nanocore | e9e6a5e4d64f01b158801bbaead6aedfeeb8cd754e734d1471f591ca3e2c08f8

Analysis

max time kernel
147s
max time network
142s
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, 06:17

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General

Target

da2ab0267a2a37786edfb78c7a6a694d.exe
Size

281KB
MD5

da2ab0267a2a37786edfb78c7a6a694d
SHA1

f609fe3eb09175ae77aafcfe878be17bccd30621
SHA256

23a803a6c6730cd9ab23656c9d7ddb14f17c21cf25ea6a39e235ae1a132429a0
SHA512

224105a5f6ad2a8f8d1deaf5a57cd5b1d1869a476a14dd567e1a792571a11afe152f2b8b400c143dcabeae10b9940ecb4fc79345ad17a9e2fe40babc4b7b40f8
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fas:boSeGUA5YZazpXUmZhZ6is

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-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation	da2ab0267a2a37786edfb78c7a6a694d.exe

Executes dropped EXE 2 IoCs

pid	Process
4760	a1punf5t2of.exe
3016	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-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	da2ab0267a2a37786edfb78c7a6a694d.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 4760 set thread context of 3016	4760	a1punf5t2of.exe	95

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	da2ab0267a2a37786edfb78c7a6a694d.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
3016	a1punf5t2of.exe
3016	a1punf5t2of.exe
3016	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3016	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3016	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5308 wrote to memory of 4760	5308	da2ab0267a2a37786edfb78c7a6a694d.exe	94
PID 5308 wrote to memory of 4760	5308	da2ab0267a2a37786edfb78c7a6a694d.exe	94
PID 5308 wrote to memory of 4760	5308	da2ab0267a2a37786edfb78c7a6a694d.exe	94
PID 4760 wrote to memory of 3016	4760	a1punf5t2of.exe	95
PID 4760 wrote to memory of 3016	4760	a1punf5t2of.exe	95
PID 4760 wrote to memory of 3016	4760	a1punf5t2of.exe	95
PID 4760 wrote to memory of 3016	4760	a1punf5t2of.exe	95
PID 4760 wrote to memory of 3016	4760	a1punf5t2of.exe	95
PID 4760 wrote to memory of 3016	4760	a1punf5t2of.exe	95
PID 4760 wrote to memory of 3016	4760	a1punf5t2of.exe	95
PID 4760 wrote to memory of 3016	4760	a1punf5t2of.exe	95

C:\Users\Admin\AppData\Local\Temp\da2ab0267a2a37786edfb78c7a6a694d.exe
"C:\Users\Admin\AppData\Local\Temp\da2ab0267a2a37786edfb78c7a6a694d.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5308
- 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:4760
- - 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:3016

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
73c162b4b26be170b5474a147d2a4ef3

SHA1
fb80eaf771ad7e37400ea63ec1e7b1fe1a07f89e

SHA256
8233b24c51ef786554583c27c951f477eb710ab137963b48b984d5f0070e7aeb

SHA512
50accde7205c724ce8f130312962b946887588e86f90825710f9cbfc4d74479f38149c6195d5faab0f43a0577ff720e2c2cae3837053eb57560598e7719df822

Download Submit
memory/3016-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3016-40-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/3016-37-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/3016-36-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/3016-34-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/3016-33-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/3016-32-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/3016-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3016-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4760-24-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/4760-20-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/4760-39-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/4760-25-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/4760-26-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/4760-23-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/4760-22-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/5308-21-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/5308-6-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/5308-5-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/5308-4-0x0000000074D82000-0x0000000074D83000-memory.dmp

Filesize
4KB

Download
memory/5308-3-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/5308-2-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download
memory/5308-0-0x0000000074D82000-0x0000000074D83000-memory.dmp

Filesize
4KB

Download
memory/5308-1-0x0000000074D80000-0x0000000075331000-memory.dmp

Filesize
5.7MB

Download