nanocore | 01ffe9d6f323a1dafd7dbe75338596cb03cdbe970cdc964543ae03006c1ece85

Analysis

max time kernel
58s
max time network
60s
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, 20:33

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General

Target

1fb433aec18f49dd4aaed65148cb184e0b7051e23b89fdd7475e4258d013dc59.exe
Size

281KB
MD5

14abc67d890548ae22c3b0e023174914
SHA1

47d2ae785d46125c9a55ee4a73075828a9e6c84c
SHA256

1fb433aec18f49dd4aaed65148cb184e0b7051e23b89fdd7475e4258d013dc59
SHA512

1b80df3e751530d8cf193b968ee56abcef2bfa8f22b57e8a530db299d849f3475b7b64415444ee2ef1ef48a08aa4c1882ef108b5dbed007c071c5146ef5f4105
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66faJ:boSeGUA5YZazpXUmZhZ6iJ

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-1-5-21-805952410-2104024357-1716932545-1000\Control Panel\International\Geo\Nation	1fb433aec18f49dd4aaed65148cb184e0b7051e23b89fdd7475e4258d013dc59.exe

Executes dropped EXE 2 IoCs

pid	Process
2636	a1punf5t2of.exe
2904	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-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	1fb433aec18f49dd4aaed65148cb184e0b7051e23b89fdd7475e4258d013dc59.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 2636 set thread context of 2904	2636	a1punf5t2of.exe	99

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	1fb433aec18f49dd4aaed65148cb184e0b7051e23b89fdd7475e4258d013dc59.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
2904	a1punf5t2of.exe
2904	a1punf5t2of.exe
2904	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2904	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2904	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4640 wrote to memory of 2636	4640	1fb433aec18f49dd4aaed65148cb184e0b7051e23b89fdd7475e4258d013dc59.exe	98
PID 4640 wrote to memory of 2636	4640	1fb433aec18f49dd4aaed65148cb184e0b7051e23b89fdd7475e4258d013dc59.exe	98
PID 4640 wrote to memory of 2636	4640	1fb433aec18f49dd4aaed65148cb184e0b7051e23b89fdd7475e4258d013dc59.exe	98
PID 2636 wrote to memory of 2904	2636	a1punf5t2of.exe	99
PID 2636 wrote to memory of 2904	2636	a1punf5t2of.exe	99
PID 2636 wrote to memory of 2904	2636	a1punf5t2of.exe	99
PID 2636 wrote to memory of 2904	2636	a1punf5t2of.exe	99
PID 2636 wrote to memory of 2904	2636	a1punf5t2of.exe	99
PID 2636 wrote to memory of 2904	2636	a1punf5t2of.exe	99
PID 2636 wrote to memory of 2904	2636	a1punf5t2of.exe	99
PID 2636 wrote to memory of 2904	2636	a1punf5t2of.exe	99

C:\Users\Admin\AppData\Local\Temp\1fb433aec18f49dd4aaed65148cb184e0b7051e23b89fdd7475e4258d013dc59.exe
"C:\Users\Admin\AppData\Local\Temp\1fb433aec18f49dd4aaed65148cb184e0b7051e23b89fdd7475e4258d013dc59.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4640
- 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:2636
- - 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:2904

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\b1b2dqljdx3\a1punf5t2of.exe

Filesize
281KB

MD5
69c7813f45d59a8d9074b5b91f187b20

SHA1
b4cb77ab5d7259f211a81bb4aa9df0c01416de00

SHA256
3c6c358a86eb1b03176a239380e3bdac43f9a0b4de113d8b7f3a2852e731e65c

SHA512
0863d42668b9d53c73e0d87298982bcf66ef189a6e9e13478346ec0a364d50b0c570d9160281b1c1e59ac88305f0feebe5838b1b98ad01d2087cd6b7d7c49c9a

Download Submit
memory/2636-40-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/2636-27-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/2636-26-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/2636-25-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/2636-22-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/2636-23-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/2636-21-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/2904-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2904-35-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/2904-41-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/2904-38-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/2904-37-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/2904-34-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/2904-33-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/2904-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2904-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4640-2-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4640-0-0x00000000754D2000-0x00000000754D3000-memory.dmp

Filesize
4KB

Download
memory/4640-3-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4640-4-0x00000000754D2000-0x00000000754D3000-memory.dmp

Filesize
4KB

Download
memory/4640-7-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4640-5-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4640-6-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4640-1-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4640-24-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download