nanocore | fd198cf3ef764ffa17e7bd465d666057804a25ed5c6061074c0de7b6df43a667

Analysis

max time kernel
141s
max time network
168s
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

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General

Target

3020571d24ad91e5aabd74a3c92f5014ee1f3aa8805d066e34a9289b4325d75f.exe
Size

418KB
MD5

c157899ac1cd17ceb52c43b403dbf647
SHA1

85036f05dc58d68c8f9dca29a2a69a1e8b55b08d
SHA256

3020571d24ad91e5aabd74a3c92f5014ee1f3aa8805d066e34a9289b4325d75f
SHA512

95d9bed3103191c765d67a4babc57538e0e490c9a354fddeb351f541253cef5af3a23f223ac7453a51a4f8952d99ef0e91b8bdedcb15f9bfa888e305fe51811a
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUwbvh:ITNYrnE3bm/CiejewY5vXJ

Score

10^/10

nanocore defense_evasion discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

[email protected]:46218

178.32.224.116:46218

Mutex

4af74541-e3f1-469c-8af7-efe4071b81cf

Attributes

activate_away_mode
false
backup_connection_host
178.32.224.116
backup_dns_server
buffer_size
65535
build_time
2018-07-28T12:59:38.488799236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
46218
default_group
tourex
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
4af74541-e3f1-469c-8af7-efe4071b81cf
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
[email protected]
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	3020571d24ad91e5aabd74a3c92f5014ee1f3aa8805d066e34a9289b4325d75f.exe

Executes dropped EXE 1 IoCs

pid	Process
2904	ximo2ubzn1i.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\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	3020571d24ad91e5aabd74a3c92f5014ee1f3aa8805d066e34a9289b4325d75f.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	regasm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2904 set thread context of 4168	2904	ximo2ubzn1i.exe	90

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	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3020571d24ad91e5aabd74a3c92f5014ee1f3aa8805d066e34a9289b4325d75f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4168	regasm.exe
4168	regasm.exe
4168	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4168	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4168	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3488 wrote to memory of 2904	3488	3020571d24ad91e5aabd74a3c92f5014ee1f3aa8805d066e34a9289b4325d75f.exe	89
PID 3488 wrote to memory of 2904	3488	3020571d24ad91e5aabd74a3c92f5014ee1f3aa8805d066e34a9289b4325d75f.exe	89
PID 3488 wrote to memory of 2904	3488	3020571d24ad91e5aabd74a3c92f5014ee1f3aa8805d066e34a9289b4325d75f.exe	89
PID 2904 wrote to memory of 4168	2904	ximo2ubzn1i.exe	90
PID 2904 wrote to memory of 4168	2904	ximo2ubzn1i.exe	90
PID 2904 wrote to memory of 4168	2904	ximo2ubzn1i.exe	90
PID 2904 wrote to memory of 4168	2904	ximo2ubzn1i.exe	90
PID 2904 wrote to memory of 4168	2904	ximo2ubzn1i.exe	90
PID 2904 wrote to memory of 4168	2904	ximo2ubzn1i.exe	90
PID 2904 wrote to memory of 4168	2904	ximo2ubzn1i.exe	90
PID 2904 wrote to memory of 4168	2904	ximo2ubzn1i.exe	90

C:\Users\Admin\AppData\Local\Temp\3020571d24ad91e5aabd74a3c92f5014ee1f3aa8805d066e34a9289b4325d75f.exe
"C:\Users\Admin\AppData\Local\Temp\3020571d24ad91e5aabd74a3c92f5014ee1f3aa8805d066e34a9289b4325d75f.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3488
- C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
  "C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2904
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
    3⤵
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:4168

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

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Downloads

C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
418KB

MD5
8b3d258a71c46c0fd6d199c7087eb7be

SHA1
cef2a1d6df4110fea557d46f51efae105bd4b229

SHA256
e4cb9d6d66bf243ee4ce4ecea63ef1947b43f34bca59dac94e7947e5650a6e51

SHA512
13d23f61483134c03c314493d6b860a9d998c6d6f82dfafd62523babd5090a59bdf16b3708a4154255fe74a5fa9e06d2b045d46adf9a3e3645ddbc06e52a37fb

Download Submit
memory/2904-35-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/2904-33-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/2904-22-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/2904-20-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/3488-4-0x0000000002660000-0x000000000266A000-memory.dmp

Filesize
40KB

Download
memory/3488-6-0x0000000004D60000-0x0000000004D9C000-memory.dmp

Filesize
240KB

Download
memory/3488-0-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/3488-21-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/3488-5-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/3488-3-0x0000000004AC0000-0x0000000004B52000-memory.dmp

Filesize
584KB

Download
memory/3488-1-0x0000000000060000-0x00000000000CE000-memory.dmp

Filesize
440KB

Download
memory/3488-2-0x0000000005240000-0x00000000057E4000-memory.dmp

Filesize
5.6MB

Download
memory/4168-28-0x00000000050F0000-0x000000000518C000-memory.dmp

Filesize
624KB

Download
memory/4168-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4168-27-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4168-30-0x00000000050D0000-0x00000000050DA000-memory.dmp

Filesize
40KB

Download
memory/4168-31-0x0000000005D60000-0x0000000005D7E000-memory.dmp

Filesize
120KB

Download
memory/4168-32-0x0000000005470000-0x000000000547A000-memory.dmp

Filesize
40KB

Download
memory/4168-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4168-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4168-36-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download