nanocore | bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039

General

Target

bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe
Size

281KB
MD5

60a3c1bf8400e832360b4c404eebbb25
SHA1

e2970e1d1de3f8fd68bdac2fc71066816e97ccc3
SHA256

bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039
SHA512

995906245e3cebc0f7fad72ac8e6bc1f19fe74fde06e0fbd1fcbeaf140cdc5ab0f3faa925b8e818df54108e6d94a445544dae579350cdf02d83f97438c736f1e
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfA:boSeGUA5YZazpXUmZhZ6SZ

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

Executes dropped EXE 2 IoCs

Processes:

a1punf5t2of.exea1punf5t2of.exe

pid	Process
3000	a1punf5t2of.exe
2856	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

Processes:

bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exea1punf5t2of.exe

pid	Process
1120	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe
3000	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

a1punf5t2of.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

a1punf5t2of.exe

description	pid	Process	procid_target
PID 3000 set thread context of 2856	3000	a1punf5t2of.exe	30

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

Processes:

bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exea1punf5t2of.exea1punf5t2of.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.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

Processes:

a1punf5t2of.exe

pid	Process
2856	a1punf5t2of.exe
2856	a1punf5t2of.exe
2856	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid	Process
2856	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description	pid	Process
Token: SeDebugPrivilege	2856	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exea1punf5t2of.exe

description	pid	Process	procid_target
PID 1120 wrote to memory of 3000	1120	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe	29
PID 1120 wrote to memory of 3000	1120	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe	29
PID 1120 wrote to memory of 3000	1120	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe	29
PID 1120 wrote to memory of 3000	1120	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe	29
PID 1120 wrote to memory of 3000	1120	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe	29
PID 1120 wrote to memory of 3000	1120	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe	29
PID 1120 wrote to memory of 3000	1120	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe	29
PID 3000 wrote to memory of 2856	3000	a1punf5t2of.exe	30
PID 3000 wrote to memory of 2856	3000	a1punf5t2of.exe	30
PID 3000 wrote to memory of 2856	3000	a1punf5t2of.exe	30
PID 3000 wrote to memory of 2856	3000	a1punf5t2of.exe	30
PID 3000 wrote to memory of 2856	3000	a1punf5t2of.exe	30
PID 3000 wrote to memory of 2856	3000	a1punf5t2of.exe	30
PID 3000 wrote to memory of 2856	3000	a1punf5t2of.exe	30
PID 3000 wrote to memory of 2856	3000	a1punf5t2of.exe	30
PID 3000 wrote to memory of 2856	3000	a1punf5t2of.exe	30
PID 3000 wrote to memory of 2856	3000	a1punf5t2of.exe	30
PID 3000 wrote to memory of 2856	3000	a1punf5t2of.exe	30
PID 3000 wrote to memory of 2856	3000	a1punf5t2of.exe	30

C:\Users\Admin\AppData\Local\Temp\bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe
"C:\Users\Admin\AppData\Local\Temp\bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1120
- 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:3000
- - 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:2856

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
f909bb015ea7d2e2da093736871936d1

SHA1
34dff4ceab1c4a6ebafdab2f6f7c56e546ecfb93

SHA256
d42828562ae4e4bd43cbd810667c9aa2cf496248be907366739842ec1b10253f

SHA512
0d401ced8c1ae02361d2d03182771cd770d663cb178dd3307f4009429bd1a4c4111a46e0d46dee38245385d6434ec7d51bb465e8f5bac7344e480994869701fb

Download Submit
memory/1120-0-0x0000000074151000-0x0000000074152000-memory.dmp

Filesize
4KB

Download
memory/1120-1-0x0000000074150000-0x00000000746FB000-memory.dmp

Filesize
5.7MB

Download
memory/1120-2-0x0000000074150000-0x00000000746FB000-memory.dmp

Filesize
5.7MB

Download
memory/1120-3-0x0000000074150000-0x00000000746FB000-memory.dmp

Filesize
5.7MB

Download
memory/1120-4-0x0000000074150000-0x00000000746FB000-memory.dmp

Filesize
5.7MB

Download
memory/1120-5-0x0000000074150000-0x00000000746FB000-memory.dmp

Filesize
5.7MB

Download
memory/1120-6-0x0000000074150000-0x00000000746FB000-memory.dmp

Filesize
5.7MB

Download
memory/1120-15-0x0000000074150000-0x00000000746FB000-memory.dmp

Filesize
5.7MB

Download
memory/2856-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2856-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2856-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2856-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2856-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2856-41-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2856-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2856-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3000-21-0x0000000074150000-0x00000000746FB000-memory.dmp

Filesize
5.7MB

Download
memory/3000-16-0x0000000074150000-0x00000000746FB000-memory.dmp

Filesize
5.7MB

Download
memory/3000-18-0x0000000074150000-0x00000000746FB000-memory.dmp

Filesize
5.7MB

Download
memory/3000-20-0x0000000074150000-0x00000000746FB000-memory.dmp

Filesize
5.7MB

Download
memory/3000-19-0x0000000074150000-0x00000000746FB000-memory.dmp

Filesize
5.7MB

Download
memory/3000-17-0x0000000074150000-0x00000000746FB000-memory.dmp

Filesize
5.7MB

Download
memory/3000-43-0x0000000074150000-0x00000000746FB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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