nanocore | 827706d0fcefd65cd192a5d340cd5dd97790f1318f6e8adffe21ad94620af1cd

Analysis

max time kernel
600s
max time network
602s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/10/2026, 10:58

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General

Target
3kmtc3.exe
Size 203KB
Sample261002-m2s8paha65
SHA256 827706d0fcefd65cd192a5d340cd5dd97790f1318f6e8adffe21ad94620af1cd
MD5 ecd66d374b73e18cdf18e14943964699
SHA1 03cfa520a615fda30de3f8a471fdc7f278662b23
SHA512 b6a80fbfa9f163ebbc3aac5d92d5dba72f17c78e57cd83219fe20226639a0d03a2aa36ccdfe3c0970cf877d6213c1c7e0684f5ffafd0f66e8f422e41763eda71
SSDEEP 6144:MLV6Bta6dtJmakIM5oPvO8Zj0uf4QT1tN:MLV6BtpmkXTZBDtN
TLSH
T1C014C05677A88A2FE2DE867D611201129378C2E3D8C3F3EE28D465B75F267E10A071D3
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

gameranger.com:443
www.gameranger.com:443

Mutex

37a797b0-ec8d-4554-a523-a243a8811b9c

Attributes

activate_away_mode
true
backup_connection_host
www.gameranger.com
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2026-06-25T09:52:01.949224136Z
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
443
default_group
Default
enable_debug_mode
false
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
37a797b0-ec8d-4554-a523-a243a8811b9c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
gameranger.com
primary_dns_server
8.8.8.8
request_elevation
false
restart_delay
5000
run_delay
9
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 1 IoCs

pid	Process
4348	arphost.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\ARP Host = "C:\\Program Files (x86)\\ARP Host\\arphost.exe"	3kmtc3.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	3kmtc3.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ARP Host\arphost.exe	3kmtc3.exe
File opened for modification	C:\Program Files (x86)\ARP Host\client.log	arphost.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	3kmtc3.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	3kmtc3.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	arphost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3kmtc3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3kmtc3.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3192	schtasks.exe
4596	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe
792	3kmtc3.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
792	3kmtc3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	792	3kmtc3.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 792 wrote to memory of 3192	792	3kmtc3.exe	90
PID 792 wrote to memory of 4596	792	3kmtc3.exe	92

C:\Users\Admin\AppData\Local\Temp\3kmtc3.exe
"C:\Users\Admin\AppData\Local\Temp\3kmtc3.exe"
1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:792
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "ARP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp459A.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3192
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "ARP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4647.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4596

C:\Users\Admin\AppData\Local\Temp\3kmtc3.exe
"C:\Users\Admin\AppData\Local\Temp\3kmtc3.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:700

C:\Program Files (x86)\ARP Host\arphost.exe
"C:\Program Files (x86)\ARP Host\arphost.exe"
1⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4348

Network

MITRE ATT&CK Enterprise v16

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

arphost.exe

Path C:\Program Files (x86)\ARP Host\arphost.exe
Size 203KB
SHA256 827706d0fcefd65cd192a5d340cd5dd97790f1318f6e8adffe21ad94620af1cd
MD5 ecd66d374b73e18cdf18e14943964699
SHA1 03cfa520a615fda30de3f8a471fdc7f278662b23
SHA512 b6a80fbfa9f163ebbc3aac5d92d5dba72f17c78e57cd83219fe20226639a0d03a2aa36ccdfe3c0970cf877d6213c1c7e0684f5ffafd0f66e8f422e41763eda71
SSDEEP 6144:MLV6Bta6dtJmakIM5oPvO8Zj0uf4QT1tN:MLV6BtpmkXTZBDtN
TLSH
T1C014C05677A88A2FE2DE867D611201129378C2E3D8C3F3EE28D465B75F267E10A071D3
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

tmp459A.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp459A.tmp
Size 1KB
SHA256 f539ecb3b99648f9e05b06321a4e9a9bd17c946f5a4174dee5122fc151fb6f10
MD5 66768571dbf1271972c23a41eb9dd519
SHA1 7ae20216f8e641296aeb73a656618e822d0d9113
SHA512 05d115e471c10ce1c9de33a64421cfb1c88b0890003bcfab35c41ed62b6fd4d58d19234a9e5906cce6f637df4d305c3889b7711e46e03e13b54722b5351ac719
TLSH
T17721C064ACC0F61F66715629A39197C2DE2A57A701564138FCCC4E7F3FB6186308316B
MD5 SHA1 SHA512 TLSH

Submit Download

tmp4647.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp4647.tmp
Size 1KB
SHA256 8d5304b20b7d7dea223ce2738e5668054250d57bf6bed86b305b69924bd472f5
MD5 447ab194ab36cb1d20078d80e502b1b2
SHA1 a947b3b2c91d7c50bb8d39bd4fc91a0d0cc5b1c0
SHA512 49ddc557f7f6635627eea9bf0fa12a14b7b13edb235ed560ee0044a7f87fe27b686ff878d347d0273d92eb0b318b8c2bca85c0fbf42d586ed7d7da39eac6a327
TLSH
T1BF21CD64ACC0F61B66B19629A39197C2EF2A97A301564138FCCC4A7F3FB6186304316B
MD5 SHA1 SHA512 TLSH

Submit Download

memory/700-16-0x0000000074C00000-0x0000000075221000-memory.dmp

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memory/700-8-0x0000000074C00000-0x0000000075221000-memory.dmp

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memory/700-9-0x0000000074C00000-0x0000000075221000-memory.dmp

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memory/700-17-0x0000000074C00000-0x0000000075221000-memory.dmp

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memory/792-10-0x0000000074C00000-0x0000000075221000-memory.dmp

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memory/792-1-0x0000000074C02000-0x0000000074C04000-memory.dmp

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memory/792-14-0x0000000001020000-0x0000000001030000-memory.dmp

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memory/792-15-0x0000000074C02000-0x0000000074C04000-memory.dmp

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memory/792-0-0x0000000001020000-0x0000000001030000-memory.dmp

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memory/792-19-0x0000000074C00000-0x0000000075221000-memory.dmp

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memory/4348-12-0x0000000074C00000-0x0000000075221000-memory.dmp

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memory/4348-13-0x0000000074C00000-0x0000000075221000-memory.dmp

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memory/4348-18-0x0000000074C00000-0x0000000075221000-memory.dmp

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