nanocore | 5656064ae4d3c302be4f376131bce57fa83ba30e94c329f33adb91836d7f4bf8

Analysis

max time kernel
148s
max time network
133s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:09

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General

Target

326fcf48062cbb0bacf4663fee8a51c740e810ee0477fcf6eb3e8c5420909e79.exe
Size

281KB
MD5

11a206843f7380a2768c3ef10d7d287b
SHA1

39df631695e0cd57e95239e07b4ccb3f133b4cde
SHA256

326fcf48062cbb0bacf4663fee8a51c740e810ee0477fcf6eb3e8c5420909e79
SHA512

aa96cd1a0dba83fcd9e6eebb6f19239586bb65e9a66ccdd301a62df9ee0eb601849bb84ffd359d334e632a6f310093df7f6b4e3277776a6db9416fae0a188ab5
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66faD:boSeGUA5YZazpXUmZhZ6iD

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
2588	a1punf5t2of.exe
2272	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2904	326fcf48062cbb0bacf4663fee8a51c740e810ee0477fcf6eb3e8c5420909e79.exe
2588	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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	326fcf48062cbb0bacf4663fee8a51c740e810ee0477fcf6eb3e8c5420909e79.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 2588 set thread context of 2272	2588	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	326fcf48062cbb0bacf4663fee8a51c740e810ee0477fcf6eb3e8c5420909e79.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
2272	a1punf5t2of.exe
2272	a1punf5t2of.exe
2272	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2272	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2272	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 2588	2904	326fcf48062cbb0bacf4663fee8a51c740e810ee0477fcf6eb3e8c5420909e79.exe	30
PID 2904 wrote to memory of 2588	2904	326fcf48062cbb0bacf4663fee8a51c740e810ee0477fcf6eb3e8c5420909e79.exe	30
PID 2904 wrote to memory of 2588	2904	326fcf48062cbb0bacf4663fee8a51c740e810ee0477fcf6eb3e8c5420909e79.exe	30
PID 2904 wrote to memory of 2588	2904	326fcf48062cbb0bacf4663fee8a51c740e810ee0477fcf6eb3e8c5420909e79.exe	30
PID 2904 wrote to memory of 2588	2904	326fcf48062cbb0bacf4663fee8a51c740e810ee0477fcf6eb3e8c5420909e79.exe	30
PID 2904 wrote to memory of 2588	2904	326fcf48062cbb0bacf4663fee8a51c740e810ee0477fcf6eb3e8c5420909e79.exe	30
PID 2904 wrote to memory of 2588	2904	326fcf48062cbb0bacf4663fee8a51c740e810ee0477fcf6eb3e8c5420909e79.exe	30
PID 2588 wrote to memory of 2272	2588	a1punf5t2of.exe	32
PID 2588 wrote to memory of 2272	2588	a1punf5t2of.exe	32
PID 2588 wrote to memory of 2272	2588	a1punf5t2of.exe	32
PID 2588 wrote to memory of 2272	2588	a1punf5t2of.exe	32
PID 2588 wrote to memory of 2272	2588	a1punf5t2of.exe	32
PID 2588 wrote to memory of 2272	2588	a1punf5t2of.exe	32
PID 2588 wrote to memory of 2272	2588	a1punf5t2of.exe	32
PID 2588 wrote to memory of 2272	2588	a1punf5t2of.exe	32
PID 2588 wrote to memory of 2272	2588	a1punf5t2of.exe	32
PID 2588 wrote to memory of 2272	2588	a1punf5t2of.exe	32
PID 2588 wrote to memory of 2272	2588	a1punf5t2of.exe	32
PID 2588 wrote to memory of 2272	2588	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\326fcf48062cbb0bacf4663fee8a51c740e810ee0477fcf6eb3e8c5420909e79.exe
"C:\Users\Admin\AppData\Local\Temp\326fcf48062cbb0bacf4663fee8a51c740e810ee0477fcf6eb3e8c5420909e79.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- 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:2588
- - 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:2272

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
0efd5c85ce6edb19963a5afc6181c525

SHA1
84f48f5f7d69241bcac5b46ef087607782687ec5

SHA256
92f994f9098a89c64db5bb50529641fe646eccbed975d212dcead6fbcd8eeaa7

SHA512
df81275eac147dd3749429b509ff0d2275d47ac53f28af34a0dcd2dee268727d54235fb85477b1609533fdef1b8538faff15dc5597b27bb3a20572ad4c651ccc

Download Submit
memory/2272-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2272-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2272-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2272-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2272-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2272-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2272-38-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2272-40-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2588-17-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download
memory/2588-42-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download
memory/2588-43-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download
memory/2588-18-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download
memory/2588-15-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download
memory/2588-19-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download
memory/2588-20-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download
memory/2588-16-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download
memory/2904-14-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download
memory/2904-0-0x0000000074241000-0x0000000074242000-memory.dmp

Filesize
4KB

Download
memory/2904-5-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download
memory/2904-4-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download
memory/2904-3-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download
memory/2904-1-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download
memory/2904-2-0x0000000074240000-0x00000000747EB000-memory.dmp

Filesize
5.7MB

Download