nanocore | 29c3861feead5d99c7d2e4c1a50dd6b29f8ca4d8add002ca8028d2f876abbbeb

General

Target
AUTOTEK-DRAFT.exe
Size 784KB
Sample210812-5zzwl5d5ej
SHA256 29c3861feead5d99c7d2e4c1a50dd6b29f8ca4d8add002ca8028d2f876abbbeb
MD5 2cef208d03ae2f434c85229428c66724
SHA1 e3cb0614661cd3fe70bc4bd245678920e776c9f7
SHA512 bcc3bc8dc71434f8d9561ec8eba5dfedca332de67ef1bd6be0c55fc12abe316561f2212ee34b6fc354da94778281d4d971db8ab11d315aa72422a8286b5f0f85
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

mec.sytes.net:3259

Mutex

9358a53f-433c-42f5-bd3f-14ae4da528cf

Attributes

activate_away_mode
true
backup_connection_host
mec.sytes.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-04-04T14:41:53.527071936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
3259
default_group
Mine
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
9358a53f-433c-42f5-bd3f-14ae4da528cf
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
mec.sytes.net
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

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

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	AUTOTEK-DRAFT.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4444 set thread context of 8	4444	AUTOTEK-DRAFT.exe	82

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
4132	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4444	AUTOTEK-DRAFT.exe
8	AUTOTEK-DRAFT.exe
8	AUTOTEK-DRAFT.exe
8	AUTOTEK-DRAFT.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
8	AUTOTEK-DRAFT.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4444	AUTOTEK-DRAFT.exe
Token: SeDebugPrivilege	8	AUTOTEK-DRAFT.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4444 wrote to memory of 4132	4444	AUTOTEK-DRAFT.exe	80
PID 4444 wrote to memory of 4132	4444	AUTOTEK-DRAFT.exe	80
PID 4444 wrote to memory of 4132	4444	AUTOTEK-DRAFT.exe	80
PID 4444 wrote to memory of 8	4444	AUTOTEK-DRAFT.exe	82
PID 4444 wrote to memory of 8	4444	AUTOTEK-DRAFT.exe	82
PID 4444 wrote to memory of 8	4444	AUTOTEK-DRAFT.exe	82
PID 4444 wrote to memory of 8	4444	AUTOTEK-DRAFT.exe	82
PID 4444 wrote to memory of 8	4444	AUTOTEK-DRAFT.exe	82
PID 4444 wrote to memory of 8	4444	AUTOTEK-DRAFT.exe	82
PID 4444 wrote to memory of 8	4444	AUTOTEK-DRAFT.exe	82
PID 4444 wrote to memory of 8	4444	AUTOTEK-DRAFT.exe	82

C:\Users\Admin\AppData\Local\Temp\AUTOTEK-DRAFT.exe
"C:\Users\Admin\AppData\Local\Temp\AUTOTEK-DRAFT.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4444
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zwiElCA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3F.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4132
- C:\Users\Admin\AppData\Local\Temp\AUTOTEK-DRAFT.exe
  "{path}"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:8

C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
1⤵
PID:5016

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/8-119-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/8-122-0x0000000000E10000-0x0000000000EBE000-memory.dmp

Download

memory/4444-114-0x0000000003030000-0x0000000003031000-memory.dmp

Download

memory/4444-116-0x0000000003031000-0x0000000003032000-memory.dmp

Download

memory/5016-115-0x0000000001B80000-0x0000000001B82000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads