nanocore | 5656064ae4d3c302be4f376131bce57fa83ba30e94c329f33adb91836d7f4bf8

Analysis

max time kernel
145s
max time network
127s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:25

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General

Target

3293f41661f096b9d6839d0389f94416.exe
Size

281KB
MD5

3293f41661f096b9d6839d0389f94416
SHA1

a6859f9404d495fae0d97943cbe1eca18533d88f
SHA256

5184fed556ebc70582af5db9792f111346abab38aa5f022769fbb2b82d64708d
SHA512

4e52d61fc3a1fd2813c86cce57e139dfe22587d97be2eb5beb2f3e2410a0f2aaa0a2a0475ab2f130062b7b7bf3d1a162c375ea7dc3eb5051ad9bd6913d637a20
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

Executes dropped EXE 2 IoCs

pid	Process
2772	a1punf5t2of.exe
2776	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
1584	3293f41661f096b9d6839d0389f94416.exe
2772	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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	3293f41661f096b9d6839d0389f94416.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 2772 set thread context of 2776	2772	a1punf5t2of.exe	32

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	3293f41661f096b9d6839d0389f94416.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
2776	a1punf5t2of.exe
2776	a1punf5t2of.exe
2776	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2776	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2776	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1584 wrote to memory of 2772	1584	3293f41661f096b9d6839d0389f94416.exe	31
PID 1584 wrote to memory of 2772	1584	3293f41661f096b9d6839d0389f94416.exe	31
PID 1584 wrote to memory of 2772	1584	3293f41661f096b9d6839d0389f94416.exe	31
PID 1584 wrote to memory of 2772	1584	3293f41661f096b9d6839d0389f94416.exe	31
PID 1584 wrote to memory of 2772	1584	3293f41661f096b9d6839d0389f94416.exe	31
PID 1584 wrote to memory of 2772	1584	3293f41661f096b9d6839d0389f94416.exe	31
PID 1584 wrote to memory of 2772	1584	3293f41661f096b9d6839d0389f94416.exe	31
PID 2772 wrote to memory of 2776	2772	a1punf5t2of.exe	32
PID 2772 wrote to memory of 2776	2772	a1punf5t2of.exe	32
PID 2772 wrote to memory of 2776	2772	a1punf5t2of.exe	32
PID 2772 wrote to memory of 2776	2772	a1punf5t2of.exe	32
PID 2772 wrote to memory of 2776	2772	a1punf5t2of.exe	32
PID 2772 wrote to memory of 2776	2772	a1punf5t2of.exe	32
PID 2772 wrote to memory of 2776	2772	a1punf5t2of.exe	32
PID 2772 wrote to memory of 2776	2772	a1punf5t2of.exe	32
PID 2772 wrote to memory of 2776	2772	a1punf5t2of.exe	32
PID 2772 wrote to memory of 2776	2772	a1punf5t2of.exe	32
PID 2772 wrote to memory of 2776	2772	a1punf5t2of.exe	32
PID 2772 wrote to memory of 2776	2772	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\3293f41661f096b9d6839d0389f94416.exe
"C:\Users\Admin\AppData\Local\Temp\3293f41661f096b9d6839d0389f94416.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1584
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2772
- - 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:2776

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

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

\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Filesize
281KB

MD5
3a943fcdc670e160432c405b02c238bd

SHA1
4022c34465e859c28d0312ff83907645289b21cb

SHA256
368abc33e7da0166260ea1dc185ae6bfce98abd77d5854a4ed85a3dd0d738c67

SHA512
d3dec6003ee789d2df41600b4b819df66532960094505167aaa2ef93384989608896ae3bf6b0cbaf03e5adad9ed40d2d0ea51071bd59076fbdd568c3d2f3713e

Download Submit
memory/1584-14-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/1584-1-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/1584-2-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/1584-3-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/1584-4-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/1584-5-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/1584-0-0x00000000743A1000-0x00000000743A2000-memory.dmp

Filesize
4KB

Download
memory/2772-16-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/2772-17-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/2772-15-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/2772-18-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/2772-19-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/2772-20-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/2772-42-0x00000000743A0000-0x000000007494B000-memory.dmp

Filesize
5.7MB

Download
memory/2776-38-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2776-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2776-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2776-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2776-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2776-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2776-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2776-40-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download