nanocore | 4e63dde927cbcf9398224adc3a3d1b5407f92fef63bb1daecb7e1f46b2dc6740

General

Target

4e63dde927cbcf9398224adc3a3d1b5407f92fef63bb1daecb7e1f46b2dc6740.exe
Size

281KB
MD5

902f329132d38b6ab6a8cd38cc59a493
SHA1

94462ef8f247e98259c8b7b08ea76dac2f94e701
SHA256

4e63dde927cbcf9398224adc3a3d1b5407f92fef63bb1daecb7e1f46b2dc6740
SHA512

4faeb3f2375692ea1f74ecd844cf9b7ba46cbc9611fbe64ab5f804b783a277e63fab197e1ba0a5b52550c61bf6829bfa2f180e3c7422f7b0946fc38e3b3d5746
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfi:boSeGUA5YZazpXUmZhZ6S/

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

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
2864	a1punf5t2of.exe
2632	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2352	4e63dde927cbcf9398224adc3a3d1b5407f92fef63bb1daecb7e1f46b2dc6740.exe
2864	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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	4e63dde927cbcf9398224adc3a3d1b5407f92fef63bb1daecb7e1f46b2dc6740.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

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 2864 set thread context of 2632	2864	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	4e63dde927cbcf9398224adc3a3d1b5407f92fef63bb1daecb7e1f46b2dc6740.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
2632	a1punf5t2of.exe
2632	a1punf5t2of.exe
2632	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2632	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2632	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 2864	2352	4e63dde927cbcf9398224adc3a3d1b5407f92fef63bb1daecb7e1f46b2dc6740.exe	31
PID 2352 wrote to memory of 2864	2352	4e63dde927cbcf9398224adc3a3d1b5407f92fef63bb1daecb7e1f46b2dc6740.exe	31
PID 2352 wrote to memory of 2864	2352	4e63dde927cbcf9398224adc3a3d1b5407f92fef63bb1daecb7e1f46b2dc6740.exe	31
PID 2352 wrote to memory of 2864	2352	4e63dde927cbcf9398224adc3a3d1b5407f92fef63bb1daecb7e1f46b2dc6740.exe	31
PID 2352 wrote to memory of 2864	2352	4e63dde927cbcf9398224adc3a3d1b5407f92fef63bb1daecb7e1f46b2dc6740.exe	31
PID 2352 wrote to memory of 2864	2352	4e63dde927cbcf9398224adc3a3d1b5407f92fef63bb1daecb7e1f46b2dc6740.exe	31
PID 2352 wrote to memory of 2864	2352	4e63dde927cbcf9398224adc3a3d1b5407f92fef63bb1daecb7e1f46b2dc6740.exe	31
PID 2864 wrote to memory of 2632	2864	a1punf5t2of.exe	32
PID 2864 wrote to memory of 2632	2864	a1punf5t2of.exe	32
PID 2864 wrote to memory of 2632	2864	a1punf5t2of.exe	32
PID 2864 wrote to memory of 2632	2864	a1punf5t2of.exe	32
PID 2864 wrote to memory of 2632	2864	a1punf5t2of.exe	32
PID 2864 wrote to memory of 2632	2864	a1punf5t2of.exe	32
PID 2864 wrote to memory of 2632	2864	a1punf5t2of.exe	32
PID 2864 wrote to memory of 2632	2864	a1punf5t2of.exe	32
PID 2864 wrote to memory of 2632	2864	a1punf5t2of.exe	32
PID 2864 wrote to memory of 2632	2864	a1punf5t2of.exe	32
PID 2864 wrote to memory of 2632	2864	a1punf5t2of.exe	32
PID 2864 wrote to memory of 2632	2864	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\4e63dde927cbcf9398224adc3a3d1b5407f92fef63bb1daecb7e1f46b2dc6740.exe
"C:\Users\Admin\AppData\Local\Temp\4e63dde927cbcf9398224adc3a3d1b5407f92fef63bb1daecb7e1f46b2dc6740.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2352
- 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:2864
- - 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:2632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

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
443892b3f6d233377a310cb7d5a9d381

SHA1
73af6afa034e67e811b29b50dcf811d300c1bd22

SHA256
31011487d5f8d5a13bb0a456b0296fddcef6a0fa5e1d69ffeaf572bd87e186f0

SHA512
49aa126bdc913447c16e389f392aa4cadae5a5e1740394d978f349323e3fe195337ef06cdb63d8596ca706b40741060ecdc4551fcfe966b48e77b946aef9a321

Download Submit
memory/2352-3-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/2352-2-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/2352-1-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/2352-0-0x0000000074DA1000-0x0000000074DA2000-memory.dmp

Filesize
4KB

Download
memory/2352-4-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/2352-5-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/2352-6-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/2352-15-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/2632-36-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2632-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2632-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2632-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2632-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2632-38-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2632-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2632-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2864-21-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/2864-17-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/2864-16-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/2864-20-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/2864-18-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/2864-19-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/2864-40-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads