nanocore | 5656064ae4d3c302be4f376131bce57fa83ba30e94c329f33adb91836d7f4bf8

Analysis

max time kernel
146s
max time network
138s
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, 06:09

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3293f41661f096b9d6839d0389f94416.exe
Size

281KB
MD5

3293f41661f096b9d6839d0389f94416
SHA1

a6859f9404d495fae0d97943cbe1eca18533d88f
SHA256

5184fed556ebc70582af5db9792f111346abab38aa5f022769fbb2b82d64708d
SHA512

4e52d61fc3a1fd2813c86cce57e139dfe22587d97be2eb5beb2f3e2410a0f2aaa0a2a0475ab2f130062b7b7bf3d1a162c375ea7dc3eb5051ad9bd6913d637a20
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66faS:boSeGUA5YZazpXUmZhZ6iS

Score

10^/10

nanocore defense_evasion discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

sysupdate24.ddns.net:45400

Mutex

ae82ab7f-db07-49ee-9d2b-76075d76f37f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
buffer_size
65535
build_time
2020-04-24T17:41:53.492468936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
45400
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
ae82ab7f-db07-49ee-9d2b-76075d76f37f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
sysupdate24.ddns.net
primary_dns_server
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	3293f41661f096b9d6839d0389f94416.exe

Executes dropped EXE 2 IoCs

pid	Process
4404	a1punf5t2of.exe
4728	a1punf5t2of.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\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	3293f41661f096b9d6839d0389f94416.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4404 set thread context of 4728	4404	a1punf5t2of.exe	94

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 3 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	3293f41661f096b9d6839d0389f94416.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4728	a1punf5t2of.exe
4728	a1punf5t2of.exe
4728	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4728	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4728	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3648 wrote to memory of 4404	3648	3293f41661f096b9d6839d0389f94416.exe	88
PID 3648 wrote to memory of 4404	3648	3293f41661f096b9d6839d0389f94416.exe	88
PID 3648 wrote to memory of 4404	3648	3293f41661f096b9d6839d0389f94416.exe	88
PID 4404 wrote to memory of 4728	4404	a1punf5t2of.exe	94
PID 4404 wrote to memory of 4728	4404	a1punf5t2of.exe	94
PID 4404 wrote to memory of 4728	4404	a1punf5t2of.exe	94
PID 4404 wrote to memory of 4728	4404	a1punf5t2of.exe	94
PID 4404 wrote to memory of 4728	4404	a1punf5t2of.exe	94
PID 4404 wrote to memory of 4728	4404	a1punf5t2of.exe	94
PID 4404 wrote to memory of 4728	4404	a1punf5t2of.exe	94
PID 4404 wrote to memory of 4728	4404	a1punf5t2of.exe	94

C:\Users\Admin\AppData\Local\Temp\3293f41661f096b9d6839d0389f94416.exe
"C:\Users\Admin\AppData\Local\Temp\3293f41661f096b9d6839d0389f94416.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3648
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4404
- - C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
    "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:4728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Filesize
281KB

MD5
f0ee1f697b7d3eeba5f1bfd18ffad05a

SHA1
bbad15570649013052359060edb0af38a3b79794

SHA256
47855fe5db4ec967ddb4b3365e8c4d01efbe1cc03039b1a420e8ddf45151e3ab

SHA512
a795048e8238accfc2ae6b4248104a19010507d27793e38270ee5978033fbb0e00aa749736bdce39123425bef2ca6fe18f7708075c105ea0802c86df9a61bce5

Download Submit
memory/3648-21-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/3648-1-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/3648-2-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/3648-3-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/3648-4-0x0000000075222000-0x0000000075223000-memory.dmp

Filesize
4KB

Download
memory/3648-5-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/3648-6-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/3648-7-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/3648-0-0x0000000075222000-0x0000000075223000-memory.dmp

Filesize
4KB

Download
memory/4404-23-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4404-24-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4404-22-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4404-25-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4404-26-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4404-27-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4404-28-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4404-41-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4728-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4728-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4728-34-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4728-35-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4728-36-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4728-38-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4728-39-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4728-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4728-42-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download