nanocore | ac5fa0b95eb652ea20dfe2764447f4dd75e33036c9ed1ece7b27acbf58b3d476

Analysis

max time kernel
125s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20250619-en
resource tags

arch:x64arch:x86image:win10v2004-20250619-enlocale:en-usos:windows10-2004-x64system
submitted
09/07/2025, 02:05

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General

Target
_ac5fa0b95eb652ea20dfe2764447f4dd75e33036c9ed1ece7b27acbf58b3d476.exe
Size 1.1MB
Sample250709-chwvcsfp2s
SHA256 ac5fa0b95eb652ea20dfe2764447f4dd75e33036c9ed1ece7b27acbf58b3d476
MD5 89ff8786fb298f659fa8b246c8e7ea69
SHA1 21e49c1bb0e68e4771381801f8dd602fd03f8a20
SHA512 b0615fa11279206d25e62a358cb05e4409b7df4091365ebae48fac5843b07fe12fa6e5d5ffd31882f4585650493144fefab387248cfa41ee714fd02316a7177d
SSDEEP 24576:Ltb20pkaCqT5TBWgNQ7auW28F/c4M1DE6A:IVg5tQ7auWF/7M1Q5
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

192.227.217.234:20911
newxx.ddns.net:20911

Mutex

ed7aecae-e024-4498-83c7-46bad7385e82

Attributes

activate_away_mode
true
backup_connection_host
newxx.ddns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2025-04-20T03:04:47.072963736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
20911
default_group
AA
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
ed7aecae-e024-4498-83c7-46bad7385e82
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
192.227.217.234
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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Idonna.vbs	Idonna.exe

Executes dropped EXE 1 IoCs

pid	Process
4468	Idonna.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x000b000000023e68-15.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4468 set thread context of 448	4468	Idonna.exe	92

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	Idonna.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	_ac5fa0b95eb652ea20dfe2764447f4dd75e33036c9ed1ece7b27acbf58b3d476.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
448	RegSvcs.exe
448	RegSvcs.exe
448	RegSvcs.exe
448	RegSvcs.exe
448	RegSvcs.exe
448	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
448	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4468	Idonna.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	448	RegSvcs.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 4468	2760	_ac5fa0b95eb652ea20dfe2764447f4dd75e33036c9ed1ece7b27acbf58b3d476.exe	90
PID 2760 wrote to memory of 4468	2760	_ac5fa0b95eb652ea20dfe2764447f4dd75e33036c9ed1ece7b27acbf58b3d476.exe	90
PID 2760 wrote to memory of 4468	2760	_ac5fa0b95eb652ea20dfe2764447f4dd75e33036c9ed1ece7b27acbf58b3d476.exe	90
PID 4468 wrote to memory of 448	4468	Idonna.exe	92
PID 4468 wrote to memory of 448	4468	Idonna.exe	92
PID 4468 wrote to memory of 448	4468	Idonna.exe	92
PID 4468 wrote to memory of 448	4468	Idonna.exe	92

C:\Users\Admin\AppData\Local\Temp\_ac5fa0b95eb652ea20dfe2764447f4dd75e33036c9ed1ece7b27acbf58b3d476.exe
"C:\Users\Admin\AppData\Local\Temp\_ac5fa0b95eb652ea20dfe2764447f4dd75e33036c9ed1ece7b27acbf58b3d476.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Users\Admin\AppData\Local\unnervously\Idonna.exe
  "C:\Users\Admin\AppData\Local\Temp\_ac5fa0b95eb652ea20dfe2764447f4dd75e33036c9ed1ece7b27acbf58b3d476.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4468
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\_ac5fa0b95eb652ea20dfe2764447f4dd75e33036c9ed1ece7b27acbf58b3d476.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:448

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

lards

Path C:\Users\Admin\AppData\Local\Temp\lards
Size 45KB
SHA256 e89d4212c94ed7379fc123bb43249ae209f74dbf689d42a8fe4c489969ebc5a2
MD5 f1874cca135277692b67df47c66d7f1d
SHA1 ceaa7b461be08e7efb9876aa0bec2924adc5726d
SHA512 a04b86bfc8c29070a933807b7a84805e2afa3e82cd2f988396e8479b02a3a2ffc14c52dfc63218b32ae4f5a940a2177918415aed0f9b2cfec597af5b7be51909
SSDEEP 768:JB1V+3Z9L4ic11786OMCO6LtMDuUdXFRgd5oQCDDR4kI8ZI5HJXB:71YX0vkQusVNQCpGpXB
MD5 SHA1 SHA512 SSDEEP

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Idonna.exe

Path C:\Users\Admin\AppData\Local\unnervously\Idonna.exe
Size 1.1MB
SHA256 ac5fa0b95eb652ea20dfe2764447f4dd75e33036c9ed1ece7b27acbf58b3d476
MD5 89ff8786fb298f659fa8b246c8e7ea69
SHA1 21e49c1bb0e68e4771381801f8dd602fd03f8a20
SHA512 b0615fa11279206d25e62a358cb05e4409b7df4091365ebae48fac5843b07fe12fa6e5d5ffd31882f4585650493144fefab387248cfa41ee714fd02316a7177d
SSDEEP 24576:Ltb20pkaCqT5TBWgNQ7auW28F/c4M1DE6A:IVg5tQ7auWF/7M1Q5
MD5 SHA1 SHA512 SSDEEP

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memory/448-33-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/448-34-0x0000000001AC0000-0x0000000001AD0000-memory.dmp

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memory/448-35-0x0000000074D72000-0x0000000074D74000-memory.dmp

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memory/448-37-0x0000000074D70000-0x0000000075321000-memory.dmp

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memory/448-40-0x0000000001AC0000-0x0000000001AD0000-memory.dmp

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memory/448-41-0x0000000074D72000-0x0000000074D74000-memory.dmp

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memory/448-42-0x0000000074D70000-0x0000000075321000-memory.dmp

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memory/2760-12-0x0000000000AD0000-0x0000000000ED0000-memory.dmp

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memory/4468-31-0x0000000001870000-0x0000000001C70000-memory.dmp

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