nanocore | 35e26bdbdea45ece8f73ddac192c584868bc55018cd95fcf669695c0f68260d7

Analysis

max time kernel
135s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:18

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

fab48bce3470fcdc7b77131b73cd9db4.exe
Size

916KB
MD5

fab48bce3470fcdc7b77131b73cd9db4
SHA1

621d0c5b4e3268a57578ed32dccd75228fe3fe57
SHA256

fff49706e34b96eb43f5511abebc81549f6c387f5bd40f38e9dedb6da7a5ed80
SHA512

28c983347875ca864a16206206563a8d0da370d387df7abb0cff75834664b432f3d4dfcc1eeb2fe0013ec9942b628a4be2bf8fd47ba779766352bddfdfe52448
SSDEEP

24576:xdtP2cbksTpugRNJI5kFMJF9OWjwjLOjZA:CgqC

Score

10^/10

nanocore discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

91.236.116.142:5888

Mutex

d995ed82-bf13-4043-b564-f5f89f8c5209

Attributes

activate_away_mode
true
backup_connection_host
91.236.116.142
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2017-01-07T03:01:54.729778636Z
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
5888
default_group
Spy
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
d995ed82-bf13-4043-b564-f5f89f8c5209
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
91.236.116.142
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
Nanocore family
nanocore

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Control Panel\International\Geo\Nation	fab48bce3470fcdc7b77131b73cd9db4.exe

Executes dropped EXE 1 IoCs

pid	Process
1808	app.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\app.exe"	fab48bce3470fcdc7b77131b73cd9db4.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1808 set thread context of 4420	1808	app.exe	106

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fab48bce3470fcdc7b77131b73cd9db4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	app.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_compiler.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
5336	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
5888	fab48bce3470fcdc7b77131b73cd9db4.exe
5888	fab48bce3470fcdc7b77131b73cd9db4.exe
5888	fab48bce3470fcdc7b77131b73cd9db4.exe
5888	fab48bce3470fcdc7b77131b73cd9db4.exe
5888	fab48bce3470fcdc7b77131b73cd9db4.exe
5888	fab48bce3470fcdc7b77131b73cd9db4.exe
1808	app.exe
1808	app.exe
1808	app.exe
1808	app.exe
1808	app.exe
1808	app.exe
4420	aspnet_compiler.exe
4420	aspnet_compiler.exe
4420	aspnet_compiler.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4420	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5888	fab48bce3470fcdc7b77131b73cd9db4.exe
Token: SeDebugPrivilege	1808	app.exe
Token: SeDebugPrivilege	4420	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 5888 wrote to memory of 1808	5888	fab48bce3470fcdc7b77131b73cd9db4.exe	99
PID 5888 wrote to memory of 1808	5888	fab48bce3470fcdc7b77131b73cd9db4.exe	99
PID 5888 wrote to memory of 1808	5888	fab48bce3470fcdc7b77131b73cd9db4.exe	99
PID 1808 wrote to memory of 4420	1808	app.exe	106
PID 1808 wrote to memory of 4420	1808	app.exe	106
PID 1808 wrote to memory of 4420	1808	app.exe	106
PID 1808 wrote to memory of 4420	1808	app.exe	106
PID 1808 wrote to memory of 4420	1808	app.exe	106
PID 1808 wrote to memory of 4420	1808	app.exe	106
PID 1808 wrote to memory of 4420	1808	app.exe	106
PID 1808 wrote to memory of 4420	1808	app.exe	106
PID 4420 wrote to memory of 5336	4420	aspnet_compiler.exe	107
PID 4420 wrote to memory of 5336	4420	aspnet_compiler.exe	107
PID 4420 wrote to memory of 5336	4420	aspnet_compiler.exe	107

C:\Users\Admin\AppData\Local\Temp\fab48bce3470fcdc7b77131b73cd9db4.exe
"C:\Users\Admin\AppData\Local\Temp\fab48bce3470fcdc7b77131b73cd9db4.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5888
- C:\Users\Admin\AppData\Roaming\app.exe
  "C:\Users\Admin\AppData\Roaming\app.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1808
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4420
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "WAN Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC30D.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:5336

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC30D.tmp

Filesize
1KB

MD5
d81eb43d26d4511c44151cba2eb45983

SHA1
135c98e039c6ab35d4e9564f15f9c56dc9dbeb9a

SHA256
a72a8f6434d6b0fb904db5adc8cab891d12c53b4ac1435dfd13df51f84a2d4d0

SHA512
b5895c19159d23a8fa312967e47d0855ac6f8f314f8931f54469b0c0079a22e9e00a5eaf6729761f74d54e111454d49813e658243e920a9c3434a5576cdda721

Download Submit
C:\Users\Admin\AppData\Roaming\app.exe

Filesize
925KB

MD5
e7d5757ac0aa4c6b608aceb3d60c16bc

SHA1
db5b4190edc9cd51ca4804b392ee66f92be49dd8

SHA256
a2bbae3e87bb85e1589cc72d173a10e7f272c111b148099846f0843ffac1bfd1

SHA512
942099147d2d474493c93ae2c51e06207f89eaac51dc5eeb0f4bbdfc50b288f91761f3fa6129042278280b54cf14dbf5c1d61731a19671c885d0997322f12373

Download Submit
memory/1808-38-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/1808-33-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/1808-28-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/1808-30-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/1808-31-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/1808-32-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/4420-45-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/4420-37-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/4420-39-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/4420-40-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/4420-35-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5888-2-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/5888-29-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/5888-0-0x00000000748C2000-0x00000000748C3000-memory.dmp

Filesize
4KB

Download
memory/5888-3-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/5888-6-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/5888-5-0x00000000748C2000-0x00000000748C3000-memory.dmp

Filesize
4KB

Download
memory/5888-1-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download
memory/5888-4-0x00000000748C0000-0x0000000074E71000-memory.dmp

Filesize
5.7MB

Download