nanocore | 3c9c9493f0fc436d8cfd2c132e876ec3542b8b0a5ae099f421b0c15141d1d69d

General

Target

3c9c9493f0fc436d8cfd2c132e876ec3542b8b0a5ae099f421b0c15141d1d69dN.exe
Size

282KB
MD5

e42bc6567a8f17ea72e74c5c03c86850
SHA1

389a523e9b28de80c0ae1dd5b18680bb95982446
SHA256

3c9c9493f0fc436d8cfd2c132e876ec3542b8b0a5ae099f421b0c15141d1d69d
SHA512

bdac05fb85c6cb36c726bfd240d8393b64624b0b5ec568bcc7fd511e365778be5d0f5258e7ec6e95f90e6dedd392a76b3d876335fa28e4bcc91b42385a008a1c
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfMu:boSeGUA5YZazpXUmZhZ6SS

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

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

Processes:

3c9c9493f0fc436d8cfd2c132e876ec3542b8b0a5ae099f421b0c15141d1d69dN.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	3c9c9493f0fc436d8cfd2c132e876ec3542b8b0a5ae099f421b0c15141d1d69dN.exe

Executes dropped EXE 2 IoCs

Processes:

a1punf5t2of.exea1punf5t2of.exe

pid	Process
3684	a1punf5t2of.exe
1400	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

3c9c9493f0fc436d8cfd2c132e876ec3542b8b0a5ae099f421b0c15141d1d69dN.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	3c9c9493f0fc436d8cfd2c132e876ec3542b8b0a5ae099f421b0c15141d1d69dN.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 3684 set thread context of 1400	3684	a1punf5t2of.exe	87

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:

3c9c9493f0fc436d8cfd2c132e876ec3542b8b0a5ae099f421b0c15141d1d69dN.exea1punf5t2of.exea1punf5t2of.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3c9c9493f0fc436d8cfd2c132e876ec3542b8b0a5ae099f421b0c15141d1d69dN.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
1400	a1punf5t2of.exe
1400	a1punf5t2of.exe
1400	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid	Process
1400	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description	pid	Process
Token: SeDebugPrivilege	1400	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

3c9c9493f0fc436d8cfd2c132e876ec3542b8b0a5ae099f421b0c15141d1d69dN.exea1punf5t2of.exe

description	pid	Process	procid_target
PID 3716 wrote to memory of 3684	3716	3c9c9493f0fc436d8cfd2c132e876ec3542b8b0a5ae099f421b0c15141d1d69dN.exe	86
PID 3716 wrote to memory of 3684	3716	3c9c9493f0fc436d8cfd2c132e876ec3542b8b0a5ae099f421b0c15141d1d69dN.exe	86
PID 3716 wrote to memory of 3684	3716	3c9c9493f0fc436d8cfd2c132e876ec3542b8b0a5ae099f421b0c15141d1d69dN.exe	86
PID 3684 wrote to memory of 1400	3684	a1punf5t2of.exe	87
PID 3684 wrote to memory of 1400	3684	a1punf5t2of.exe	87
PID 3684 wrote to memory of 1400	3684	a1punf5t2of.exe	87
PID 3684 wrote to memory of 1400	3684	a1punf5t2of.exe	87
PID 3684 wrote to memory of 1400	3684	a1punf5t2of.exe	87
PID 3684 wrote to memory of 1400	3684	a1punf5t2of.exe	87
PID 3684 wrote to memory of 1400	3684	a1punf5t2of.exe	87
PID 3684 wrote to memory of 1400	3684	a1punf5t2of.exe	87

C:\Users\Admin\AppData\Local\Temp\3c9c9493f0fc436d8cfd2c132e876ec3542b8b0a5ae099f421b0c15141d1d69dN.exe
"C:\Users\Admin\AppData\Local\Temp\3c9c9493f0fc436d8cfd2c132e876ec3542b8b0a5ae099f421b0c15141d1d69dN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3716
- 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:3684
- - 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:1400

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

Query Registry

1

T1012

System Information Discovery

3

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

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

Filesize
282KB

MD5
a46937f552571fafbf2bcb7265899ba7

SHA1
eb5ef0788bc90010e7c26c7ef3ce8083c0242a43

SHA256
b90b1f44a3f3d4296f388612de90e245f8852b32d0b30e33adcf071ce966696b

SHA512
1a6c62f2c1b2014f48a4d04cdabbc43183759e80396d624ce4d3e5f9dd445ada757782a6e223e134adda39fad1fe15ce229b60b77308db84231c8e0bbda6b99f

Download Submit
memory/1400-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1400-39-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/1400-36-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/1400-35-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/1400-33-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/1400-32-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/1400-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1400-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3684-24-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/3684-23-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/3684-38-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/3684-22-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/3684-25-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/3684-26-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/3716-7-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/3716-0-0x0000000074A02000-0x0000000074A03000-memory.dmp

Filesize
4KB

Download
memory/3716-6-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/3716-5-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/3716-4-0x0000000074A02000-0x0000000074A03000-memory.dmp

Filesize
4KB

Download
memory/3716-3-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/3716-2-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/3716-21-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download
memory/3716-1-0x0000000074A00000-0x0000000074FB1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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