025d.exe	87
PID 608 wrote to memory of 4880	608	4ee59654b68dc17ce9cb6e6ba45d025d.exe	87
PID 608 wrote to memory of 4880	608	4ee59654b68dc17ce9cb6e6ba45d025d.exe	87
PID 608 wrote to memory of 4880	608	4ee59654b68dc17ce9cb6e6ba45d025d.exe	87
PID 4880 wrote to memory of 4028	4880	4ee59654b68dc17ce9cb6e6ba45d025d.exe	88
PID 4880 wrote to memory of 4028	4880	4ee59654b68dc17ce9cb6e6ba45d025d.exe	88
PID 4880 wrote to memory of 4028	4880	4ee59654b68dc17ce9cb6e6ba45d025d.exe	88
PID 4880 wrote to memory of 4296	4880	4ee59654b68dc17ce9cb6e6ba45d025d.exe	90
PID 4880 wrote to memory of 4296	4880	4ee59654b68dc17ce9cb6e6ba45d025d.exe	90
PID 4880 wrote to memory of 4296	4880	4ee59654b68dc17ce9cb6e6ba45d025d.exe	90

C:\Users\Admin\AppData\Local\Temp\4ee59654b68dc17ce9cb6e6ba45d025d.exe
"C:\Users\Admin\AppData\Local\Temp\4ee59654b68dc17ce9cb6e6ba45d025d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:608
- C:\Users\Admin\AppData\Local\Temp\4ee59654b68dc17ce9cb6e6ba45d025d.exe
  "C:\Users\Admin\AppData\Local\Temp\4ee59654b68dc17ce9cb6e6ba45d025d.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
  - Suspicious use of WriteProcessMemory
  PID:4880
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ISS Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBEF8.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4028
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ISS Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBFE3.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4296

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/608-133-0x0000000005390000-0x000000000539A000-memory.dmp

Download

memory/608-134-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Download

memory/608-135-0x0000000005340000-0x00000000058E4000-memory.dmp

Download

memory/608-136-0x0000000008F20000-0x0000000008FBC000-memory.dmp

Download

memory/608-130-0x0000000000A20000-0x0000000000B2A000-memory.dmp

Download

memory/608-132-0x00000000053E0000-0x0000000005472000-memory.dmp

Download

memory/608-131-0x00000000058F0000-0x0000000005E94000-memory.dmp

Download

memory/4880-137-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/4880-141-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Download

memory/4880-142-0x00000000053A0000-0x0000000005432000-memory.dmp

Download

memory/4880-143-0x0000000007110000-0x0000000007176000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads