nanocore | 4ba298859e61cb9c39d9d4a4d556fe6357ce0901d5d4ac6f78e6e15ced75cccb

General

Target

gunzipped.exe
Size

594KB
MD5

1dc228ba3845e137debb24d881737242
SHA1

00af545608674da686d9d84adf056d1c26d8e0fb
SHA256

4ba298859e61cb9c39d9d4a4d556fe6357ce0901d5d4ac6f78e6e15ced75cccb
SHA512

549bde4f2dd1a5da10d6b4d7c617cf2c70c7123d7139fb9e5aa8373adb044d766ff0003566b094dab27ccfa2c6a13eb52ff2af283a3e641e2c28ee844953679f
SSDEEP

12288:nEBU3YlS/ZYajCjq4HGpMqnm04T9op5Us+9wF9DvmwndDq:EBJQZYaGjVGpRm04Tmpt4wnDx

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

103.167.90.225:4251

tom7.work.gd:4251

Mutex

948c774c-c1d8-4f57-8709-ed674b265adb

Attributes

activate_away_mode
true
backup_connection_host
tom7.work.gd
backup_dns_server
buffer_size
65535
build_time
2023-11-01T19:46:43.902018636Z
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
4251
default_group
Default
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
948c774c-c1d8-4f57-8709-ed674b265adb
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
103.167.90.225
primary_dns_server
tom7.work.gd
request_elevation
true
restart_delay
5000
run_delay
10
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	gunzipped.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4004 set thread context of 1372	4004	gunzipped.exe	96

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/Job

T1053

pid	Process
5084	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4004	gunzipped.exe
4004	gunzipped.exe
1372	gunzipped.exe
1372	gunzipped.exe
1372	gunzipped.exe
1372	gunzipped.exe
1372	gunzipped.exe
1372	gunzipped.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1372	gunzipped.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4004	gunzipped.exe
Token: SeDebugPrivilege	1372	gunzipped.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4004 wrote to memory of 3956	4004	gunzipped.exe	95
PID 4004 wrote to memory of 3956	4004	gunzipped.exe	95
PID 4004 wrote to memory of 3956	4004	gunzipped.exe	95
PID 4004 wrote to memory of 1372	4004	gunzipped.exe	96
PID 4004 wrote to memory of 1372	4004	gunzipped.exe	96
PID 4004 wrote to memory of 1372	4004	gunzipped.exe	96
PID 4004 wrote to memory of 1372	4004	gunzipped.exe	96
PID 4004 wrote to memory of 1372	4004	gunzipped.exe	96
PID 4004 wrote to memory of 1372	4004	gunzipped.exe	96
PID 4004 wrote to memory of 1372	4004	gunzipped.exe	96
PID 4004 wrote to memory of 1372	4004	gunzipped.exe	96
PID 1372 wrote to memory of 5084	1372	gunzipped.exe	98
PID 1372 wrote to memory of 5084	1372	gunzipped.exe	98
PID 1372 wrote to memory of 5084	1372	gunzipped.exe	98

C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
"C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4004
- C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
  "C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"
  2⤵
  PID:3956
- C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
  "C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1372
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4522.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:5084

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4522.tmp

Filesize
1KB

MD5
42f7159e831591530fb8cdd62d4650a6

SHA1
5d951d429a25957ca5fc3be282774f148e2f4f81

SHA256
aac9dd0d2fd0398d7958c31af596794180e27ba287868cb762878fb470da3cc8

SHA512
8439116c6be44e4d1575ea62a7062951605d47af636eb9c292a7e671ebbeee23d14dbb0dae769e87a3ce11877bf41572f7e21a75a0015dbf9d3dfa8b8cc68bbc

Download Submit
memory/1372-30-0x0000000006C20000-0x0000000006C2C000-memory.dmp

Filesize
48KB

Download
memory/1372-34-0x0000000006C70000-0x0000000006C84000-memory.dmp

Filesize
80KB

Download
memory/1372-40-0x0000000074A90000-0x0000000075240000-memory.dmp

Filesize
7.7MB

Download
memory/1372-21-0x0000000005560000-0x000000000556A000-memory.dmp

Filesize
40KB

Download
memory/1372-38-0x0000000006FF0000-0x0000000007056000-memory.dmp

Filesize
408KB

Download
memory/1372-37-0x0000000006CD0000-0x0000000006CE4000-memory.dmp

Filesize
80KB

Download
memory/1372-36-0x0000000006CA0000-0x0000000006CCE000-memory.dmp

Filesize
184KB

Download
memory/1372-22-0x0000000005570000-0x000000000558E000-memory.dmp

Filesize
120KB

Download
memory/1372-35-0x0000000006C90000-0x0000000006C9E000-memory.dmp

Filesize
56KB

Download
memory/1372-26-0x00000000059E0000-0x00000000059F2000-memory.dmp

Filesize
72KB

Download
memory/1372-33-0x0000000006C50000-0x0000000006C60000-memory.dmp

Filesize
64KB

Download
memory/1372-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1372-14-0x0000000074A90000-0x0000000075240000-memory.dmp

Filesize
7.7MB

Download
memory/1372-23-0x00000000059C0000-0x00000000059CA000-memory.dmp

Filesize
40KB

Download
memory/1372-32-0x0000000006C40000-0x0000000006C54000-memory.dmp

Filesize
80KB

Download
memory/1372-31-0x0000000006C30000-0x0000000006C3E000-memory.dmp

Filesize
56KB

Download
memory/1372-29-0x0000000006C10000-0x0000000006C22000-memory.dmp

Filesize
72KB

Download
memory/1372-28-0x0000000006C00000-0x0000000006C0E000-memory.dmp

Filesize
56KB

Download
memory/1372-27-0x0000000006BD0000-0x0000000006BEA000-memory.dmp

Filesize
104KB

Download
memory/4004-10-0x0000000007290000-0x0000000007304000-memory.dmp

Filesize
464KB

Download
memory/4004-15-0x00000000057E0000-0x00000000057F0000-memory.dmp

Filesize
64KB

Download
memory/4004-8-0x0000000005C60000-0x0000000005C68000-memory.dmp

Filesize
32KB

Download
memory/4004-4-0x00000000057E0000-0x00000000057F0000-memory.dmp

Filesize
64KB

Download
memory/4004-0-0x0000000074A90000-0x0000000075240000-memory.dmp

Filesize
7.7MB

Download
memory/4004-1-0x0000000000D90000-0x0000000000E2A000-memory.dmp

Filesize
616KB

Download
memory/4004-16-0x0000000074A90000-0x0000000075240000-memory.dmp

Filesize
7.7MB

Download
memory/4004-11-0x00000000098F0000-0x000000000998C000-memory.dmp

Filesize
624KB

Download
memory/4004-2-0x0000000005D10000-0x00000000062B4000-memory.dmp

Filesize
5.6MB

Download
memory/4004-9-0x0000000005C90000-0x0000000005C9C000-memory.dmp

Filesize
48KB

Download
memory/4004-7-0x0000000074A90000-0x0000000075240000-memory.dmp

Filesize
7.7MB

Download
memory/4004-6-0x0000000005B00000-0x0000000005B18000-memory.dmp

Filesize
96KB

Download
memory/4004-5-0x00000000059D0000-0x00000000059DA000-memory.dmp

Filesize
40KB

Download
memory/4004-3-0x0000000005810000-0x00000000058A2000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads