nanocore | 1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480

Resubmissions

15/09/2026, 11:29

260915-nlkgaatzg1

07/08/2026, 14:21

07/08/2026, 14:20

06/08/2026, 22:19

06/08/2026, 22:01

06/08/2026, 03:44

10/07/2026, 00:11

Analysis

max time kernel
300s
max time network
302s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
07/08/2026, 14:21

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General

Target
1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe
Size 291KB
Sample260807-rn2ecsfm2v
SHA256 1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480
MD5 c97d31e6c4311d688c7de8a19ba9f488
SHA1 2c0aa234321581f6414535e165a832b8cd4a4704
SHA512 62ffa02b28fa3105aa8da596d3f1fa3d26e820909de85e63dc1b539ac02305e08d5e77ec06a462f9864c281d3ff5db71fb8c9f624ea973c99981da080fa8b0ee
SSDEEP 6144:weOh9kp45g6fNFO2ActWo7qMT357w4DRUzI2t7UMS5PfK:wdkYn4AqMT35M4DRULHA3K
TLSH
T1C254E106B6E38B6EF693E5735831CA4C0732895729325F679583C21568E1FCBB421BCB
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

u852117.nvpn.so:5638

Mutex

31a1bd10-70b4-4419-9b7f-75dbc4160d94

Attributes

activate_away_mode
true
backup_connection_host
u852117.nvpn.so
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-02-11T21:26:44.406621436Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
5638
default_group
NEW COMCASTED
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
31a1bd10-70b4-4419-9b7f-75dbc4160d94
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
u852117.nvpn.so
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
4220	wansvc.exe
3456	wansvc.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WAN Service = "C:\\Program Files (x86)\\WAN Service\\wansvc.exe"	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.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	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2328 set thread context of 4812	2328	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe	92
PID 4220 set thread context of 3456	4220	wansvc.exe	96

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WAN Service\wansvc.exe	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe
File opened for modification	C:\Program Files (x86)\WAN Service\wansvc.exe	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe

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	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wansvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wansvc.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4812	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe
4812	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe
4812	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4812	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4812	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 5000	2328	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe	86
PID 2328 wrote to memory of 4812	2328	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe	92
PID 2328 wrote to memory of 4812	2328	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe	92
PID 2328 wrote to memory of 4812	2328	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe	92
PID 2328 wrote to memory of 4812	2328	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe	92
PID 2328 wrote to memory of 4812	2328	1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe	92
PID 4220 wrote to memory of 3456	4220	wansvc.exe	96
PID 4220 wrote to memory of 3456	4220	wansvc.exe	96
PID 4220 wrote to memory of 3456	4220	wansvc.exe	96
PID 4220 wrote to memory of 3456	4220	wansvc.exe	96
PID 4220 wrote to memory of 3456	4220	wansvc.exe	96

C:\Users\Admin\AppData\Local\Temp\1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe
"C:\Users\Admin\AppData\Local\Temp\1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Users\Admin\AppData\Local\Temp\1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe
  C:\Users\Admin\AppData\Local\Temp\1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe
  2⤵
  PID:5000
- C:\Users\Admin\AppData\Local\Temp\1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe
  C:\Users\Admin\AppData\Local\Temp\1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:4812

C:\Program Files (x86)\WAN Service\wansvc.exe
"C:\Program Files (x86)\WAN Service\wansvc.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4220
- C:\Program Files (x86)\WAN Service\wansvc.exe
  "C:\Program Files (x86)\WAN Service\wansvc.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3456

Network

MITRE ATT&CK Enterprise v16

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

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

wansvc.exe

Path C:\Program Files (x86)\WAN Service\wansvc.exe
Size 291KB
SHA256 1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480
MD5 c97d31e6c4311d688c7de8a19ba9f488
SHA1 2c0aa234321581f6414535e165a832b8cd4a4704
SHA512 62ffa02b28fa3105aa8da596d3f1fa3d26e820909de85e63dc1b539ac02305e08d5e77ec06a462f9864c281d3ff5db71fb8c9f624ea973c99981da080fa8b0ee
SSDEEP 6144:weOh9kp45g6fNFO2ActWo7qMT357w4DRUzI2t7UMS5PfK:wdkYn4AqMT35M4DRULHA3K
TLSH
T1C254E106B6E38B6EF693E5735831CA4C0732895729325F679583C21568E1FCBB421BCB
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\1fbae4f859c40f9446d06e76a4acf496fe0a43fb93b87f87d1077ab8a4490480.exe.log
Size 42B
SHA256 d8988d672d6915b46946b28c06ad8066c50041f6152a91d37ffa5cf129cc146b
MD5 84cfdb4b995b1dbf543b26b86c863adc
SHA1 d2f47764908bf30036cf8248b9ff5541e2711fa2
SHA512 485f0ed45e13f00a93762cbf15b4b8f996553baa021152fae5aba051e3736bcd3ca8f4328f0e6d9e3e1f910c96c4a9ae055331123ee08e3c2ce3a99ac2e177ce
MD5 SHA1 SHA512

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memory/2328-1-0x00000000051F0000-0x00000000052E0000-memory.dmp

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memory/2328-4-0x0000000005320000-0x0000000005330000-memory.dmp

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memory/2328-3-0x0000000005590000-0x0000000005680000-memory.dmp

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memory/2328-0-0x0000000000310000-0x000000000032B000-memory.dmp

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memory/4220-24-0x00000000053A0000-0x00000000053B0000-memory.dmp

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memory/4220-20-0x0000000005460000-0x0000000005550000-memory.dmp

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memory/4220-19-0x0000000000540000-0x000000000055B000-memory.dmp

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memory/4812-9-0x0000000005030000-0x00000000050CC000-memory.dmp

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memory/4812-11-0x0000000004F30000-0x0000000004F3A000-memory.dmp

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memory/4812-14-0x0000000005480000-0x000000000548A000-memory.dmp

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memory/4812-15-0x0000000005CC0000-0x0000000005CDE000-memory.dmp

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memory/4812-16-0x0000000005DF0000-0x0000000005DFA000-memory.dmp

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memory/4812-10-0x0000000005180000-0x0000000005190000-memory.dmp

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memory/4812-8-0x0000000004F90000-0x0000000005022000-memory.dmp

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memory/4812-7-0x00000000054A0000-0x0000000005A44000-memory.dmp

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memory/4812-2-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4812-26-0x0000000005180000-0x0000000005190000-memory.dmp

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